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 orestocks on
- Company
- Algo Grande Copper Corp.
- Ticker
- ALGR.V
- Exchange
- Unavailable
- Region
- Sonora, Mexico
- Primary commodity
- Copper
- Secondary commodities
- Gold, Silver
- Document categories
- Other, Drill results
- Extracted
- 2026-10-07 21:49:28 UTC
Analysis by Minestarters Atlas
Atlas analysis published:
Minestarters Atlas analysis
Summary
Algo Grande reported petrophysical testing results showing mineralized skarn at Cerro Grande is significantly denser and more chargeable than host rocks. The company is launching a large-scale ground gravity survey on October 22, 2026, to test multiple structural targets along a 7-kilometre corridor. Additionally, drill hole AG-CG-PH2-003 intersected visible copper sulfides in a new skarn target, with assays pending.
Reasoning: The release provides significant geophysical/petrophysical validation for the skarn model and announces a major upcoming survey, alongside a new drill intersection with visible mineralization, though assay results are pending.
Positive factors
- Petrophysical testing confirms skarn density and chargeability contrast
- New drill hole (AG-CG-PH2-003) intersected visible copper sulfides at a new target
- Planned gravity survey will de-risk structural targets along 7km corridor
Negative factors
- Assays for new skarn intersection are still pending
- Petrophysical results are based on a small sample set (18 cores)
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 names a Qualified Person (João Rocha) and a specific laboratory (Zonge International) for the petrophysical testing.
Evidence · text
“reviewed and approved by João Rocha, EurGeol... a Qualified Person”
Nearology Playneutral
Value premise rests on proximity to a known deposit rather than own results.
Why it applies: The company is using geophysical and petrophysical data to target structural intersections along a 7km corridor related to the Cerro Grande discovery.
Evidence · text
“The combined gravity and IP data are designed to test these targets and may identify new ones.”
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 mNeeds review: ungroundedView all detailsHide details
Identity
- Hole ID
- AG-CG-PH2-003
- Project
- Adelita
- Commodity
- copper
- Region
- mexico
- Reported Region
- mexico
- Ticker
- ALGR.V
Geometry
- Intercept
- 52.1 m
- From
- 602 m
- To
- 654.1 m
- Intercept Depth
- 602 m
Classification
- Sample Type
- drill
- Group ID
- AG-CG-PH2-003:602-654.1
Location
- CRS
- WGS84 / UTM Zone 12N
QA/QC
- QP Signed
- Yes
- QA/QC Methods
- standards
Review
- Needs Review
- Yes
- Review Reason
- ungrounded
- Interp. Status
- scored
- Historical
- No
Dates
- Event date
- 2026-10-07T00:00:00.000Z
Reasoning: Intersection of visible copper sulfides in a new target is a positive exploration signal, but lacks assay confirmation.
Positive factors
- Visible copper sulfides (chalcopyrite, covellite, bornite) logged
Negative factors
- Assays are pending
- Visual observations are preliminary
Evidence · text
“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
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.