CMC Reports on Impressive Metallurgical Tests on Potential Ore for the Gold Processing Mill in Bishop, California by North Bay Resources Inc.
Original announcement by tmx on
- Company
- CMC Metals Ltd.
- Ticker
- CMB
- Exchange
- TSX
- Region
- California
- Primary commodity
- Gold
- Secondary commodities
- Platinum, Silver
- Document categories
- Metallurgy
- Extracted
- 2026-08-22 19:09:37 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
CMC Metals reports successful preliminary metallurgical testing on ore from the Mt. Vernon Gold Mine, which is intended for processing at the Bishop Mill in California. The tests, using a gravity recovery circuit, produced high-grade gold, platinum, and silver concentrates, marking the first known discovery of platinum at the site.
Reasoning: The announcement reports highly positive preliminary metallurgical results including the first discovery of platinum at the Mt. Vernon Gold Mine, with high-grade gold concentrates.
Positive factors
- high-grade concentrate results
- first discovery of platinum at site
- confirmed viability of gravity recovery circuit
Negative factors
- preliminary testing scale
- unspecified recovery percentage
Facts used in scoring: 6
Classification and evidence
Free Millingpositive
Simple, clean ore amenable to standard processing without oxidation.
Why it applies: The ore is successfully processed using a basic gravity recovery circuit after ball milling.
Evidence · text
“confirmed the viability of extraction of gold, platinum, and silver using a basic grind and gravity recovery circuit”
Bench Scale Onlynegative
Only preliminary bench tests completed — no locked-cycle or pilot work.
Why it applies: The testing is described as preliminary metallurgical/brevity recovery testing.
Evidence · text
“preliminary metallurgical/brevity recovery testing”
Extracted facts
Stored fact records: 6. Some facts used in scoring do not have a stored record.
Metallurgical Results (6)
gravitygoldHead Grade: 11.95Head Grade Unit: oz/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- CMB
Test Work
- Program Status
- preliminary
- Test Type
- gravity
- Processing Route
- crushed in a ball mill to minus 60 mesh and run over a gravity recovery table
- Sample
- Sample I.D C#1MV
Recovery
- Recovery Basis
- unspecified
- Head Grade
- 11.95
- Head Grade Unit
- oz/t
Lab
- Laboratory
- Enviro-Chem Analytical Laboratory
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2024-08-27T00:00:00.000Z
Reasoning: 11.95 oz/t gold in concentrate is an extremely high-grade result.
Positive factors
- exceptionally high grade concentrate
Evidence · text
“Sample I.D C#1MV: returned assays of Gold 11.95 oz/t”
gravityplatinumHead Grade: 17.54Head Grade Unit: oz/tView all detailsHide details
Identity
- Commodity
- platinum
- Ticker
- CMB
Test Work
- Program Status
- preliminary
- Test Type
- gravity
- Processing Route
- crushed in a ball mill to minus 60 mesh and run over a gravity recovery table
- Sample
- Sample I.D C#1MV
Recovery
- Recovery Basis
- unspecified
- Head Grade
- 17.54
- Head Grade Unit
- oz/t
Lab
- Laboratory
- Enviro-Chem Analytical Laboratory
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2024-08-27T00:00:00.000Z
Reasoning: High grade platinum in concentrate and represents a new discovery for the mine.
Positive factors
- first known discovery of platinum at Mt. Vernon
Evidence · text
“Platinum 17.54 0z/t”
gravitysilverHead Grade: 7.79Head Grade Unit: oz/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- CMB
Test Work
- Program Status
- preliminary
- Test Type
- gravity
- Processing Route
- crushed in a ball mill to minus 60 mesh and run over a gravity recovery table
- Sample
- Sample I.D C#1MV
Recovery
- Recovery Basis
- unspecified
- Head Grade
- 7.79
- Head Grade Unit
- oz/t
Lab
- Laboratory
- Enviro-Chem Analytical Laboratory
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2024-08-27T00:00:00.000Z
Reasoning: Silver is reported as a byproduct in the concentrate.
Evidence · text
“and Silver 7.79”
gravitygoldHead Grade: 11.38Head Grade Unit: oz/tView all detailsHide details
Identity
- Commodity
- gold
- Ticker
- CMB
Test Work
- Program Status
- preliminary
- Test Type
- gravity
- Processing Route
- crushed in a ball mill to minus 60 mesh and run over a gravity recovery table
- Sample
- Sample I.D C#2MV
Recovery
- Recovery Basis
- unspecified
- Head Grade
- 11.38
- Head Grade Unit
- oz/t
Lab
- Laboratory
- Enviro-Chem Analytical Laboratory
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2024-08-27T00:00:00.000Z
Reasoning: 11.38 oz/t gold in concentrate is a very strong result.
Positive factors
- high-grade concentrate
Evidence · text
“Sample I.D C#2MV: returned assays of Gold 11.38 oz/t”
gravityplatinumHead Grade: 2.2Head Grade Unit: oz/tView all detailsHide details
Identity
- Commodity
- platinum
- Ticker
- CMB
Test Work
- Program Status
- preliminary
- Test Type
- gravity
- Processing Route
- crushed in a ball mill to minus 60 mesh and run over a gravity recovery table
- Sample
- Sample I.D C#2MV
Recovery
- Recovery Basis
- unspecified
- Head Grade
- 2.2
- Head Grade Unit
- oz/t
Lab
- Laboratory
- Enviro-Chem Analytical Laboratory
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2024-08-27T00:00:00.000Z
Reasoning: Confirms presence of platinum in the second sample.
Positive factors
- platinum discovery
Evidence · text
“Platinum 2.20 0z/t”
gravitysilverHead Grade: 5.59Head Grade Unit: oz/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- CMB
Test Work
- Program Status
- preliminary
- Test Type
- gravity
- Processing Route
- crushed in a ball mill to minus 60 mesh and run over a gravity recovery table
- Sample
- Sample I.D C#2MV
Recovery
- Recovery Basis
- unspecified
- Head Grade
- 5.59
- Head Grade Unit
- oz/t
Lab
- Laboratory
- Enviro-Chem Analytical Laboratory
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2024-08-27T00:00:00.000Z
Reasoning: Silver reported as byproduct.
Evidence · text
“and Silver 5.59”
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.