# Blossom Gold Reports Initial Metallurgical Results and Engagement of Metallurgical Advisor for the Rosebud Open-Pit, Heap-Leach Project Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5 Original source: https://www.globenewswire.com/news-release/2026/08/27/3351836/0/en/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgical-advisor-for-the-rosebud-open-pit-heap-leach-project.html Publisher: globenewswire Original announcement: 2026-08-27T00:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Blossom Gold Inc. - Ticker: BGAU - Exchange: Unavailable - Region: Pershing County, Nevada - Primary commodity: Gold - Secondary commodities: Silver - Document categories: Metallurgy - Extracted: 2026-09-12 01:47:54 UTC Narrative sentiment: 0.30 · Bullish ## Minestarters Atlas summary Blossom Gold announced initial bottle roll metallurgical test results for its Rosebud Open-Pit, Heap-Leach Project in Nevada, showing average gold recoveries of 73% and silver recoveries of 63% for oxidized material at a 25mm crush. Fresh rock material, however, yielded lower average recoveries of 36% for gold and 40% for silver, with further tests indicating that roasting significantly improved recovery for sulfidic samples. The company also engaged a metallurgical advisor to guide ongoing test work aimed at defining recovery characteristics for mine planning and feasibility studies. Reasoning: Initial bottle roll tests for the Rosebud project show promising gold and silver recoveries for oxide material, supporting a heap leach approach. However, fresh rock material exhibits low recoveries due to sulfide characteristics, necessitating further test work and potentially more complex processing routes like roasting, which introduces uncertainty for that ore type. - Positive factor: Good gold and silver recoveries for oxide material \(73% Au, 63% Ag at 25mm crush\) are promising for a heap leach operation. - Positive factor: Silver recoveries were better than expected across all samples. - Positive factor: Tests confirmed non-preg-robbing material and low levels of mercury and copper, eliminating common metallurgical issues. - Positive factor: Engagement of an experienced metallurgical advisor \(Jim Wickens\) strengthens the program. - Negative factor: Fresh rock material shows significantly lower gold and silver recoveries \(36% Au, 40% Ag at 25mm crush\), indicating metallurgical challenges with sulfides. - Negative factor: Roasting was required to achieve high recoveries in some fresh rock samples, suggesting potential processing complexity and higher costs for this material. - Negative factor: The current results are from preliminary bottle roll tests, which are not as definitive as pilot-scale or locked-cycle tests. Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 52 ## Classification and evidence **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: The project is explicitly named 'Rosebud Open-Pit, Heap-Leach Project' and the test work is aimed at defining recovery characteristics for this route. Evidence · text > Rosebud Open-Pit Heap-Leach Project **Bench Scale Only** Polarity: negative Definition: Only preliminary bench tests completed — no locked-cycle or pilot work. Why it applies: The document reports 'initial bottle roll test results' and 'cyanide shake tests', which are bench-scale tests, with column leach tests planned for the future. Evidence · text > initial bottle roll test results **Multi-Domain Tested** Polarity: positive Definition: Variability across ore domains \(oxide, transition, fresh\) has been addressed. Why it applies: The tests were conducted on 'multiple host rock types and alteration styles from both oxidized and fresh rock' and 'five intervals in three metallurgical drill holes'. Evidence · text > multiple host rock types and alteration styles from both oxidized and fresh rock **Refractory Ore** Polarity: negative Definition: Ore requires oxidation/pressure treatment before recovery — a processing and recovery risk. Why it applies: Fresh rock material showed poor recoveries, and 'Roasting the BG26-008 material resulted in over 100% estimated recovery, indicating some characteristic of the sulfides in that material is slowing or preventing leaching of precious metals'. Evidence · text > Roasting the BG26-008 material resulted in over 100% estimated recovery, indicating some characteristic of the sulfides in that material is slowing or preventing leaching of precious metals **Free Milling** Polarity: positive Definition: Simple, clean ore amenable to standard processing without oxidation. Why it applies: Standard preg-robbing shake tests demonstrated non preg-robbing material in all samples, consistent with the lack of carbonate rocks in drill core and nil organic carbon in all samples. Evidence · text > Standard preg-robbing shake tests demonstrated non preg-robbing material in all samples, consistent with the lack of carbonate rocks in drill core and nil organic carbon in all samples. **Deleterious Elements Present** Polarity: negative Story-specific tag Definition: A source-stated penalty, refractory or recovery concern in the fact's scope. Element detection alone, including measured elements explicitly below penalty thresholds, does not trigger this tag. Respect negation and retain a separately stated concern even when another risk is explicitly absent. Why it applies: Analysis demonstrated low levels of mercury and copper, which in concentration can negatively impact leach efficiency, though they were not problematic in these samples. Evidence · text > Analysis also demonstrated low levels of mercury and copper, which in concentration can negatively impact leach efficiency. **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: the document describes a mill\_cil route \("CIL"\) **POX/BIOX Route** Polarity: neutral Definition: Pressure or bio-oxidation for refractory ore — high CAPEX and OPEX. Why it applies: the document describes a pox\_biox route \("roasting"\) ## Extracted facts Stored fact records: 52. Some facts used in scoring do not have a stored record. ## Metallurgical Results (52) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-0) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-002 dacite lapilli tuff 130' - 180' fresh - Grind P80: 50000 µm - Leach Time: 336 hours #### Recovery - Recovery: 48 % - Recovery Basis: actual\_test - Head Grade: 1.743 - Head Grade Unit: g/t - Tailings Grade: 0.913 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.06 kg/t - Lime: 1 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak gold recovery at a coarse grind, indicating challenges for heap leaching this material. - Negative factor: Recovery is weak for gold in fresh rock at this grind size for a heap leach scenario. Evidence · table > 48 % Context: 1.743 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-1) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-002 dacite lapilli tuff 130' - 180' fresh - Grind P80: 50000 µm - Leach Time: 336 hours #### Recovery - Recovery: 31 % - Recovery Basis: actual\_test - Head Grade: 8.07 - Head Grade Unit: g/t - Tailings Grade: 5.55 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.06 kg/t - Lime: 1 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak silver recovery at a coarse grind, indicating challenges for heap leaching this material. - Negative factor: Recovery is weak for silver in fresh rock at this grind size for a heap leach scenario. Evidence · table > 31 % Context: 8.07 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 31% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-2) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-002 dacite lapilli tuff 130' - 180' fresh - Grind P80: 25000 µm - Leach Time: 336 hours #### Recovery - Recovery: 58 % - Recovery Basis: actual\_test - Head Grade: 0.764 - Head Grade Unit: g/t - Tailings Grade: 0.324 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.12 kg/t - Lime: 1 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows moderate gold recovery at a finer grind, still indicating challenges for heap leaching this material. - Negative factor: Recovery is moderate for gold in fresh rock at this grind size for a heap leach scenario. Evidence · table > 58 % Context: 0.764 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-3) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-002 dacite lapilli tuff 130' - 180' fresh - Grind P80: 25000 µm - Leach Time: 336 hours #### Recovery - Recovery: 34 % - Recovery Basis: actual\_test - Head Grade: 4.33 - Head Grade Unit: g/t - Tailings Grade: 2.86 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.12 kg/t - Lime: 1 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak silver recovery at a finer grind, indicating challenges for heap leaching this material. - Negative factor: Recovery is weak for silver in fresh rock at this grind size for a heap leach scenario. Evidence · table > 34 % Context: 4.33 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 34% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-4) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-002 dacite lapilli tuff 130' - 180' fresh - Grind P80: 9500 µm - Leach Time: 336 hours #### Recovery - Recovery: 39 % - Recovery Basis: actual\_test - Head Grade: 1.665 - Head Grade Unit: g/t - Tailings Grade: 1.013 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.24 kg/t - Lime: 1 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak gold recovery even at a finer grind, suggesting inherent challenges for heap leaching this material. - Negative factor: Recovery is weak for gold in fresh rock even at a finer grind size for a heap leach scenario. Evidence · table > 39 % Context: 1.665 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 39% is below the weak band \(45%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-5) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-002 dacite lapilli tuff 130' - 180' fresh - Grind P80: 9500 µm - Leach Time: 336 hours #### Recovery - Recovery: 27 % - Recovery Basis: actual\_test - Head Grade: 6.13 - Head Grade Unit: g/t - Tailings Grade: 4.46 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.24 kg/t - Lime: 1 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak silver recovery even at a finer grind, suggesting inherent challenges for heap leaching this material. - Negative factor: Recovery is weak for silver in fresh rock even at a finer grind size for a heap leach scenario. Evidence · table > 27 % Context: 6.13 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 27% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-6) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-002 dacite lapilli tuff 130' - 180' fresh \(Pulverized\) - Leach Time: 96 hours #### Recovery - Recovery: 85 % - Recovery Basis: actual\_test - Head Grade: 0.447 - Head Grade Unit: g/t - Tailings Grade: 0.066 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.19 kg/t - Lime: 1.75 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Strong gold recovery from pulverized fresh rock indicates good liberation at very fine grind, but this is not applicable to heap leach processing. - Positive factor: Strong gold recovery achieved with pulverized material, indicating good liberation at very fine grind. - Negative factor: Pulverized grind is not representative of heap leach conditions. Evidence · table > 85 % Context: 0.447 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 85% is at or above the exceptional band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-7) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-002 dacite lapilli tuff 130' - 180' fresh \(Pulverized\) - Leach Time: 96 hours #### Recovery - Recovery: 53 % - Recovery Basis: actual\_test - Head Grade: 3.85 - Head Grade Unit: g/t - Tailings Grade: 1.83 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.19 kg/t - Lime: 1.75 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Moderate silver recovery from pulverized fresh rock indicates some liberation challenges even at very fine grind, and is not applicable to heap leach processing. - Negative factor: Recovery is moderate for silver even with pulverized material, suggesting some challenges. Evidence · table > 53 % Context: 3.85 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 53% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-8) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 95' - 145' oxide - Grind P80: 50000 µm - Leach Time: 336 hours #### Recovery - Recovery: 29 % - Recovery Basis: actual\_test - Head Grade: 1.039 - Head Grade Unit: g/t - Tailings Grade: 0.738 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.09 kg/t - Lime: 3.75 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on oxide material shows weak gold recovery at a coarse grind, indicating potential issues with liberation or kinetics at this size. - Negative factor: Recovery is weak for gold in oxide material at this coarse grind size for a heap leach scenario. Evidence · table > 29 % Context: 1.039 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 29% is below the weak band \(45%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-9) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 95' - 145' oxide - Grind P80: 50000 µm - Leach Time: 336 hours #### Recovery - Recovery: 71 % - Recovery Basis: actual\_test - Head Grade: 4.55 - Head Grade Unit: g/t - Tailings Grade: 1.3 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.09 kg/t - Lime: 3.75 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on oxide material shows strong silver recovery at a coarse grind, which is positive for heap leach potential. - Positive factor: Strong silver recovery for oxide material at a coarse grind size is positive for heap leaching. Evidence · table > 71 % Context: 4.55 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 71% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-10) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 95' - 145' oxide - Grind P80: 25000 µm - Leach Time: 336 hours #### Recovery - Recovery: 81 % - Recovery Basis: actual\_test - Head Grade: 0.301 - Head Grade Unit: g/t - Tailings Grade: 0.058 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.13 kg/t - Lime: 4 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on oxide material shows strong gold recovery at a 25mm crush, which is highly positive for heap leach potential. - Positive factor: Strong gold recovery for oxide material at a 25mm crush is very positive for heap leaching. Evidence · table > 81 % Context: 0.301 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 81% is at or above the exceptional band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-11) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 95' - 145' oxide - Grind P80: 25000 µm - Leach Time: 336 hours #### Recovery - Recovery: 65 % - Recovery Basis: actual\_test - Head Grade: 2.62 - Head Grade Unit: g/t - Tailings Grade: 0.92 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.13 kg/t - Lime: 4 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on oxide material shows moderate to strong silver recovery at a 25mm crush, which is positive for heap leach potential. - Positive factor: Moderate to strong silver recovery for oxide material at a 25mm crush is positive for heap leaching. Evidence · table > 65 % Context: 2.62 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 65% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-12) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 95' - 145' oxide - Grind P80: 9500 µm - Leach Time: 336 hours #### Recovery - Recovery: 77 % - Recovery Basis: actual\_test - Head Grade: 0.299 - Head Grade Unit: g/t - Tailings Grade: 0.07 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.2 kg/t - Lime: 5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on oxide material shows strong gold recovery at a finer grind, which is positive for heap leach potential. - Positive factor: Strong gold recovery for oxide material at a finer grind is positive for heap leaching. Evidence · table > 77 % Context: 0.299 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 77% is at or above the exceptional band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-13) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 95' - 145' oxide - Grind P80: 9500 µm - Leach Time: 336 hours #### Recovery - Recovery: 58 % - Recovery Basis: actual\_test - Head Grade: 4.68 - Head Grade Unit: g/t - Tailings Grade: 1.97 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.2 kg/t - Lime: 5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on oxide material shows moderate silver recovery at a finer grind, which is positive for heap leach potential. - Positive factor: Moderate silver recovery for oxide material at a finer grind is positive for heap leaching. Evidence · table > 58 % Context: 4.68 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 58% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-14) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 95' - 145' oxide \(Pulverized\) - Leach Time: 96 hours #### Recovery - Recovery: 87 % - Recovery Basis: actual\_test - Head Grade: 0.328 - Head Grade Unit: g/t - Tailings Grade: 0.044 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 1.72 kg/t - Lime: 4.75 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Strong gold recovery from pulverized oxide material indicates good liberation at very fine grind, but this is not applicable to heap leach processing. - Positive factor: Strong gold recovery achieved with pulverized material, indicating good liberation at very fine grind. - Negative factor: Pulverized grind is not representative of heap leach conditions. Evidence · table > 87 % Context: 0.328 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 87% is at or above the exceptional band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-15) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 95' - 145' oxide \(Pulverized\) - Leach Time: 96 hours #### Recovery - Recovery: 80 % - Recovery Basis: actual\_test - Head Grade: 3.51 - Head Grade Unit: g/t - Tailings Grade: 0.71 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 1.72 kg/t - Lime: 4.75 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Strong silver recovery from pulverized oxide material indicates good liberation at very fine grind, but this is not applicable to heap leach processing. - Positive factor: Strong silver recovery achieved with pulverized material, indicating good liberation at very fine grind. - Negative factor: Pulverized grind is not representative of heap leach conditions. Evidence · table > 80 % Context: 3.51 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-16) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 195' - 245' oxide - Grind P80: 50000 µm - Leach Time: 336 hours #### Recovery - Recovery: 60 % - Recovery Basis: actual\_test - Head Grade: 0.2 - Head Grade Unit: g/t - Tailings Grade: 0.079 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.07 kg/t - Lime: 4.5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on oxide material shows moderate gold recovery at a coarse grind, which is positive for heap leach potential. - Positive factor: Moderate gold recovery for oxide material at a coarse grind size is positive for heap leaching. Evidence · table > 60 % Context: 0.200 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-17) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 195' - 245' oxide - Grind P80: 50000 µm - Leach Time: 336 hours #### Recovery - Recovery: 49 % - Recovery Basis: actual\_test - Head Grade: 3.69 - Head Grade Unit: g/t - Tailings Grade: 1.89 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.07 kg/t - Lime: 4.5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on oxide material shows weak silver recovery at a coarse grind, indicating potential issues with liberation or kinetics at this size. - Negative factor: Recovery is weak for silver in oxide material at this coarse grind size for a heap leach scenario. Evidence · table > 49 % Context: 3.69 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 49% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-18) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 195' - 245' oxide - Grind P80: 25000 µm - Leach Time: 336 hours #### Recovery - Recovery: 65 % - Recovery Basis: actual\_test - Head Grade: 0.211 - Head Grade Unit: g/t - Tailings Grade: 0.074 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.1 kg/t - Lime: 5.5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on oxide material shows moderate to strong gold recovery at a 25mm crush, which is positive for heap leach potential. - Positive factor: Moderate to strong gold recovery for oxide material at a 25mm crush is positive for heap leaching. Evidence · table > 65 % Context: 0.211 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-19) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 195' - 245' oxide - Grind P80: 25000 µm - Leach Time: 336 hours #### Recovery - Recovery: 61 % - Recovery Basis: actual\_test - Head Grade: 4.88 - Head Grade Unit: g/t - Tailings Grade: 1.91 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.1 kg/t - Lime: 5.5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on oxide material shows moderate to strong silver recovery at a 25mm crush, which is positive for heap leach potential. - Positive factor: Moderate to strong silver recovery for oxide material at a 25mm crush is positive for heap leaching. Evidence · table > 61 % Context: 4.88 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 61% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-20) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 195' - 245' oxide - Grind P80: 9500 µm - Leach Time: 336 hours #### Recovery - Recovery: 76 % - Recovery Basis: actual\_test - Head Grade: 0.181 - Head Grade Unit: g/t - Tailings Grade: 0.043 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.17 kg/t - Lime: 6.5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on oxide material shows strong gold recovery at a finer grind, which is positive for heap leach potential. - Positive factor: Strong gold recovery for oxide material at a finer grind is positive for heap leaching. Evidence · table > 76 % Context: 0.181 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 76% is at or above the exceptional band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-21) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 195' - 245' oxide - Grind P80: 9500 µm - Leach Time: 336 hours #### Recovery - Recovery: 72 % - Recovery Basis: actual\_test - Head Grade: 7.54 - Head Grade Unit: g/t - Tailings Grade: 2.11 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.17 kg/t - Lime: 6.5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on oxide material shows strong silver recovery at a finer grind, which is positive for heap leach potential. - Positive factor: Strong silver recovery for oxide material at a finer grind is positive for heap leaching. Evidence · table > 72 % Context: 7.54 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 72% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-22) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 195' - 245' oxide \(Pulverized\) - Leach Time: 96 hours #### Recovery - Recovery: 83 % - Recovery Basis: actual\_test - Head Grade: 0.135 - Head Grade Unit: g/t - Tailings Grade: 0.023 - Tailings Grade Unit: g/t #### Reagents - Lime: 7 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Strong gold recovery from pulverized oxide material indicates good liberation at very fine grind, but this is not applicable to heap leach processing. - Positive factor: Strong gold recovery achieved with pulverized material, indicating good liberation at very fine grind. - Negative factor: Pulverized grind is not representative of heap leach conditions. Evidence · table > 83 % Context: 0.135 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 83% is at or above the exceptional band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-23) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 195' - 245' oxide \(Pulverized\) - Leach Time: 96 hours #### Recovery - Recovery: 86 % - Recovery Basis: actual\_test - Head Grade: 5.3 - Head Grade Unit: g/t - Tailings Grade: 0.74 - Tailings Grade Unit: g/t #### Reagents - Lime: 7 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Strong silver recovery from pulverized oxide material indicates good liberation at very fine grind, but this is not applicable to heap leach processing. - Positive factor: Strong silver recovery achieved with pulverized material, indicating good liberation at very fine grind. - Negative factor: Pulverized grind is not representative of heap leach conditions. Evidence · table > 86 % Context: 5.30 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-24) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 295' - 345' fresh - Grind P80: 50000 µm - Leach Time: 336 hours #### Recovery - Recovery: 40 % - Recovery Basis: actual\_test - Head Grade: 0.152 - Head Grade Unit: g/t - Tailings Grade: 0.091 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.12 kg/t - Lime: 3.75 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak gold recovery at a coarse grind, indicating challenges for heap leaching this material. - Negative factor: Recovery is weak for gold in fresh rock at this coarse grind size for a heap leach scenario. Evidence · table > 40 % Context: 0.152 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 40% is below the weak band \(45%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-25) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 295' - 345' fresh - Grind P80: 50000 µm - Leach Time: 336 hours #### Recovery - Recovery: 41 % - Recovery Basis: actual\_test - Head Grade: 2.48 - Head Grade Unit: g/t - Tailings Grade: 1.47 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.12 kg/t - Lime: 3.75 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak silver recovery at a coarse grind, indicating challenges for heap leaching this material. - Negative factor: Recovery is weak for silver in fresh rock at this coarse grind size for a heap leach scenario. Evidence · table > 41 % Context: 2.48 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 41% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-26) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 295' - 345' fresh - Grind P80: 25000 µm - Leach Time: 336 hours #### Recovery - Recovery: 29 % - Recovery Basis: actual\_test - Head Grade: 0.125 - Head Grade Unit: g/t - Tailings Grade: 0.088 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.35 kg/t - Lime: 4 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak gold recovery at a finer grind, indicating significant challenges for heap leaching this material. - Negative factor: Recovery is weak for gold in fresh rock at this grind size for a heap leach scenario. Evidence · table > 29 % Context: 0.125 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 29% is below the weak band \(45%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-27) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 295' - 345' fresh - Grind P80: 25000 µm - Leach Time: 336 hours #### Recovery - Recovery: 45 % - Recovery Basis: actual\_test - Head Grade: 3.07 - Head Grade Unit: g/t - Tailings Grade: 1.68 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.35 kg/t - Lime: 4 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak silver recovery at a finer grind, indicating challenges for heap leaching this material. - Negative factor: Recovery is weak for silver in fresh rock at this grind size for a heap leach scenario. Evidence · table > 45 % Context: 3.07 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 45% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-28) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 295' - 345' fresh - Grind P80: 9500 µm - Leach Time: 336 hours #### Recovery - Recovery: 34 % - Recovery Basis: actual\_test - Head Grade: 0.179 - Head Grade Unit: g/t - Tailings Grade: 0.118 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.3 kg/t - Lime: 4.5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak gold recovery even at a finer grind, suggesting inherent challenges for heap leaching this material. - Negative factor: Recovery is weak for gold in fresh rock even at a finer grind size for a heap leach scenario. Evidence · table > 34 % Context: 0.179 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 34% is below the weak band \(45%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-29) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 295' - 345' fresh - Grind P80: 9500 µm - Leach Time: 336 hours #### Recovery - Recovery: 38 % - Recovery Basis: actual\_test - Head Grade: 3.37 - Head Grade Unit: g/t - Tailings Grade: 2.09 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.3 kg/t - Lime: 4.5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak silver recovery even at a finer grind, suggesting inherent challenges for heap leaching this material. - Negative factor: Recovery is weak for silver in fresh rock even at a finer grind size for a heap leach scenario. Evidence · table > 38 % Context: 3.37 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 38% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-30) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 295' - 345' fresh \(Pulverized\) - Leach Time: 96 hours #### Recovery - Recovery: 47 % - Recovery Basis: actual\_test - Head Grade: 0.133 - Head Grade Unit: g/t - Tailings Grade: 0.071 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 1.6 kg/t - Lime: 5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Weak gold recovery from pulverized fresh rock indicates significant liberation challenges even at very fine grind, and is not applicable to heap leach processing. - Negative factor: Recovery is weak for gold even with pulverized material, suggesting significant challenges. Evidence · table > 47 % Context: 0.133 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-31) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-007 dacite autobreccia 295' - 345' fresh \(Pulverized\) - Leach Time: 96 hours #### Recovery - Recovery: 58 % - Recovery Basis: actual\_test - Head Grade: 3.03 - Head Grade Unit: g/t - Tailings Grade: 1.26 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 1.6 kg/t - Lime: 5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Moderate silver recovery from pulverized fresh rock indicates some liberation challenges even at very fine grind, and is not applicable to heap leach processing. - Negative factor: Recovery is moderate for silver even with pulverized material, suggesting some challenges. Evidence · table > 58 % Context: 3.03 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 58% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-32) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-008 dacite lithic tuff 510' - 560' fresh - Grind P80: 50000 µm - Leach Time: 336 hours #### Recovery - Recovery: 22 % - Recovery Basis: actual\_test - Head Grade: 0.338 - Head Grade Unit: g/t - Tailings Grade: 0.262 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.21 kg/t - Lime: 2 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows very weak gold recovery at a coarse grind, indicating significant challenges for heap leaching this material. - Negative factor: Recovery is very weak for gold in fresh rock at this coarse grind size for a heap leach scenario. Evidence · table > 22 % Context: 0.338 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 22% is below the weak band \(45%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-33) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-008 dacite lithic tuff 510' - 560' fresh - Grind P80: 50000 µm - Leach Time: 336 hours #### Recovery - Recovery: 40 % - Recovery Basis: actual\_test - Head Grade: 9.42 - Head Grade Unit: g/t - Tailings Grade: 5.64 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.21 kg/t - Lime: 2 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak silver recovery at a coarse grind, indicating challenges for heap leaching this material. - Negative factor: Recovery is weak for silver in fresh rock at this coarse grind size for a heap leach scenario. Evidence · table > 40 % Context: 9.42 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 40% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-34) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-008 dacite lithic tuff 510' - 560' fresh - Grind P80: 25000 µm - Leach Time: 336 hours #### Recovery - Recovery: 20 % - Recovery Basis: actual\_test - Head Grade: 0.394 - Head Grade Unit: g/t - Tailings Grade: 0.317 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.21 kg/t - Lime: 2 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows very weak gold recovery at a finer grind, indicating significant challenges for heap leaching this material. - Negative factor: Recovery is very weak for gold in fresh rock at this grind size for a heap leach scenario. Evidence · table > 20 % Context: 0.394 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 20% is below the weak band \(45%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-35) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-008 dacite lithic tuff 510' - 560' fresh - Grind P80: 25000 µm - Leach Time: 336 hours #### Recovery - Recovery: 42 % - Recovery Basis: actual\_test - Head Grade: 7.18 - Head Grade Unit: g/t - Tailings Grade: 4.18 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.21 kg/t - Lime: 2 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows weak silver recovery at a finer grind, indicating challenges for heap leaching this material. - Negative factor: Recovery is weak for silver in fresh rock at this grind size for a heap leach scenario. Evidence · table > 42 % Context: 7.18 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 42% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-36) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-008 dacite lithic tuff 510' - 560' fresh - Grind P80: 9500 µm - Leach Time: 336 hours #### Recovery - Recovery: 20 % - Recovery Basis: actual\_test - Head Grade: 0.459 - Head Grade Unit: g/t - Tailings Grade: 0.367 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.21 kg/t - Lime: 2 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows very weak gold recovery even at a finer grind, suggesting inherent challenges for heap leaching this material. - Negative factor: Recovery is very weak for gold in fresh rock even at a finer grind size for a heap leach scenario. Evidence · table > 20 % Context: 0.459 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 20% is below the weak band \(45%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-37) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-008 dacite lithic tuff 510' - 560' fresh - Grind P80: 9500 µm - Leach Time: 336 hours #### Recovery - Recovery: 59 % - Recovery Basis: actual\_test - Head Grade: 7.81 - Head Grade Unit: g/t - Tailings Grade: 3.19 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.21 kg/t - Lime: 2 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Initial bottle roll test on fresh rock shows moderate silver recovery even at a finer grind, suggesting some challenges for heap leaching this material. - Negative factor: Recovery is moderate for silver in fresh rock even at a finer grind size for a heap leach scenario. Evidence · table > 59 % Context: 7.81 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 59% is below the weak band \(75%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-38) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-008 dacite lithic tuff 510' - 560' fresh \(Pulverized\) - Leach Time: 96 hours #### Recovery - Recovery: 29 % - Recovery Basis: actual\_test - Head Grade: 0.599 - Head Grade Unit: g/t - Tailings Grade: 0.425 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.51 kg/t - Lime: 2.5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Weak gold recovery from pulverized fresh rock indicates significant liberation challenges even at very fine grind, and is not applicable to heap leach processing. - Negative factor: Recovery is weak for gold even with pulverized material, suggesting significant challenges. Evidence · table > 29 % Context: 0.599 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 29% is below the weak band \(45%\) ### bottle roll [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-39) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: bottle roll - Processing Route: heap leach \(bottle roll test\) - Sample: BG26-008 dacite lithic tuff 510' - 560' fresh \(Pulverized\) - Leach Time: 96 hours #### Recovery - Recovery: 62 % - Recovery Basis: actual\_test - Head Grade: 11.93 - Head Grade Unit: g/t - Tailings Grade: 4.49 - Tailings Grade Unit: g/t #### Reagents - Cyanide: 0.51 kg/t - Lime: 2.5 kg/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Moderate silver recovery from pulverized fresh rock indicates some liberation challenges even at very fine grind, and is not applicable to heap leach processing. - Negative factor: Recovery is moderate for silver even with pulverized material, suggesting some challenges. Evidence · table > 62 % Context: 11.93 #### Tags used in scoring **Heap Leach Route** Polarity: neutral Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected. Why it applies: processing\_route matches the heap\_leach signal **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 62% is below the weak band \(75%\) ### cyanide shake test [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-40) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: cyanide shake test - Processing Route: cyanide shake test - Sample: BG26-002 130' - 180' #### Recovery - Recovery: 86 % - Recovery Basis: actual\_test - Head Grade: 0.533 - Head Grade Unit: g/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Cyanide shake test shows strong gold extraction, confirming the material's leachability when finely ground. - Positive factor: Strong gold extraction in cyanide shake test confirms good leachability under ideal conditions. Evidence · table > 86% Context: 0.533 ### cyanide shake test [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-41) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: cyanide shake test - Processing Route: cyanide shake test - Sample: BG26-002 130' - 180' #### Recovery - Recovery: 78 % - Recovery Basis: actual\_test - Head Grade: 2.91 - Head Grade Unit: g/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Cyanide shake test shows strong silver extraction, confirming the material's leachability when finely ground. - Positive factor: Strong silver extraction in cyanide shake test confirms good leachability under ideal conditions. Evidence · table > 78% Context: 2.91 ### cyanide shake test [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-42) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: cyanide shake test - Processing Route: cyanide shake test - Sample: BG26-007 95' - 145' #### Recovery - Recovery: 55 % - Recovery Basis: actual\_test - Head Grade: 0.182 - Head Grade Unit: g/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Cyanide shake test shows moderate gold extraction, indicating some challenges for leachability even when finely ground. - Negative factor: Moderate gold extraction in cyanide shake test suggests some limitations even under ideal conditions. Evidence · table > 55% Context: 0.182 #### Tags used in scoring **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 55% is below the weak band \(80%\) ### cyanide shake test [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-43) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: cyanide shake test - Processing Route: cyanide shake test - Sample: BG26-007 95' - 145' #### Recovery - Recovery: 84 % - Recovery Basis: actual\_test - Head Grade: 1.41 - Head Grade Unit: g/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Cyanide shake test shows strong silver extraction, confirming the material's leachability when finely ground. - Positive factor: Strong silver extraction in cyanide shake test confirms good leachability under ideal conditions. Evidence · table > 84% Context: 1.41 ### cyanide shake test [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-44) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: cyanide shake test - Processing Route: cyanide shake test - Sample: BG26-007 195' - 245' #### Recovery - Recovery: 28 % - Recovery Basis: actual\_test - Head Grade: 0.213 - Head Grade Unit: g/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Cyanide shake test shows weak gold extraction, indicating significant challenges for leachability even when finely ground. - Negative factor: Weak gold extraction in cyanide shake test indicates significant challenges even under ideal conditions. Evidence · table > 28% Context: 0.213 #### Tags used in scoring **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 28% is below the weak band \(80%\) ### cyanide shake test [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-45) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: cyanide shake test - Processing Route: cyanide shake test - Sample: BG26-007 195' - 245' #### Recovery - Recovery: 96 % - Recovery Basis: actual\_test - Head Grade: 4.39 - Head Grade Unit: g/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Cyanide shake test shows exceptional silver extraction, confirming the material's excellent leachability when finely ground. - Positive factor: Exceptional silver extraction in cyanide shake test confirms excellent leachability under ideal conditions. Evidence · table > 96% Context: 4.39 #### Tags used in scoring **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 96% is at or above the exceptional band \(90%\) ### cyanide shake test [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-46) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: cyanide shake test - Processing Route: cyanide shake test - Sample: BG26-007 295' - 345' #### Recovery - Recovery: 77 % - Recovery Basis: actual\_test - Head Grade: 0.105 - Head Grade Unit: g/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Cyanide shake test shows strong gold extraction, confirming the material's leachability when finely ground. - Positive factor: Strong gold extraction in cyanide shake test confirms good leachability under ideal conditions. Evidence · table > 77% Context: 0.105 #### Tags used in scoring **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 77% is below the weak band \(80%\) ### cyanide shake test [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-47) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: cyanide shake test - Processing Route: cyanide shake test - Sample: BG26-007 295' - 345' #### Recovery - Recovery: 59 % - Recovery Basis: actual\_test - Head Grade: 2.61 - Head Grade Unit: g/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Cyanide shake test shows moderate silver extraction, indicating some challenges for leachability even when finely ground. - Negative factor: Moderate silver extraction in cyanide shake test suggests some limitations even under ideal conditions. Evidence · table > 59% Context: 2.61 #### Tags used in scoring **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 59% is below the weak band \(75%\) ### cyanide shake test [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-48) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: cyanide shake test - Processing Route: cyanide shake test - Sample: BG26-008 510' - 560' #### Recovery - Recovery: 27 % - Recovery Basis: actual\_test - Head Grade: 0.525 - Head Grade Unit: g/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Cyanide shake test shows weak gold extraction, indicating significant challenges for leachability even when finely ground. - Negative factor: Weak gold extraction in cyanide shake test indicates significant challenges even under ideal conditions. Evidence · table > 27% Context: 0.525 #### Tags used in scoring **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 27% is below the weak band \(80%\) ### cyanide shake test [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-49) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: cyanide shake test - Processing Route: cyanide shake test - Sample: BG26-008 510' - 560' #### Recovery - Recovery: 76 % - Recovery Basis: actual\_test - Head Grade: 9.81 - Head Grade Unit: g/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Cyanide shake test shows strong silver extraction, confirming the material's leachability when finely ground. - Positive factor: Strong silver extraction in cyanide shake test confirms good leachability under ideal conditions. Evidence · table > 76% Context: 9.81 ### cyanide shake test [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-50) Rosebud Open-Pit, Heap-Leach Project · gold #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: gold - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: cyanide shake test - Processing Route: cyanide shake test \(roast pre-treatment\) - Sample: BG26-008 510' - 560' \(Roast\) #### Recovery - Recovery: 100 % - Recovery Basis: actual\_test - Head Grade: 0.525 - Head Grade Unit: g/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Exceptional gold extraction after roasting confirms that the material is refractory but amenable to roasting, providing a potential processing solution despite added complexity. - Positive factor: Exceptional gold extraction after roasting indicates that roasting effectively addresses the refractory nature of the material. - Negative factor: Roasting adds complexity and cost to the processing flowsheet. Evidence · table > <100% Context: 0.525 #### Tags used in scoring **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: 100% is at or above the exceptional band \(95%\) ### cyanide shake test [Link to this fact](https://atlas-extractions.minestarters.com/news/blossom-gold-reports-initial-metallurgical-results-and-engagement-of-metallurgic--7d7c1120-e2a2-4a2b-a5f9-021f2a6688c5#fact-metallurgical-facts-51) Rosebud Open-Pit, Heap-Leach Project · silver #### Identity - Project: Rosebud Open-Pit, Heap-Leach Project - Commodity: silver - Region: usa\_nv - Reported Region: Pershing County, Nevada - Ticker: BGAU #### Test Work - Program Status: preliminary - Test Type: cyanide shake test - Processing Route: cyanide shake test \(roast pre-treatment\) - Sample: BG26-008 510' - 560' \(Roast\) #### Recovery - Recovery: 22 % - Recovery Basis: actual\_test - Head Grade: 9.81 - Head Grade Unit: g/t #### Lab - Laboratory: Kappes, Cassiday and Associates of Reno \(KCA\) - Consultant: Jim Wickens #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-08-27T00:00:00.000Z Reasoning: Very weak silver extraction after roasting suggests that roasting negatively impacts silver recovery, which is a significant concern for polymetallic processing. - Negative factor: Very weak silver extraction after roasting indicates that roasting is detrimental to silver recovery for this material. Evidence · table > 22% Context: 9.81 #### Tags used in scoring **Low Recovery** Polarity: negative Definition: Recovery below the weak band for the commodity and processing route. Why it applies: 22% is below the weak band \(75%\) ## How Atlas produces this analysis Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.