Algo Grande Copper Core Testing Shows Mineralized Skarn is Denser and More Chargeable Than Host Rocks; Ground Gravity Survey to Begin at Adelita
Original announcement by jmn on
- Company
- Algo Grande Copper Corp.
- Ticker
- ALGR
- Exchange
- TSXV
- Region
- Sonora, Mexico
- Primary commodity
- Copper
- Secondary commodities
- Silver, Gold
- Document categories
- Drill results, Other
- Extracted
- 2026-10-07 22:23:30 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Algo Grande Copper has reported visual evidence of copper sulfides in a new skarn zone within hole AG-CG-PH2-003 at the Adelita Project. Additionally, rock property testing confirms that mineralized skarn is significantly denser and more chargeable than surrounding host rocks, supporting an upcoming ground gravity survey.
Reasoning: The release reports visual identification of mineralization in a new skarn zone and provides petrophysical data to support upcoming geophysical surveys, though actual assay results are pending.
Positive factors
- Petrophysical testing confirms mineralized skarn is denser and more chargeable than host rocks
- Visual identification of copper sulfides (chalcopyrite, covellite, bornite) in new skarn zone
- Planned ground gravity survey to de-risk structural targets
Negative factors
- Assays for the new skarn interval are still pending
- True widths for the reported interval are not yet known
- Petrophysical results are based on a small, selected set of samples
Facts used in scoring: 1
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: The release includes a sign-off by a Qualified Person (João Rocha, EurGeol).
Evidence · text
“The scientific and technical information disclosed in this news release has been reviewed and approved by João Rocha, EurGeol... a Qualified Person”
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 reported interval is a downhole length and the document explicitly states true widths are not yet known.
Evidence · text
“Intervals are downhole lengths; true widths are not yet known.”
Extracted facts
Stored fact records: 1. Some facts used in scoring do not have a stored record.
Drill Results (1)
AG-CG-PH2-003Adelita · copperIntercept: 52.1 mHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Hole ID
- AG-CG-PH2-003
- Project
- Adelita
- Commodity
- copper
- Region
- mexico
- Reported Region
- mexico
- Ticker
- ALGR
Geometry
- Intercept
- 52.1 m
- From
- 602 m
- To
- 654.1 m
- Intercept Depth
- 602 m
Classification
- Program
- exploration
- Sample Type
- drill
- Group ID
- AG-CG-PH2-003:602-654.1
- Mining Method
- unknown
Location
- Location
- fault-hosted skarn
- Easting
- 738994
- Northing
- 2961792
- CRS
- WGS84, UTM Zone 12N
- Elevation
- 490 m
- Azimuth
- 251 °
- Dip
- 55 °
- Loc. Confidence
- medium
- Loc. Source
- document
QA/QC
- QP Signed
- Yes
- QA/QC Methods
- standards
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
- 2026-10-07T00:00:00.000Z
Reasoning: Visual identification of copper sulfides in a new skarn zone, but grades and widths are unconfirmed by assays.
Positive factors
- Visual presence of chalcopyrite, covellite, and bornite
Negative factors
- Assays are pending
- True width not yet known
- Visual observations are preliminary
Evidence · text
“The hole intersected fault-hosted skarn from 602.0 to 654.1 m downhole, including an interval from 624.45 to 634.50 m in which core logging identified visible chalcopyrite, covellite and bornite.”
Tags used in scoring
No QA/QC Disclosurenegative
Release does not disclose QA/QC — lab certification, CP/QP sign-off and assay protocols cannot be checked from this document.
Why it applies: qaqc_disclosed is not 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
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: "MORE MINING NEWS Artemis Gold Agrees to Acquire Vista Gold, Adding an Advanced Stage Gold Development Asset in Australia"
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.