GR Silver Reports High-Grade Silver Results from the 20,000 m Step-Out Drilling Campaign at San Marcial: 15.6 m at 351 g/t Ag, including 2.5 m at 1,395 g/t Ag, in SMS26-03

Original announcement by tmx on

Company
GR Silver Mining Ltd.
Ticker
GRSL
Exchange
TSX
Region
Sinaloa, Mexico
Primary commodity
Silver
Secondary commodities
Gold, Lead, Zinc
Document categories
Drill results, Other
Extracted
2026-09-16 02:59:16 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

GR Silver reported high-grade silver results from its 2026 step-out drilling campaign at the San Marcial project, including a 15.6 m intercept at 351 g/t Ag in hole SMS26-03. The results confirm the continuity of the silver-mineralized system at depth in the SE Area and open up new potential in the upper volcanic sequence.

Reasoning: Significant high-grade silver intercepts in a step-out campaign that extend known mineralization and open new targets.

Positive factors

  • High-grade silver intercepts (up to 1,395 g/t Ag)
  • Step-out drilling confirms continuity of mineralization at depth
  • Opens new exploration potential in previously interpreted barren zones
  • Strong geological/structural model support

Negative factors

  • True width not estimated due to insufficient data

Facts used in scoring: 30

Classification and evidence

Bonanza Interceptpositive

Exceptionally high-grade zone, well above the deposit-type norm.

Why it applies: 1,395 g/t Ag is exceptionally high for an epithermal system.

Evidence · table

“1,395”

Context: 2.5

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: Drilling in the SE Area confirms continuity and expands the known mineralized footprint.

Evidence · text

“confirm the continuity of high-grade silver mineralization up to 500 metres down dip from surface”

QA/QC Disclosedpositive

Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).

Why it applies: Release details QA/QC procedures including blanks, duplicates, and standards at SGS de México.

Evidence · text

“insertion of blank, duplicate, and standard samples”

Apparent Width Onlynegative

Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness.

Why it applies: The document explicitly states that true width was not estimated due to insufficient data.

Evidence · text

“True width not estimated as there is insufficient data”

Extracted facts

Stored fact records: 30. Some facts used in scoring do not have a stored record.

Drill Results (30)

SMS26-01San Marcial · silverGrade: 498Grade Unit: g/tIntercept: 6.45 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
498
Grade Unit
g/t
Intercept
6.45 m
From
235.45 m
To
241.9 m
Intercept Depth
235.45 m

Classification

Program
exploration
Sample Type
drill
Group ID
SMS26-01:235.45-241.9
Mining Method
unknown

Location

Location
SE Area
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Strong silver grade in a new exploration zone.

Positive factors

  • High grade intercept

Evidence · table

“498”

Context: 6.45

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

SMS26-01San Marcial · silverGrade: 1618Grade Unit: g/tIntercept: 1.2 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
1618
Grade Unit
g/t
Intercept
1.2 m
From
239.15 m
To
240.35 m
Intercept Depth
235.45 m

Classification

Program
exploration
Sample Type
drill
Group ID
SMS26-01:239.15-240.35
Mining Method
unknown

Location

Location
SE Area
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Exceptional silver grade.

Positive factors

  • Bonanza grade

Evidence · table

“1,618”

Context: 1.2

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

SMS26-01San Marcial · goldGrade: 0.04Grade Unit: g/tIntercept: 1.2 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.04
Grade Unit
g/t
Intercept
1.2 m
From
239.15 m
To
240.35 m
Intercept Depth
235.45 m

Classification

Program
exploration
Sample Type
drill
Group ID
SMS26-01:239.15-240.35
Mining Method
unknown

Location

Location
SE Area
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Trace gold grade.

Evidence · table

“0.04”

Context: 1.2

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

SMS26-01San Marcial · silverGrade: 15Grade Unit: g/tIntercept: 22.95 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
15
Grade Unit
g/t
Intercept
22.95 m
From
382.8 m
To
405.75 m
Intercept Depth
382.8 m

Classification

Program
exploration
Sample Type
drill
Group ID
SMS26-01:382.8-405.75
Mining Method
unknown

Location

Location
SE Area
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Low grade silver intercept.

Negative factors

  • Low grade for silver

Evidence · table

“15”

Context: 22.95

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

SMS26-01San Marcial · silverGrade: 20Grade Unit: g/tIntercept: 61.15 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
20
Grade Unit
g/t
Intercept
61.15 m
From
416.45 m
To
477.6 m
Intercept Depth
416.45 m

Classification

Program
exploration
Sample Type
drill
Group ID
SMS26-01:416.45-477.6
Mining Method
unknown

Location

Location
SE Area
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Broad low-grade silver interval.

Positive factors

  • Significant width

Negative factors

  • Low grade

Evidence · table

“20”

Context: 61.15

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

SMS26-01San Marcial · silverGrade: 123Grade Unit: g/tIntercept: 0.7 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
123
Grade Unit
g/t
Intercept
0.7 m
From
416.45 m
To
417.15 m
Intercept Depth
416.45 m

Classification

Program
exploration
Sample Type
drill
Group ID
SMS26-01:416.45-417.15
Mining Method
unknown

Location

Location
SE Area
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Moderate silver grade.

Evidence · table

“123”

Context: 0.7

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

SMS26-01San Marcial · goldGrade: 0.78Grade Unit: g/tIntercept: 0.7 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.78
Grade Unit
g/t
Intercept
0.7 m
From
416.45 m
To
417.15 m
Intercept Depth
416.45 m

Classification

Program
exploration
Sample Type
drill
Group ID
SMS26-01:416.45-417.15
Mining Method
unknown

Location

Location
SE Area
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Notable gold grade in a silver intercept.

Evidence · table

“0.78”

Context: 0.7

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

SMS26-01San Marcial · silverGrade: 171Grade Unit: g/tIntercept: 0.9 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
171
Grade Unit
g/t
Intercept
0.9 m
From
476.7 m
To
477.6 m
Intercept Depth
476.7 m

Classification

Program
exploration
Sample Type
drill
Group ID
SMS26-01:476.7-477.6
Mining Method
unknown

Location

Location
SE Area
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Moderate silver grade.

Evidence · table

“171”

Context: 0.9

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

SMS26-01San Marcial · goldGrade: 0.85Grade Unit: g/tIntercept: 0.9 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.85
Grade Unit
g/t
Intercept
0.9 m
From
476.7 m
To
477.6 m
Intercept Depth
476.7 m

Classification

Program
exploration
Sample Type
drill
Group ID
SMS26-01:476.7-477.6
Mining Method
unknown

Location

Location
SE Area
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Notable gold grade in a silver intercept.

Evidence · table

“0.85”

Context: 0.9

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

SMS26-03San Marcial · silverGrade: 351Grade Unit: g/tIntercept: 15.6 mView all details
Link to this fact

Identity

Hole ID
SMS26-03
Project
San Marcial
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
351
Grade Unit
g/t
Intercept
15.6 m
From
222.85 m
To
238.45 m
Intercept Depth
222.85 m

Classification

Program
exploration
Sample Type
drill
Group ID
SMS26-03:222.85-238.45
Mining Method
unknown

Location

Location
SE Area
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Strong silver grade and significant width.

Positive factors

  • High-grade silver intercept

Evidence · table

“351”

Context: 15.6

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

SMS26-03San Marcial · silverGrade: 1395Grade Unit: g/tIntercept: 2.5 mView all details
Link to this fact

Identity

Hole ID
SMS26-03
Project
San Marcial
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
1395
Grade Unit
g/t
Intercept
2.5 m
From
222.85 m
To
225.35 m
Intercept Depth
222.85 m

Classification

Program
exploration
Sample Type
drill
Group ID
SMS26-03:222.85-225.35
Mining Method
unknown

Location

Location
SE Area
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Exceptional silver grade.

Positive factors

  • Bonanza grade

Evidence · table

“1,395”

Context: 2.5

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

SMS26-01San Marcial · goldGrade: 0.03Grade Unit: g/tIntercept: 6.45 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.03
Grade Unit
g/t
Intercept
6.45 m
From
235.45 m
To
241.9 m
Intercept Depth
235.45 m

Classification

Sample Type
drill
Group ID
SMS26-01:235.45-241.9
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.03 g/t gold is below against the default band [5, 2, 1, 0.3] g/t. Grade×width 0.2 g/t·m is below.

Negative factors

  • 0.03 g/t gold is below the weak threshold (0.3 g/t) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.03”

Context: SMS26-01

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

SMS26-01San Marcial · leadGrade: 0.2Grade Unit: %Intercept: 6.45 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
lead
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.2
Grade Unit
%
Intercept
6.45 m
From
235.45 m
To
241.9 m
Intercept Depth
235.45 m

Classification

Sample Type
drill
Group ID
SMS26-01:235.45-241.9
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.2 % lead is below against the default band [10, 6, 3, 1] %. Grade×width 1.3 %·m is below.

Negative factors

  • 0.2 % lead is below the weak threshold (1 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.2”

Context: SMS26-01

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

SMS26-01San Marcial · zincGrade: 0.5Grade Unit: %Intercept: 6.45 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
zinc
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.5
Grade Unit
%
Intercept
6.45 m
From
235.45 m
To
241.9 m
Intercept Depth
235.45 m

Classification

Sample Type
drill
Group ID
SMS26-01:235.45-241.9
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.5 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 3.2 %·m is below.

Negative factors

  • 0.5 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.5”

Context: SMS26-01

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

SMS26-01San Marcial · leadGrade: 1Grade Unit: %Intercept: 1.2 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
lead
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
1
Grade Unit
%
Intercept
1.2 m
From
239.15 m
To
240.35 m
Intercept Depth
239.15 m

Classification

Sample Type
drill
Group ID
SMS26-01:239.15-240.35
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 1 % lead is weak against the default band [10, 6, 3, 1] %. Grade×width 1.2 %·m is below (grade alone is weak; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.0”

Context: SMS26-01

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

SMS26-01San Marcial · zincGrade: 1.5Grade Unit: %Intercept: 1.2 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
zinc
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
1.5
Grade Unit
%
Intercept
1.2 m
From
239.15 m
To
240.35 m
Intercept Depth
239.15 m

Classification

Sample Type
drill
Group ID
SMS26-01:239.15-240.35
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 1.5 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 1.8 %·m is below.

Negative factors

  • 1.5 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.5”

Context: SMS26-01

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

SMS26-01San Marcial · goldGrade: 0.02Grade Unit: g/tIntercept: 22.95 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.02
Grade Unit
g/t
Intercept
22.95 m
From
382.8 m
To
405.75 m
Intercept Depth
382.8 m

Classification

Sample Type
drill
Group ID
SMS26-01:382.8-405.75
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.02 g/t gold is below against the default band [5, 2, 1, 0.3] g/t. Grade×width 0.5 g/t·m is below.

Negative factors

  • 0.02 g/t gold is below the weak threshold (0.3 g/t) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.02”

Context: SMS26-01

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

SMS26-01San Marcial · zincGrade: 0.1Grade Unit: %Intercept: 22.95 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
zinc
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.1
Grade Unit
%
Intercept
22.95 m
From
382.8 m
To
405.75 m
Intercept Depth
382.8 m

Classification

Sample Type
drill
Group ID
SMS26-01:382.8-405.75
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.1 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 2.3 %·m is below.

Negative factors

  • 0.1 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.1”

Context: SMS26-01

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

SMS26-01San Marcial · goldGrade: 0.04Grade Unit: g/tIntercept: 61.15 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.04
Grade Unit
g/t
Intercept
61.15 m
From
416.45 m
To
477.6 m
Intercept Depth
416.45 m

Classification

Sample Type
drill
Group ID
SMS26-01:416.45-477.6
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.04 g/t gold is below against the default band [5, 2, 1, 0.3] g/t. Grade×width 2.4 g/t·m is below.

Negative factors

  • 0.04 g/t gold is below the weak threshold (0.3 g/t) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.04”

Context: SMS26-01

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

SMS26-01San Marcial · zincGrade: 0.1Grade Unit: %Intercept: 61.15 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
zinc
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.1
Grade Unit
%
Intercept
61.15 m
From
416.45 m
To
477.6 m
Intercept Depth
416.45 m

Classification

Sample Type
drill
Group ID
SMS26-01:416.45-477.6
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.1 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 6.1 %·m is below.

Negative factors

  • 0.1 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.1”

Context: SMS26-01

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

SMS26-01San Marcial · leadGrade: 0.2Grade Unit: %Intercept: 0.7 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
lead
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.2
Grade Unit
%
Intercept
0.7 m
From
416.45 m
To
417.15 m
Intercept Depth
416.45 m

Classification

Sample Type
drill
Group ID
SMS26-01:416.45-417.15
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.2 % lead is below against the default band [10, 6, 3, 1] %. Grade×width 0.1 %·m is below.

Negative factors

  • 0.2 % lead is below the weak threshold (1 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.2”

Context: SMS26-01

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

SMS26-01San Marcial · zincGrade: 0.5Grade Unit: %Intercept: 0.7 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
zinc
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.5
Grade Unit
%
Intercept
0.7 m
From
416.45 m
To
417.15 m
Intercept Depth
416.45 m

Classification

Sample Type
drill
Group ID
SMS26-01:416.45-417.15
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.5 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 0.3 %·m is below.

Negative factors

  • 0.5 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.5”

Context: SMS26-01

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

SMS26-01San Marcial · zincGrade: 0.1Grade Unit: %Intercept: 0.9 mView all details
Link to this fact

Identity

Hole ID
SMS26-01
Project
San Marcial
Commodity
zinc
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.1
Grade Unit
%
Intercept
0.9 m
From
476.7 m
To
477.6 m
Intercept Depth
476.7 m

Classification

Sample Type
drill
Group ID
SMS26-01:476.7-477.6
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.1 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 0.1 %·m is below.

Negative factors

  • 0.1 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.1”

Context: SMS26-01

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

SMS26-03San Marcial · goldGrade: 0.09Grade Unit: g/tIntercept: 15.6 mView all details
Link to this fact

Identity

Hole ID
SMS26-03
Project
San Marcial
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.09
Grade Unit
g/t
Intercept
15.6 m
From
222.85 m
To
238.45 m
Intercept Depth
222.85 m

Classification

Sample Type
drill
Group ID
SMS26-03:222.85-238.45
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.09 g/t gold is below against the default band [5, 2, 1, 0.3] g/t. Grade×width 1.4 g/t·m is below.

Negative factors

  • 0.09 g/t gold is below the weak threshold (0.3 g/t) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.09”

Context: SMS26-03

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

SMS26-03San Marcial · leadGrade: 0.2Grade Unit: %Intercept: 15.6 mView all details
Link to this fact

Identity

Hole ID
SMS26-03
Project
San Marcial
Commodity
lead
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.2
Grade Unit
%
Intercept
15.6 m
From
222.85 m
To
238.45 m
Intercept Depth
222.85 m

Classification

Sample Type
drill
Group ID
SMS26-03:222.85-238.45
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.2 % lead is below against the default band [10, 6, 3, 1] %. Grade×width 3.1 %·m is below.

Negative factors

  • 0.2 % lead is below the weak threshold (1 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.2”

Context: SMS26-03

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

SMS26-03San Marcial · zincGrade: 0.5Grade Unit: %Intercept: 15.6 mView all details
Link to this fact

Identity

Hole ID
SMS26-03
Project
San Marcial
Commodity
zinc
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.5
Grade Unit
%
Intercept
15.6 m
From
222.85 m
To
238.45 m
Intercept Depth
222.85 m

Classification

Sample Type
drill
Group ID
SMS26-03:222.85-238.45
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.5 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 7.8 %·m is below.

Negative factors

  • 0.5 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.5”

Context: SMS26-03

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

SMS25-13ASan Marcial · silverGrade: 24Grade Unit: g/tIntercept: 2.55 mView all details
Link to this fact

Identity

Hole ID
SMS25-13A
Project
San Marcial
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
24
Grade Unit
g/t
Intercept
2.55 m
From
350.9 m
To
353.45 m
Intercept Depth
350.9 m

Classification

Sample Type
drill
Group ID
SMS25-13A:350.9-353.45
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 24 g/t silver is below against the default band [500, 200, 100, 30] g/t. Grade×width 61.2 g/t·m is below.

Negative factors

  • 24 g/t silver is below the weak threshold (30 g/t) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“24”

Context: SMS25-13A

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

SMS25-13ASan Marcial · goldGrade: 0.03Grade Unit: g/tIntercept: 2.55 mView all details
Link to this fact

Identity

Hole ID
SMS25-13A
Project
San Marcial
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
0.03
Grade Unit
g/t
Intercept
2.55 m
From
350.9 m
To
353.45 m
Intercept Depth
350.9 m

Classification

Sample Type
drill
Group ID
SMS25-13A:350.9-353.45
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 0.03 g/t gold is below against the default band [5, 2, 1, 0.3] g/t. Grade×width 0.1 g/t·m is below.

Negative factors

  • 0.03 g/t gold is below the weak threshold (0.3 g/t) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“0.03”

Context: SMS25-13A

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

SMS25-13ASan Marcial · leadGrade: 4Grade Unit: %Intercept: 2.55 mView all details
Link to this fact

Identity

Hole ID
SMS25-13A
Project
San Marcial
Commodity
lead
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
4
Grade Unit
%
Intercept
2.55 m
From
350.9 m
To
353.45 m
Intercept Depth
350.9 m

Classification

Sample Type
drill
Group ID
SMS25-13A:350.9-353.45
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 4 % lead is moderate against the default band [10, 6, 3, 1] %. Grade×width 10.2 %·m is weak (grade alone is moderate; the better of the two is used).

Negative factors

  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“4.0”

Context: SMS25-13A

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

SMS25-13ASan Marcial · zincGrade: 1Grade Unit: %Intercept: 2.55 mView all details
Link to this fact

Identity

Hole ID
SMS25-13A
Project
San Marcial
Commodity
zinc
Region
mexico
Reported Region
mexico
Ticker
GRSL

Geometry

Grade
1
Grade Unit
%
Intercept
2.55 m
From
350.9 m
To
353.45 m
Intercept Depth
350.9 m

Classification

Sample Type
drill
Group ID
SMS25-13A:350.9-353.45
Mining Method
unknown

Location

Location
Lower Zone
Loc. Source
document

QA/QC

Laboratory
SGS de México, S.A. de C.V.
QA/QC Disclosed
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-23T00:00:00.000Z

Reasoning: Expanded from assay table. 1 % zinc is below against the default band [18, 10, 5, 2] %. Grade×width 2.5 %·m is below.

Negative factors

  • 1 % zinc is below the weak threshold (2 %) on the default band.
  • Scored from rubric bands during table expansion, not from document context.

Evidence · table

“1.0”

Context: SMS25-13A

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

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.