Algo Grande Copper Confirms 68.43 Metres of Copper-Silver-Gold Mineralization Across Two Zones in Hole AG-CG-PH2-002, Including a New Zone of 38.20 Metres at 1.0% CuEq
Original announcement by accesswire on
- Company
- Algo Grande Copper Corp.
- Ticker
- ALGR
- Exchange
- Unavailable
- Region
- Sonora, Mexico
- Primary commodity
- Copper
- Secondary commodities
- Silver, Gold, Zinc
- Document categories
- Drill results, Other
- Extracted
- 2026-09-23 07:18:07 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Algo Grande Copper has confirmed a second high-grade copper-silver-gold skarn zone in hole AG-CG-PH2-002 at the Cerro Grande discovery. The results demonstrate vertical continuity of the mineralization, with the two zones totaling 68.43 metres at 1.2% CuEq.
Reasoning: The release confirms a second high-grade mineralization zone in AG-CG-PH2-002, proving a multi-horizon skarn system and extending the interpreted thickness of the host package.
Positive factors
- Confirmation of a second high-grade skarn zone
- Vertical continuity demonstrated
- Extension of interpreted host package thickness
- High-grade CuEq intercepts
Negative factors
- Assumed metallurgical recovery used for CuEq
- True widths not yet determined
Facts used in scoring: 4
Classification and evidence
Step-Out Extensionpositive
Mineralization extended beyond the previously known limit.
Why it applies: The hole confirmed a second, deeper high-grade zone 67m below the previously reported upper zone, extending the vertical footprint.
Evidence · text
“confirm a second, discrete high-grade copper-silver-gold skarn zone from 243.80 to 282.00 metres downhole, approximately 67 metres below the base of the upper zone”
QA/QC Disclosedpositive
Release includes QA/QC disclosure — certified lab, QP sign-off, or stated methods (blanks, standards, duplicates).
Why it applies: The release details ALS Laboratories' accreditation, preparation methods, and the company's use of blanks and certified reference materials.
Evidence · text
“ALS Laboratories employs internal quality control procedures including the routine insertion of certified reference materials, blanks, 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 reported intervals are drill-indicated (downhole) lengths and true widths have not yet been determined.
Evidence · text
“Reported intervals are drill-indicated (downhole) lengths; true widths have not yet been determined.”
Metal Equivalent Opaquenegative
Metal equivalent grade reported without disclosing the price, recovery, or payability assumptions used. Requires an actual metal equivalent grade; a combined elemental basket such as PGE is not a metal equivalent.
Why it applies: CuEq is reported based on assumed 80% metallurgical recovery which has not yet been established for the project.
Evidence · text
“metallurgical recoveries have not yet been established for the Adelita Project, and readers are cautioned that CuEq figures are for illustrative purposes only”
Extracted facts
Stored fact records: 4. Some facts used in scoring do not have a stored record.
Drill Results (4)
AG-CG-PH2-002Adelita · copperGrade: 1.5Grade Unit: %Intercept: 30.23 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- AG-CG-PH2-002
- Project
- Adelita
- Commodity
- copper
- Region
- mexico
- Reported Region
- mexico
- Ticker
- ALGR
Geometry
- Grade
- 1.5
- Grade Unit
- %
- Intercept
- 30.23 m
- From
- 146.7 m
- To
- 176.93 m
- Hole Depth
- 661.8 m
- Intercept Depth
- 146.7 m
Classification
- Deposit Type
- skarn
- Program
- resource
- Sample Type
- drill
- Group ID
- AG-CG-PH2-002:146.7-176.93
- Mining Method
- unknown
Location
- Location
- Upper zone
- Easting
- 738897
- Northing
- 2961802
- CRS
- UTM WGS84 Zone 12N
- Elevation
- 582 m
- Azimuth
- 112.9 °
- Dip
- -80 °
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- ALS Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 1.5
- Metal Eq. Unit
- % CuEq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
- Historical Source Date
- 2026-09-11T00:00:00.000Z
Dates
- Event date
- 2026-09-23T00:00:00.000Z
Reasoning: Previously reported upper zone interval.
Evidence · text
“30.23 metres grading 1.5% CuEq from 146.70 metres”
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
Stale Data Re-releasenegative
Historical results re-announced with no new assays or reinterpretation — low genuine novelty.
Why it applies: the fact restates a prior release
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "With 68.43 metres of combined high-grade mineralization now confirmed across two zones, and the system still open along "
AG-CG-PH2-002Adelita · copperGrade: 1Grade Unit: %Intercept: 38.2 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- AG-CG-PH2-002
- Project
- Adelita
- Commodity
- copper
- Region
- mexico
- Reported Region
- mexico
- Ticker
- ALGR
Geometry
- Grade
- 1
- Grade Unit
- %
- Intercept
- 38.2 m
- From
- 243.8 m
- To
- 282 m
- Hole Depth
- 661.8 m
- Intercept Depth
- 243.8 m
Classification
- Deposit Type
- skarn
- Program
- resource
- Sample Type
- drill
- Group ID
- AG-CG-PH2-002:243.8-282
- Mining Method
- unknown
Location
- Location
- Lower zone
- Easting
- 738897
- Northing
- 2961802
- CRS
- UTM WGS84 Zone 12N
- Elevation
- 582 m
- Azimuth
- 112.9 °
- Dip
- -80 °
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- ALS Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 1
- Metal Eq. Unit
- % CuEq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Interp. Status
- scored
- Historical
- Yes
Dates
- Event date
- 2026-09-23T00:00:00.000Z
Reasoning: Newly reported lower zone confirming vertical continuity.
Positive factors
- New high-grade zone confirmed
Evidence · text
“38.20 metres grading 1.0% CuEq from 243.80 metres”
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
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "With 68.43 metres of combined high-grade mineralization now confirmed across two zones, and the system still open along "
AG-CG-PH2-002Adelita · copperGrade: 4.5Grade Unit: %Intercept: 1.7 mView all detailsHide details
Identity
- Hole ID
- AG-CG-PH2-002
- Project
- Adelita
- Commodity
- copper
- Region
- mexico
- Reported Region
- mexico
- Ticker
- ALGR
Geometry
- Grade
- 4.5
- Grade Unit
- %
- Intercept
- 1.7 m
- From
- 244.3 m
- To
- 246 m
- Hole Depth
- 661.8 m
- Intercept Depth
- 244.3 m
Classification
- Deposit Type
- skarn
- Program
- resource
- Sample Type
- drill
- Group ID
- AG-CG-PH2-002:244.3-246
- Mining Method
- unknown
Location
- Location
- Lower zone
- Easting
- 738897
- Northing
- 2961802
- CRS
- UTM WGS84 Zone 12N
- Elevation
- 582 m
- Azimuth
- 112.9 °
- Dip
- -80 °
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- ALS Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 4.5
- Metal Eq. Unit
- % CuEq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-23T00:00:00.000Z
Reasoning: High-grade component of the new lower zone.
Positive factors
- High-grade sub-interval
Evidence · text
“1.70 metres grading 4.5% CuEq from 244.30 metres”
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
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "With 68.43 metres of combined high-grade mineralization now confirmed across two zones, and the system still open along "
AG-CG-PH2-002Adelita · copperGrade: 2Grade Unit: %Intercept: 11.5 mView all detailsHide details
Identity
- Hole ID
- AG-CG-PH2-002
- Project
- Adelita
- Commodity
- copper
- Region
- mexico
- Reported Region
- mexico
- Ticker
- ALGR
Geometry
- Grade
- 2
- Grade Unit
- %
- Intercept
- 11.5 m
- From
- 268 m
- To
- 279.5 m
- Hole Depth
- 661.8 m
- Intercept Depth
- 268 m
Classification
- Deposit Type
- skarn
- Program
- resource
- Sample Type
- drill
- Group ID
- AG-CG-PH2-002:268-279.5
- Mining Method
- unknown
Location
- Location
- Lower zone
- Easting
- 738897
- Northing
- 2961802
- CRS
- UTM WGS84 Zone 12N
- Elevation
- 582 m
- Azimuth
- 112.9 °
- Dip
- -80 °
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- Laboratory
- ALS Laboratories
- QA/QC Disclosed
- Yes
- Lab Certified
- Yes
- QP Signed
- Yes
- QA/QC Methods
- standards, blanks, duplicates
Metal Equivalent
- Metal Eq. Grade
- 2
- Metal Eq. Unit
- % CuEq
- Assumptions Disclosed
- Yes
Review
- Needs Review
- No
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-09-23T00:00:00.000Z
Reasoning: High-grade core of the new lower zone.
Positive factors
- High-grade core
Evidence · text
“11.50 metres grading 2.0% CuEq from 268.00 metres”
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
Infill Drillingneutral
Confirmatory drilling to raise resource confidence, not new discovery.
Why it applies: drill_program_type is "resource"
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: proximity is offered as the value premise: "With 68.43 metres of combined high-grade mineralization now confirmed across two zones, and the system still open along "
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.