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
- 2026-08-21 00:30:30 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Algo Grande's Phase I drilling at the Cerro Grande Skarn confirmed a vertically extensive, multi-horizon copper-silver-gold skarn system. The results include strong intercepts such as 18.2 m @ 1.8% CuEq and identify molybdenum zonation that vectors toward a potential porphyry source at depth.
Reasoning: Phase I drilling confirmed a high-grade, multi-horizon skarn system with significant expansion potential and geochemical vectors for a deeper porphyry system.
Positive factors
- strong copper-gold-silver mineralization
- multiple stacked skarn horizons identified
- molybdenum vectoring towards porphyry source
- mineralization extends beyond historical limits
Negative factors
- true widths unknown
- drilling deviation noted in AG_GC_003
Facts used in scoring: 7
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 includes detailed QA/QC procedures, including blanks, standards, and duplicates, and mentions a certified laboratory (ALS).
Evidence · text
“Quality assurance and quality control procedures included the insertion of blanks, standards, and duplicates at regular intervals.”
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”
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 widths are unknown for the reported intervals.
Evidence · text
“Intervals reported are downhole lengths; true widths are unknown.”
Extracted facts
Stored fact records: 7. Some facts used in scoring do not have a stored record.
Drill Results (7)
AG_GC_003Cerro Grande Skarn · copperGrade: 1.2Grade Unit: %Intercept: 18.2 mView all detailsHide details
Identity
- Hole ID
- AG_GC_003
- Project
- Cerro Grande Skarn
- Commodity
- copper
- Region
- mexico
- Reported Region
- Sonora, Mexico
- Ticker
- ALGR
Geometry
- Grade
- 1.2
- Grade Unit
- %
- Intercept
- 18.2 m
Classification
- 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
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-04-02T00:00:00.000Z
Reasoning: 1.2% Cu over 18.2m is a strong intercept for a skarn system.
Positive factors
- strong copper grade in skarn
Negative factors
- true width unknown
Evidence · text
“18.2 m @ 1.8% CuEq (1.2% Cu, 28.2 g/t Ag, 0.7 g/t Au)”
AG_GC_003Cerro Grande Skarn · silverGrade: 28.2Grade Unit: g/tIntercept: 18.2 mView all detailsHide details
Identity
- Hole ID
- AG_GC_003
- Project
- Cerro Grande Skarn
- Commodity
- silver
- Region
- mexico
- Reported Region
- Sonora, Mexico
- Ticker
- ALGR
Geometry
- Grade
- 28.2
- Grade Unit
- g/t
- Intercept
- 18.2 m
Classification
- 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
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-04-02T00:00:00.000Z
Reasoning: 28.2 g/t Ag provides significant value in the CuEq calculation.
Positive factors
- significant silver credits
Evidence · text
“28.2 g/t Ag”
AG_GC_003Cerro Grande Skarn · goldGrade: 0.7Grade Unit: g/tIntercept: 18.2 mView all detailsHide details
Identity
- Hole ID
- AG_GC_003
- Project
- Cerro Grande Skarn
- Commodity
- gold
- Region
- mexico
- Reported Region
- Sonora, Mexico
- Ticker
- ALGR
Geometry
- Grade
- 0.7
- Grade Unit
- g/t
- Intercept
- 18.2 m
Classification
- 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
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-04-02T00:00:00.000Z
Reasoning: 0.7 g/t Au contributes to the polymetallic nature of the intercept.
Positive factors
- gold presence
Evidence · text
“0.7 g/t Au”
AG_GC_003Cerro Grande Skarn · copperGrade: 2.4Grade Unit: %Intercept: 3.5 mView all detailsHide details
Identity
- Hole ID
- AG_GC_003
- Project
- Cerro Grande Skarn
- Commodity
- copper
- Region
- mexico
- Reported Region
- Sonora, Mexico
- Ticker
- ALGR
Geometry
- Grade
- 2.4
- Grade Unit
- %
- Intercept
- 3.5 m
Classification
- 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
- blanks, standards, duplicates
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 component.
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)”
AG_GC_003Cerro Grande Skarn · silverGrade: 61.1Grade Unit: g/tIntercept: 3.5 mView all detailsHide details
Identity
- Hole ID
- AG_GC_003
- Project
- Cerro Grande Skarn
- Commodity
- silver
- Region
- mexico
- Reported Region
- Sonora, Mexico
- Ticker
- ALGR
Geometry
- Grade
- 61.1
- Grade Unit
- g/t
- Intercept
- 3.5 m
Classification
- 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
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-04-02T00:00:00.000Z
Reasoning: 61.1 g/t Ag is a strong silver grade for this interval.
Positive factors
- high grade silver
Evidence · text
“61.1 g/t Ag”
AG_GC_003Cerro Grande Skarn · goldGrade: 1.8Grade Unit: g/tIntercept: 3.5 mView all detailsHide details
Identity
- Hole ID
- AG_GC_003
- Project
- Cerro Grande Skarn
- Commodity
- gold
- Region
- mexico
- Reported Region
- Sonora, Mexico
- Ticker
- ALGR
Geometry
- Grade
- 1.8
- Grade Unit
- g/t
- Intercept
- 3.5 m
Classification
- 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
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-04-02T00:00:00.000Z
Reasoning: 1.8 g/t Au is a strong grade for a sub-interval.
Positive factors
- high grade gold
Evidence · text
“1.8 g/t Au”
AG_GC_002Cerro Grande Skarn · molybdenumGrade: 2820Grade Unit: ppmIntercept: 0.8 mView all detailsHide details
Identity
- Hole ID
- AG_GC_002
- Project
- Cerro Grande Skarn
- Commodity
- molybdenum
- Region
- mexico
- Reported Region
- Sonora, Mexico
- Ticker
- ALGR
Geometry
- Grade
- 2820
- Grade Unit
- ppm
- Intercept
- 0.8 m
- From
- 333 m
- To
- 333.8 m
Classification
- Program
- exploration
- Sample Type
- drill
- Mining Method
- unknown
Location
- Loc. Confidence
- medium
QA/QC
- Laboratory
- ALS
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- blanks, standards, duplicates
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-04-02T00:00:00.000Z
Reasoning: 2820 ppm Mo is a significant geochemical vector towards a porphyry center.
Positive factors
- strong molybdenum vector
Evidence · text
“333.0m to 333.8m - 0.8 @ 2820 Mo”
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.