# 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--96a8421e-f0fb-400c-bf81-2fb373f15d1a Original source: https://www.juniorminingnetwork.com/junior-miner-news/press-releases/2105-tsx-venture/algr/212521-algo-grande-copper-core-testing-shows-mineralized-skarn-is-denser-and-more-chargeable-than-host-rocks-ground-gravity-survey-to-begin-at-adelita.html Publisher: jmn Original announcement: 2026-10-07T04:06:16.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-07T22:23:30.047Z Atlas analysis updated: 2026-10-07T22:23:30.047Z - 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 Narrative sentiment: 0.30 · Bullish ## Minestarters Atlas 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 factor: Petrophysical testing confirms mineralized skarn is denser and more chargeable than host rocks - Positive factor: Visual identification of copper sulfides \(chalcopyrite, covellite, bornite\) in new skarn zone - Positive factor: Planned ground gravity survey to de-risk structural targets - Negative factor: Assays for the new skarn interval are still pending - Negative factor: True widths for the reported interval are not yet known - Negative factor: Petrophysical results are based on a small, selected set of samples Facts used in scoring: 1 ## 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 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 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 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-PH2-003 [Link to this fact](https://atlas-staging.minestarters.com/news/algo-grande-copper-core-testing-shows-mineralized-skarn-is-denser-and-more-charg--96a8421e-f0fb-400c-bf81-2fb373f15d1a#fact-drill-facts-0) 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: 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 factor: Visual presence of chalcopyrite, covellite, and bornite - Negative factor: Assays are pending - Negative factor: True width not yet known - Negative factor: 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 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 **Nearology Play** Polarity: neutral Definition: 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.