# Additional Critical Mineral Potential Confirmed with 95.9% Cesium and 86.9% Rubidium Extraction at Bonnie Claire Lithium Project Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/additional-critical-mineral-potential-confirmed-with-95-9-cesium-and-86-9-rubidi--f8be4a93-fad1-4018-86b9-274d3b2f1ba3 Original source: https://money.tmx.com/en/quote/NVLH/news/8554293243480290/additional-critical-mineral-potential-confirmed-with-95-9-cesium-and-86-9-rubidi Publisher: tmx Original announcement: 2026-03-25T11:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Nevada Lithium Resources Inc. - Ticker: NVLH - Exchange: TSX - Region: Nevada - Primary commodity: Lithium - Secondary commodities: Cesium, Rubidium, Boron - Document categories: Metallurgy - Extracted: 2026-09-16 15:01:13 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Nevada Lithium Resources Inc. has confirmed high extraction rates for cesium \(95.9%\) and rubidium \(86.9%\) from its Bonnie Claire Lithium Project using existing metallurgical flowsheet conditions. The company also successfully completed proof-of-concept ion exchange tests for these critical minerals and is evaluating further optimization and rare earth element recovery potential. Reasoning: The metallurgical results demonstrate significant value-add potential by confirming high recovery of cesium and rubidium using the existing lithium processing baseline. - Positive factor: High extraction rates for critical minerals \(Cs and Rb\) - Positive factor: Successful proof-of-concept for ion exchange recovery - Positive factor: Confirmation that Cs and Rb are leachable under existing lithium flowsheet conditions Facts used in scoring: 3 ## Classification and evidence **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: Cesium recovery of 95.9% is exceptional for the context of adding critical minerals to a lithium flowsheet. Evidence · text > achieved extractions of up to 95.9% for Cs and 86.9% for Rb **QA/QC Disclosed** Polarity: positive Story-specific tag Definition: Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods \(blanks, standards, duplicates\). Why it applies: The release mentions internal standards, blanks, and duplicates used by the laboratory. Evidence · text > Quality assurance and quality control measures applied by the Laboratory include internal standards, blanks and duplicates **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: The process involves acid leaching and ion exchange, consistent with a mill/concentrator flowsheet. Evidence · text > The current flowsheet confirmed; Cs and Rb are leachable from the lithium clay ore under the existing baseline conditions **Single Domain Only** Polarity: negative Definition: Testing limited to one composite or domain — representativeness not established. Why it applies: only one composite was tested ## Extracted facts Stored fact records: 3. Some facts used in scoring do not have a stored record. ## Metallurgical Results (3) ### acid leach [Link to this fact](https://atlas-extractions.minestarters.com/news/additional-critical-mineral-potential-confirmed-with-95-9-cesium-and-86-9-rubidi--f8be4a93-fad1-4018-86b9-274d3b2f1ba3#fact-metallurgical-facts-0) Bonnie Claire Lithium Project · cesium #### Identity - Project: Bonnie Claire Lithium Project - Commodity: cesium - Region: usa\_nv - Reported Region: Nevada - Ticker: NVLH #### Test Work - Program Status: detailed - Test Type: acid leach - Sample: high-grade composite sample - Leach Time: 4 hours #### Recovery - Recovery: 95.9 % - Recovery Basis: actual\_test - Head Grade: 226 - Head Grade Unit: mg/kg #### Reagents - Acid: 700 kg/t #### Lab - Laboratory: Kemetco Research Inc. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-25T00:00:00.000Z Reasoning: 95.9% recovery of cesium is a strong technical result for a byproduct mineral. - Positive factor: Very high recovery rate Evidence · text > achieved extractions of up to 95.9% for Cs #### Tags used in scoring **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ### acid leach [Link to this fact](https://atlas-extractions.minestarters.com/news/additional-critical-mineral-potential-confirmed-with-95-9-cesium-and-86-9-rubidi--f8be4a93-fad1-4018-86b9-274d3b2f1ba3#fact-metallurgical-facts-1) Bonnie Claire Lithium Project · rubidium #### Identity - Project: Bonnie Claire Lithium Project - Commodity: rubidium - Region: usa\_nv - Reported Region: Nevada - Ticker: NVLH #### Test Work - Program Status: detailed - Test Type: acid leach - Sample: high-grade composite sample - Leach Time: 4 hours #### Recovery - Recovery: 86.9 % - Recovery Basis: actual\_test - Head Grade: 297 - Head Grade Unit: mg/kg #### Reagents - Acid: 700 kg/t #### Lab - Laboratory: Kemetco Research Inc. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-25T00:00:00.000Z Reasoning: 86.9% recovery of rubidium confirms its viability as a byproduct. - Positive factor: Strong recovery rate Evidence · text > achieved extractions of up to 95.9% for Cs and 86.9% for Rb #### Tags used in scoring **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ### acid leach [Link to this fact](https://atlas-extractions.minestarters.com/news/additional-critical-mineral-potential-confirmed-with-95-9-cesium-and-86-9-rubidi--f8be4a93-fad1-4018-86b9-274d3b2f1ba3#fact-metallurgical-facts-2) Bonnie Claire Lithium Project · lithium #### Identity - Project: Bonnie Claire Lithium Project - Commodity: lithium - Region: usa\_nv - Reported Region: Nevada - Ticker: NVLH #### Test Work - Program Status: detailed - Test Type: acid leach - Sample: high-grade composite sample - Leach Time: 4 hours #### Recovery - Recovery: 98 % - Recovery Basis: actual\_test - Head Grade: 5055 - Head Grade Unit: mg/kg #### Reagents - Acid: 700 kg/t #### Lab - Laboratory: Kemetco Research Inc. #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-03-25T00:00:00.000Z Reasoning: Lithium recovery is consistent with previously reported high levels. - Positive factor: Consistent with previous results Evidence · text > comparable to 98% Lithium \(Li\) and 97% Boron \(B\) extraction obtained previously #### 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: 98% is at or above the exceptional band \(80%\) **Byproduct Commodity** Polarity: neutral Definition: The tested commodity is a byproduct rather than the primary economic driver. Why it applies: the release describes a byproduct credit ## 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.