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
- 2026-09-13 14:59:13 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Black Mammoth Metals reported high-grade silver rock chip sampling at the Amador property in Nevada, with grades up to 717 g/t Ag and an average of 210.3 g/t Ag across 19 samples. The results include elevated arsenic levels and will be followed by an induced polarization survey to target a first phase of drilling.
Reasoning: High-grade silver rock chip results confirm historical potential and justify upcoming drilling, though arsenic levels are elevated.
Positive factors
- High-grade silver intercepts (up to 717 g/t)
- Strong average grade (210.3 g/t) across 19 samples
- QA/QC protocols disclosed including CRM, duplicates, and blanks
- Qualified Person sign-off provided
Negative factors
- Deleterious elements (arsenic up to 3350 ppm) noted
- Sampling method is rock chip (surface) rather than drill core
Facts used in scoring: 2
Classification and evidence
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release mentions CRM standards, duplicates, and blanks, and names ALS as the laboratory.
Evidence · text
“includes regular insertion of CRM standards, duplicates and blanks”
Deleterious Elements Presentnegative
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: Arsenic up to 3350 ppm was reported in the samples.
Evidence · text
“As up to 3350 ppm”
Extracted facts
Stored fact records: 2. Some facts used in scoring do not have a stored record.
Drill Results (2)
Fact 1Amador · silverGrade: 717Grade Unit: g/tView all detailsHide details
Identity
- Project
- Amador
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BMM
Geometry
- Grade
- 717
- Grade Unit
- g/t
Classification
- Sample Type
- surface
- Mining Method
- unknown
Location
- Location
- Amador
- Loc. Source
- document
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 a very high-grade intercept for silver rock chips.
Positive factors
- Exceptional silver grade
Negative factors
- Surface sampling only
Evidence · text
“ranging from 1.7 g/t to 717 g/t”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Deleterious Elements Presentnegative
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: deleterious_flag is true
Fact 2Amador · silverGrade: 210.3Grade Unit: g/tView all detailsHide details
Identity
- Project
- Amador
- Commodity
- silver
- Region
- usa_nv
- Reported Region
- Nevada
- Ticker
- BMM
Geometry
- Grade
- 210.3
- Grade Unit
- g/t
Classification
- Sample Type
- surface
- Mining Method
- unknown
Location
- Location
- Amador
- Loc. Source
- document
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: The average grade of 210.3 g/t Ag across 19 samples is highly significant for a rock chip program.
Positive factors
- Strong average grade across multiple samples
Negative factors
- Surface sampling only
Evidence · text
“silver contents that averaged 210.3 g/t”
Tags used in scoring
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: qaqc_disclosed is true
Cut-off Undisclosednegative
High-grade interval reported without stating the cut-off grade used for compositing.
Why it applies: no cutoff_grade was stated
Deleterious Elements Presentnegative
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: deleterious_flag is true
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.