GR Silver Returns 5.34 g/t Gold From a Second San Marcial Target
Original announcement by cruxinvestor on
- Company
- GR Silver Mining Ltd.
- Ticker
- GRSL
- Exchange
- Unavailable
- Region
- Mexico
- Primary commodity
- Silver
- Secondary commodities
- Gold, Lead, Zinc
- Document categories
- Drill results, Resource update
- Extracted
- 2026-09-05 19:18:08 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
GR Silver Mining reported step-out drill results from the San Marcial area of the Plomosas Project, extending the high-grade silver zone southeast of the 2023 resource boundary. Notably, the parallel breccia target returned gold intercepts, a metal previously assigned 0% recovery in the project's mineral resource estimate.
Reasoning: Significant step-out results extending the silver resource and discovering new gold mineralization in a previously non-contributing target.
Positive factors
- Step-out drilling extends high-grade silver zone 150m past 2023 resource boundary
- Discovery of gold in parallel breccia target which was previously credited with 0% recovery
- High-grade silver intercepts (447 g/t) in southeast extension
- Presence of pathfinder elements (Pb, Zn) supporting geological model
Negative factors
- Gold recovery in San Marcial area currently assumed at 0% in MRE
Facts used in scoring: 12
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: Drilling extended high-grade mineralization at least 150m past the 2023 resource boundary.
Evidence · text
“extending high-grade mineralization at least 150 m past the 2023 resource boundary”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: Release mentions core goes to SGS de México for assay and silver results above 100ppm are re-assayed.
Evidence · text
“Core goes to SGS de México in Durango for assay, with silver results above 100 parts per million re-assayed.”
Extracted facts
Stored fact records: 12. Some facts used in scoring do not have a stored record.
Drill Results (12)
Fact 1Plomosas Project · silverGrade: 168Grade Unit: g/tIntercept: 21.9 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Plomosas Project
- Commodity
- silver
- Region
- mexico
- Reported Region
- Mexico
- Ticker
- GRSL
Geometry
- Grade
- 168
- Grade Unit
- g/t
- Intercept
- 21.9 m
- True Width
- 21.9 m
- From
- 191.5 m
Classification
- Sample Type
- drill
- Mining Method
- underground
QA/QC
- Laboratory
- SGS de México
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-05T00:00:00.000Z
Reasoning: High-grade silver intercept with significant true width extending the known resource.
Positive factors
- Significant true width reported
- Extends mineralization 150m past resource boundary
Fact 2Plomosas Project · goldGrade: 0.08Grade Unit: g/tIntercept: 21.9 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Plomosas Project
- Commodity
- gold
- Region
- mexico
- Reported Region
- Mexico
- Ticker
- GRSL
Geometry
- Grade
- 0.08
- Grade Unit
- g/t
- Intercept
- 21.9 m
- True Width
- 21.9 m
- From
- 191.5 m
Classification
- Sample Type
- drill
- Mining Method
- underground
QA/QC
- Laboratory
- SGS de México
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-05T00:00:00.000Z
Reasoning: Trace gold associated with high-grade silver intercept.
Fact 3Plomosas Project · leadGrade: 0.5Grade Unit: %Intercept: 21.9 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Plomosas Project
- Commodity
- lead
- Region
- mexico
- Reported Region
- Mexico
- Ticker
- GRSL
Geometry
- Grade
- 0.5
- Grade Unit
- %
- Intercept
- 21.9 m
- True Width
- 21.9 m
- From
- 191.5 m
Classification
- Sample Type
- drill
- Mining Method
- underground
QA/QC
- Laboratory
- SGS de México
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-05T00:00:00.000Z
Reasoning: Trace lead reported as pathfinder.
Fact 4Plomosas Project · zincGrade: 1.41Grade Unit: %Intercept: 21.9 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Plomosas Project
- Commodity
- zinc
- Region
- mexico
- Reported Region
- Mexico
- Ticker
- GRSL
Geometry
- Grade
- 1.41
- Grade Unit
- %
- Intercept
- 21.9 m
- True Width
- 21.9 m
- From
- 191.5 m
Classification
- Sample Type
- drill
- Mining Method
- underground
QA/QC
- Laboratory
- SGS de México
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-05T00:00:00.000Z
Reasoning: Zinc reported as pathfinder element.
Fact 5Plomosas Project · silverGrade: 447Grade Unit: g/tIntercept: 6.15 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Plomosas Project
- Commodity
- silver
- Region
- mexico
- Reported Region
- Mexico
- Ticker
- GRSL
Geometry
- Grade
- 447
- Grade Unit
- g/t
- Intercept
- 6.15 m
Classification
- Sample Type
- drill
- Mining Method
- underground
QA/QC
- Laboratory
- SGS de México
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-05T00:00:00.000Z
Reasoning: Very high grade silver sub-interval.
Positive factors
- Bonanza grade silver
Fact 6Plomosas Project · zincGrade: 0.85Grade Unit: %Intercept: 6.15 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Plomosas Project
- Commodity
- zinc
- Region
- mexico
- Reported Region
- Mexico
- Ticker
- GRSL
Geometry
- Grade
- 0.85
- Grade Unit
- %
- Intercept
- 6.15 m
Classification
- Sample Type
- drill
- Mining Method
- underground
QA/QC
- Laboratory
- SGS de México
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-05T00:00:00.000Z
Reasoning: Zinc sub-interval reported.
Fact 7Plomosas Project · silverGrade: 340Grade Unit: g/tIntercept: 2.85 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Plomosas Project
- Commodity
- silver
- Region
- mexico
- Reported Region
- Mexico
- Ticker
- GRSL
Geometry
- Grade
- 340
- Grade Unit
- g/t
- Intercept
- 2.85 m
- From
- 63 m
Classification
- Sample Type
- drill
- Mining Method
- underground
QA/QC
- Laboratory
- SGS de México
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-05T00:00:00.000Z
Reasoning: High grade silver intercept in a new target.
Positive factors
- High grade silver in parallel breccia
Fact 8Plomosas Project · goldGrade: 0.32Grade Unit: g/tIntercept: 2.85 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Plomosas Project
- Commodity
- gold
- Region
- mexico
- Reported Region
- Mexico
- Ticker
- GRSL
Geometry
- Grade
- 0.32
- Grade Unit
- g/t
- Intercept
- 2.85 m
- From
- 63 m
Classification
- Sample Type
- drill
- Mining Method
- underground
QA/QC
- Laboratory
- SGS de México
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-05T00:00:00.000Z
Reasoning: Gold presence in parallel breccia is a key discovery signal.
Positive factors
- Gold discovery in target previously credited with 0% recovery
Fact 9Plomosas Project · silverGrade: 450Grade Unit: g/tIntercept: 1.7 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Plomosas Project
- Commodity
- silver
- Region
- mexico
- Reported Region
- Mexico
- Ticker
- GRSL
Geometry
- Grade
- 450
- Grade Unit
- g/t
- Intercept
- 1.7 m
Classification
- Sample Type
- drill
- Mining Method
- underground
QA/QC
- Laboratory
- SGS de México
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-05T00:00:00.000Z
Reasoning: High grade silver sub-interval.
Positive factors
- Bonanza grade silver
Fact 10Plomosas Project · goldGrade: 0.37Grade Unit: g/tIntercept: 1.7 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Plomosas Project
- Commodity
- gold
- Region
- mexico
- Reported Region
- Mexico
- Ticker
- GRSL
Geometry
- Grade
- 0.37
- Grade Unit
- g/t
- Intercept
- 1.7 m
Classification
- Sample Type
- drill
- Mining Method
- underground
QA/QC
- Laboratory
- SGS de México
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-05T00:00:00.000Z
Reasoning: Trace gold in sub-interval.
Fact 11Plomosas Project · goldGrade: 5.34Grade Unit: g/tIntercept: 0.75 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Plomosas Project
- Commodity
- gold
- Region
- mexico
- Reported Region
- Mexico
- Ticker
- GRSL
Geometry
- Grade
- 5.34
- Grade Unit
- g/t
- Intercept
- 0.75 m
- From
- 195 m
Classification
- Sample Type
- drill
- Mining Method
- underground
QA/QC
- Laboratory
- SGS de México
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-05T00:00:00.000Z
Reasoning: High grade gold intercept in parallel breccia.
Positive factors
- High grade gold in new target
Fact 12Plomosas Project · silverGrade: 8Grade Unit: g/tIntercept: 0.75 mNeeds review: drill_no_hole_idView all detailsHide details
Identity
- Project
- Plomosas Project
- Commodity
- silver
- Region
- mexico
- Reported Region
- Mexico
- Ticker
- GRSL
Geometry
- Grade
- 8
- Grade Unit
- g/t
- Intercept
- 0.75 m
- From
- 195 m
Classification
- Sample Type
- drill
- Mining Method
- underground
QA/QC
- Laboratory
- SGS de México
- QA/QC Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- drill_no_hole_id
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-05T00:00:00.000Z
Reasoning: Low grade silver associated with gold intercept.
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.