# Algo Grande Copper Core Testing Shows Mineralized Skarn is Denser and More Chargeable Than Host Rocks; Ground Gravity Survey to Begin at Adelita Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/algo-grande-copper-core-testing-shows-mineralized-skarn-is-denser-and-more-charg--6ca7a96b-df70-44f2-87c9-ff4cc6a9e465 Original source: https://www.accessnewswire.com/newsroom/en/metals-and-mining/algo-grande-copper-core-testing-shows-mineralized-skarn-is-denser-and-more-charge-1234131 Publisher: accesswire Original announcement: 2026-10-07T21:45:46.092Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-07T21:48:39.302Z Atlas analysis updated: 2026-10-07T21:48:39.302Z - Company: Algo Grande Copper Corp. - Ticker: ALGR - Exchange: Unavailable - Region: Sonora, Mexico - Primary commodity: Copper - Secondary commodities: Silver, Gold - Document categories: Other, Drill results - Extracted: 2026-10-07 21:48:40 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary Algo Grande Copper Corp. reported petrophysical testing results showing that mineralized skarn at the Adelita Project is significantly denser and more chargeable than host rocks. The company also announced a planned ground gravity survey to begin October 22, 2026, to test structural targets along a 7-kilometre corridor, following the visual identification of copper sulfides in hole AG-CG-PH2-003. Reasoning: The release provides significant geophysical validation \(density and chargeability\) to support upcoming exploration, alongside a new visual copper intersection, though actual assay results are pending. - Positive factor: Petrophysical testing confirms skarn is denser and more chargeable than host rocks, providing a geophysical vector - Positive factor: Visual identification of copper sulfides in new hole AG-CG-PH2-003 - Positive factor: Planned ground gravity survey to de-risk structural targets along a 7km corridor - Negative factor: Assays for the new skarn intersection in AG-CG-PH2-003 are still pending - Negative factor: Petrophysical results are based on a small, selected set of samples and may not be representative Facts used in scoring: 2 ## Classification and evidence **QA/QC Disclosed** Polarity: positive Definition: 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 \(Zonge International\) used for testing. 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 Only** Polarity: negative Definition: Interval given as downhole width with no true width or drill orientation — apparent width may overstate true thickness. Why it applies: The release explicitly states that intervals for AG-CG-PH2-003 are downhole lengths and true widths are not yet known. Evidence · text > Intervals are downhole lengths; true widths are not yet known. ## Extracted facts Stored fact records: 2. Some facts used in scoring do not have a stored record. ## Drill Results (2) ### AG-CG-PH2-003 [Link to this fact](https://atlas-staging.minestarters.com/news/algo-grande-copper-core-testing-shows-mineralized-skarn-is-denser-and-more-charg--6ca7a96b-df70-44f2-87c9-ff4cc6a9e465#fact-drill-facts-0) Adelita · copper #### Identity - Hole ID: AG-CG-PH2-003 - Project: Adelita - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: ALGR #### Geometry - Intercept: 9.05 m - From: 624.45 m - To: 634.5 m - Intercept Depth: 624.45 m #### Classification - Sample Type: drill - Group ID: AG-CG-PH2-003:624.45-634.5 #### Location - CRS: WGS84 / UTM Zone 12N #### QA/QC - QP Signed: Yes - QA/QC Methods: standards #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-10-07T00:00:00.000Z Reasoning: Visual identification of multiple copper sulfides in a new target, though grades are not yet confirmed by assays. - Positive factor: Visible copper sulfides \(chalcopyrite, covellite, bornite\) logged - Negative factor: Assays are pending - Negative factor: Visual observations are preliminary and not a substitute for laboratory assays Evidence · text > intersected fault-hosted skarn at a target separate from Cerro Grande, with visible copper sulfides logged from 624.45 to 634.50 m; assays pending. #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: 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 Undisclosed** Polarity: negative Definition: High-grade interval reported without stating the cut-off grade used for compositing. Why it applies: no cutoff\_grade was stated ### AG-CG-PH2-003 [Link to this fact](https://atlas-staging.minestarters.com/news/algo-grande-copper-core-testing-shows-mineralized-skarn-is-denser-and-more-charg--6ca7a96b-df70-44f2-87c9-ff4cc6a9e465#fact-drill-facts-1) Adelita · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: AG-CG-PH2-003 - Project: Adelita - Commodity: copper - Region: mexico - Reported Region: mexico - Ticker: ALGR #### Geometry - Intercept: 29.65 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: 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: The hole intersected a skarn interval, but no grades are reported. - Positive factor: Intersected fault-hosted skarn - Negative factor: Assays are pending Evidence · text > The hole intersected fault-hosted skarn from 602.0 to 654.1 m downhole #### Tags used in scoring **No QA/QC Disclosure** Polarity: negative Definition: 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 Undisclosed** Polarity: negative Definition: 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.