Algo Grande Reports Results from Completed Phase I Drill Program at Cerro Grande Skarn

Original announcement by tmx on

Company
Algo Grande Copper Corp.
Ticker
ALGR
Exchange
TSX
Region
Sonora, Mexico
Primary commodity
Copper
Secondary commodities
Silver, Gold, Molybdenum
Document categories
Drill results
Extracted
2026-09-13 11:06:24 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Algo Grande completed its Phase I drill program at the Cerro Grande Skarn, confirming a high-grade, multi-horizon copper-silver-gold system. Notable intercepts include 18.2 m @ 1.8% CuEq, with molybdenum values providing a geochemical vector toward a potential porphyry source at depth.

Reasoning: Phase I drilling confirmed a vertically extensive, multi-horizon skarn system with high-grade copper-gold-silver intercepts and molybdenum zonation suggesting a deeper porphyry source.

Positive factors

  • Strong high-grade intercepts (1.8% CuEq)
  • Discovery of new skarn horizons
  • Geochemical vectors (Mo) for porphyry source
  • Expansion beyond historical limits
  • High core recovery (>95%)

Negative factors

  • Apparent width only (true width unknown)
  • Drilling deviation noted in AG_GC_003

Facts used in scoring: 6

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 insertion of blanks, standards, and duplicates and use of a certified analytical laboratory.

Evidence · text

“Quality assurance and quality control procedures included the insertion of blanks, standards, and duplicates at regular intervals.”

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 intervals reported are downhole lengths and true widths are unknown.

Evidence · text

“Intervals reported are downhole lengths; true widths are unknown.”

Step-Out Extensionpositive

Mineralization extended beyond the previously known limit.

Why it applies: Results confirm mineralization extends beyond the limits of earlier drilling.

Evidence · text

“results from this program confirm that mineralization extends beyond the limits of earlier drilling”

Extracted facts

Stored fact records: 6. Some facts used in scoring do not have a stored record.

Drill Results (6)

AG_GC_003Cerro Grande Skarn · copperGrade: 1.2Grade Unit: %Intercept: 18.2 mView all details
Link to this fact

Identity

Hole ID
AG_GC_003
Project
Cerro Grande Skarn
Commodity
copper
Region
mexico
Reported Region
mexico
Ticker
ALGR

Geometry

Grade
1.2
Grade Unit
%
Intercept
18.2 m

Classification

Deposit Type
skarn
Program
exploration
Sample Type
drill
Group ID
AG_GC_003:unknown-unknown
Mining Method
unknown

Location

Loc. Confidence
medium

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Metal Equivalent

Metal Eq. Grade
1.8
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Compositing

Dilution Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-02T00:00:00.000Z

Reasoning: 18.2 m @ 1.2% Cu is a strong intercept for a skarn system.

Positive factors

  • Strong grade for skarn system

Negative factors

  • True width not disclosed

Evidence · text

“18.2 m @ 1.8% CuEq (1.2% Cu, 28.2 g/t Ag, 0.7 g/t Au)”

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

AG_GC_003Cerro Grande Skarn · silverGrade: 28.2Grade Unit: g/tIntercept: 18.2 mView all details
Link to this fact

Identity

Hole ID
AG_GC_003
Project
Cerro Grande Skarn
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
ALGR

Geometry

Grade
28.2
Grade Unit
g/t
Intercept
18.2 m

Classification

Deposit Type
skarn
Program
exploration
Sample Type
drill
Group ID
AG_GC_003:unknown-unknown
Mining Method
unknown

Location

Loc. Confidence
medium

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Compositing

Dilution Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-02T00:00:00.000Z

Reasoning: Silver credit in a copper-gold skarn intercept.

Evidence · text

“28.2 g/t Ag”

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

AG_GC_003Cerro Grande Skarn · goldGrade: 0.7Grade Unit: g/tIntercept: 18.2 mView all details
Link to this fact

Identity

Hole ID
AG_GC_003
Project
Cerro Grande Skarn
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
ALGR

Geometry

Grade
0.7
Grade Unit
g/t
Intercept
18.2 m

Classification

Deposit Type
skarn
Program
exploration
Sample Type
drill
Group ID
AG_GC_003:unknown-unknown
Mining Method
unknown

Location

Loc. Confidence
medium

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Compositing

Dilution Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-02T00:00:00.000Z

Reasoning: Gold credit in a copper-silver skarn intercept.

Evidence · text

“0.7 g/t Au”

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

AG_GC_003Cerro Grande Skarn · copperGrade: 2.4Grade Unit: %Intercept: 3.5 mView all details
Link to this fact

Identity

Hole ID
AG_GC_003
Project
Cerro Grande Skarn
Commodity
copper
Region
mexico
Reported Region
mexico
Ticker
ALGR

Geometry

Grade
2.4
Grade Unit
%
Intercept
3.5 m

Classification

Deposit Type
skarn
Program
exploration
Sample Type
drill
Group ID
AG_GC_003:unknown-unknown
Mining Method
unknown

Location

Loc. Confidence
medium

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Metal Equivalent

Metal Eq. Grade
3.9
Metal Eq. Unit
% CuEq
Assumptions Disclosed
Yes

Compositing

Dilution Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-02T00:00:00.000Z

Reasoning: 3.5 m @ 2.4% Cu is a very strong high-grade intercept.

Positive factors

  • High grade sub-interval

Evidence · text

“3.5 m @ 3.9% CuEq (2.4% Cu, 61.1 g/t Ag, 1.8 g/t Au)”

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

AG_GC_003Cerro Grande Skarn · silverGrade: 61.1Grade Unit: g/tIntercept: 3.5 mView all details
Link to this fact

Identity

Hole ID
AG_GC_003
Project
Cerro Grande Skarn
Commodity
silver
Region
mexico
Reported Region
mexico
Ticker
ALGR

Geometry

Grade
61.1
Grade Unit
g/t
Intercept
3.5 m

Classification

Deposit Type
skarn
Program
exploration
Sample Type
drill
Group ID
AG_GC_003:unknown-unknown
Mining Method
unknown

Location

Loc. Confidence
medium

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Compositing

Dilution Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-02T00:00:00.000Z

Reasoning: Silver credit in a high-grade sub-interval.

Evidence · text

“61.1 g/t Ag”

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

AG_GC_003Cerro Grande Skarn · goldGrade: 1.8Grade Unit: g/tIntercept: 3.5 mView all details
Link to this fact

Identity

Hole ID
AG_GC_003
Project
Cerro Grande Skarn
Commodity
gold
Region
mexico
Reported Region
mexico
Ticker
ALGR

Geometry

Grade
1.8
Grade Unit
g/t
Intercept
3.5 m

Classification

Deposit Type
skarn
Program
exploration
Sample Type
drill
Group ID
AG_GC_003:unknown-unknown
Mining Method
unknown

Location

Loc. Confidence
medium

QA/QC

Laboratory
ALS
QA/QC Disclosed
Yes
Lab Certified
Yes
QP Signed
Yes
QA/QC Methods
standards, blanks, duplicates

Compositing

Dilution Disclosed
Yes

Review

Needs Review
No
Interp. Status
scored
Historical
No

Dates

Event date
2026-04-02T00:00:00.000Z

Reasoning: Gold credit in a high-grade sub-interval.

Evidence · text

“1.8 g/t Au”

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.