Black Mammoth Metals Samples up to 717 g/t Silver with 210 g/t Average at Amador, NV
Original announcement by tmx on
- Company
- Black Mammoth Metals Corporation
- Ticker
- BMM
- Exchange
- TSX
- Region
- Nevada
- Primary commodity
- Silver
- Secondary commodities
- Arsenic, Antimony, Selenium
- Document categories
- Drill results
- Extracted
- 2026-08-21 07:45:23 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Black Mammoth Metals reported high-grade silver rock chip samples at the Amador property in Nevada, with grades averaging 210.3 g/t Ag and peaking at 717 g/t Ag. The program included 19 samples and confirmed the presence of silver mineralization within a quartz vein shear, alongside elevated arsenic levels.
Reasoning: High-grade silver rock chip samples (up to 717 g/t) confirm historical potential, supported by robust QA/QC and QP sign-off, though arsenic levels are elevated.
Positive factors
- High grade silver intercepts
- QA/QC disclosed
- QP signed
Negative factors
- Deleterious elements present
- Sample type is rock chip
Facts used in scoring: 3
Classification and evidence
Bonanza Interceptpositive
Exceptionally high-grade zone, well above the deposit-type norm.
Why it applies: 717 g/t silver is exceptionally high grade.
Evidence · text
“ranging from 1.7 g/t to 717 g/t”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release details ALS laboratory, accreditation, and specific QA/QC methods like standards and blanks.
Evidence · text
“Black Mammoth Metals Corp's QA/QC program includes regular insertion of CRM standards, duplicates and blanks”
Deleterious Elements Presentnegative
Penalty elements (arsenic, antimony, etc.) or refractory concerns noted in the release.
Why it applies: Arsenic, antimony, and selenium were explicitly reported.
Evidence · text
“accompanied by strong trace element contents with As up to 3350 ppm”
Extracted facts
Stored fact records: 3. Some facts used in scoring do not have a stored record.
Drill Results (3)
Fact 1silverGrade: 717Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BMM
Geometry
- Grade
- 717
- Grade Unit
- g/t
Classification
- Sample Type
- surface
- Group ID
- surface:rock_chip_max
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, duplicates, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic, antimony, selenium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2025-07-22T00:00:00.000Z
Reasoning: 717 g/t Ag is an exceptional silver grade for surface sampling.
Positive factors
- Bonanza Intercept
Evidence · text
“ranging from 1.7 g/t to 717 g/t (23.04 oz/t)”
Fact 2silverGrade: 210.3Grade Unit: g/tView all detailsHide details
Identity
- Commodity
- silver
- Ticker
- BMM
Geometry
- Grade
- 210.3
- Grade Unit
- g/t
Classification
- Sample Type
- surface
- Group ID
- surface:rock_chip_avg
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, duplicates, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic, antimony, selenium
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2025-07-22T00:00:00.000Z
Reasoning: Average grade of 210.3 g/t Ag is strong for a rock chip program.
Evidence · text
“silver contents that averaged 210.3 g/t (6.76 oz/t)”
Fact 3arsenicGrade: 3350Grade Unit: ppmView all detailsHide details
Identity
- Commodity
- arsenic
- Ticker
- BMM
Geometry
- Grade
- 3350
- Grade Unit
- ppm
Classification
- Sample Type
- surface
- Group ID
- surface:rock_chip_arsenic
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, duplicates, blanks
Deleterious
- Deleterious Flag
- Yes
- Deleterious Elements
- arsenic
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2025-07-22T00:00:00.000Z
Reasoning: Arsenic levels up to 3350 ppm are noted as a trace element content.
Negative factors
- Deleterious Elements Present
Evidence · text
“As up to 3350 ppm”
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.