Bayhorse Silver Submits Silver/Copper/Antimony Concentrate Samples From Its Bayhorse Silver Mine To Allihies Engineering For Antimony Leach Testing
Original announcement by tmx on
- Company
- Bayhorse Silver Inc
- Ticker
- BHS
- Exchange
- TSX
- Region
- Oregon, USA
- Primary commodity
- Silver
- Secondary commodities
- Copper, Antimony, Zinc, Gold, Lead
- Document categories
- Metallurgy, Other
- Extracted
- 2026-09-13 14:51:13 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Bayhorse Silver has submitted flotation concentrate samples from its Bayhorse Silver Mine to Allihies Engineering for proprietary antimony leaching testing. The testing aims to determine if the company's refractory silver-copper-antimony mineralization can be processed more effectively than previous methods, potentially unlocking significant value from critical minerals.
Reasoning: The company is testing a new hydrometallurgical route to address refractory mineralization, which could significantly improve recoveries and economic viability of the silver-copper-antimony project.
Positive factors
- Potential to unlock value from refractory antimony/silver/copper/zinc mineralization
- Proprietary leaching technology (ASL) shows high extraction rates (99% Sb) in similar deposits
- Strategic/critical mineral status for all target metals in the US
- Potential to significantly improve historical cost-benefit calculations
Negative factors
- Mineralization is refractory in nature, presenting processing challenges
- Metallurgical testing is currently in the sample submission stage, results are not yet confirmed for this specific site
- Refractory processing typically requires higher energy inputs
Facts used in scoring: 4
Classification and evidence
Refractory Orenegative
Ore requires oxidation/pressure treatment before recovery — a processing and recovery risk.
Why it applies: The document explicitly states the dominant mineralization is refractory in nature.
Evidence · text
“The dominant Bayhorse mineralization is primarily tetrahedrite... and is refractory in nature.”
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The company mentions a permitted mill in Payette, Idaho and standard flotation processing.
Evidence · text
“to ship to our permitted Mill in Payette, Idaho... and standard flotation processing facility”
Single Domain Onlynegative
Testing limited to one composite or domain — representativeness not established.
Why it applies: only one composite was tested
Extracted facts
Stored fact records: 4. Some facts used in scoring do not have a stored record.
Metallurgical Results (4)
Fact 1silverRecovery: 86.7 %Head Grade: 985Head Grade Unit: g/tHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- silver
- Region
- oregon, usa
- Reported Region
- Oregon, USA
- Ticker
- BHS
Test Work
- Sample
- 2020 Ore-Sorter select sample
Recovery
- Recovery
- 86.7 %
- Head Grade
- 985
- Head Grade Unit
- g/t
- Conc. Grade
- 9700
- Conc. Grade Unit
- g/t
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2020-01-01T00:00:00.000Z
Dates
- Event date
- 2025-10-16T00:00:00.000Z
Reasoning: Historical metallurgical test result from 2020 showing high silver recovery.
Positive factors
- High head grade and concentrate grade
Evidence · text
“In 2020, the Company conducted a metallurgical test on a 200 kg mined sample... head grade of 985 g/t (28.8 oz/t) silver... silver/copper concentrate recoveries of 86.7%, resulting in a silver grade of 9,700 g/t”
Fact 2copperRecovery: 86.7 %Head Grade: 1.16Head Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- copper
- Region
- oregon, usa
- Reported Region
- Oregon, USA
- Ticker
- BHS
Test Work
- Sample
- 2020 Ore-Sorter select sample
Recovery
- Recovery
- 86.7 %
- Head Grade
- 1.16
- Head Grade Unit
- %
- Conc. Grade
- 10
- Conc. Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2020-01-01T00:00:00.000Z
Dates
- Event date
- 2025-10-16T00:00:00.000Z
Reasoning: Historical metallurgical test result from 2020 showing copper recovery.
Positive factors
- High concentrate grade
Evidence · text
“head grade of 985 g/t (28.8 oz/t) silver, 1.16% copper... silver/copper concentrate recoveries of 86.7%, resulting in... 10% copper”
Fact 3zincHead Grade: 1.87Head Grade Unit: %Historical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- zinc
- Region
- oregon, usa
- Reported Region
- Oregon, USA
- Ticker
- BHS
Test Work
- Sample
- 2020 Ore-Sorter select sample
Recovery
- Head Grade
- 1.87
- Head Grade Unit
- %
- Conc. Grade
- 18
- Conc. Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2020-01-01T00:00:00.000Z
Dates
- Event date
- 2025-10-16T00:00:00.000Z
Reasoning: Historical metallurgical test result from 2020 showing zinc in concentrate.
Positive factors
- High concentrate grade
Evidence · text
“1.87% zinc... resulting in... 18% zinc”
Fact 4antimonyHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Commodity
- antimony
- Region
- oregon, usa
- Reported Region
- Oregon, USA
- Ticker
- BHS
Test Work
- Sample
- 2020 Ore-Sorter select sample
Recovery
- Conc. Grade
- 12
- Conc. Grade Unit
- %
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2020-01-01T00:00:00.000Z
Dates
- Event date
- 2025-10-16T00:00:00.000Z
Reasoning: Historical metallurgical test result from 2020 showing antimony in concentrate.
Positive factors
- Significant antimony content in concentrate
Evidence · text
“1.87% zinc, The testing achieved silver/copper concentrate recoveries of 86.7%, resulting in... 12% antimony.”
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.