# Encouraging Diamond indicator Chemistry reported from the Arbutus kimberlite discovery, Diagras project, NT Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/encouraging-diamond-indicator-chemistry-reported-from-the-arbutus-kimberlite-dis--402c617a-32be-4f6c-b909-582652e0af0e Original source: https://money.tmx.com/en/quote/ADD/news/5412432985057776/encouraging-diamond-indicator-chemistry-reported-from-the-arbutus-kimberlite-dis Publisher: tmx Original announcement: 2022-10-03T17:15:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Arctic Star Exploration Corp. - Ticker: ADD - Exchange: TSX - Region: Northwest Territories - Primary commodity: Diamond - Secondary commodities: None reported - Document categories: Drill results, Other - Extracted: 2026-09-19 17:04:42 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Arctic Star Exploration Corp. reported highly encouraging diamond indicator mineral \(DIM\) chemistry from the Arbutus kimberlite discovery at the Diagras project in the Northwest Territories. Analysis by C.F. Mineral Research Ltd identified high-quality indicator minerals, including Lherzolite-sourced pyropes, which are associated with large diamond potential. Reasoning: The report provides highly positive geochemical indicator mineral data \(DIMs\) from core samples, which is a strong proxy for diamond potential in kimberlite discoveries, though it is not a direct diamond grade assay. - Positive factor: Excellent diamond indicator mineral \(DIM\) chemistry reported - Positive factor: Presence of Lherzolite-sourced indicators suggesting large diamond potential - Positive factor: High abundance of G10 and G1 indicators - Positive factor: Previous news release confirmed diamond bearing status - Negative factor: Low picroilmenite count \(only 4\) makes it difficult to predict oxidation state Facts used in scoring: 3 ## 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 specific laboratory \(C.F. Mineral Research Ltd\) and a Qualified Person \(Buddy Doyle, AUSIMM\). Evidence · text > analysis and classification has been completed by C.F. Mineral Research Ltd... The Qualified Person for this news release is Buddy Doyle, AUSIMM **Nearology Play** Polarity: neutral Definition: Value premise rests on proximity to a known deposit rather than own results. Why it applies: The company mentions the Arbutus kimberlite lies south of the historic Finlay kimberlite. Evidence · text > Arbutus lies to the south of the Finlay kimberlite ## Extracted facts Stored fact records: 3. Some facts used in scoring do not have a stored record. ## Drill Results (3) ### DG-2022-08 [Link to this fact](https://atlas-extractions.minestarters.com/news/encouraging-diamond-indicator-chemistry-reported-from-the-arbutus-kimberlite-dis--402c617a-32be-4f6c-b909-582652e0af0e#fact-drill-facts-0) Diagras #### Identity - Hole ID: DG-2022-08 - Project: Diagras - Region: northwest territories - Reported Region: northwest territories - Ticker: ADD #### Classification - Sample Type: drill #### Location - Location: Arbutus kimberlite - Loc. Source: document #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2022-10-03T00:00:00.000Z Reasoning: Sample contains specific indicator mineral suites \(G10\* pyrope, G1\* eclogitic garnet, Di$\* clinopyroxene\) associated with large diamond potential. - Positive factor: Contains Lherzolite-sourced minerals known for large diamonds Evidence · text > Sample DG-2022-08 weighing 970 gms contained only a single G10\* pyrope and a single G1\* eclogitic garnet. However the sample contained 92 Di\* chromites and 36 Di\* olivines. #### 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 ### DG-2022-09B [Link to this fact](https://atlas-extractions.minestarters.com/news/encouraging-diamond-indicator-chemistry-reported-from-the-arbutus-kimberlite-dis--402c617a-32be-4f6c-b909-582652e0af0e#fact-drill-facts-1) Diagras #### Identity - Hole ID: DG-2022-09B - Project: Diagras - Region: northwest territories - Reported Region: northwest territories - Ticker: ADD #### Classification - Sample Type: drill #### Location - Location: Arbutus kimberlite - Loc. Source: document #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2022-10-03T00:00:00.000Z Reasoning: High abundance of G1\* eclogitic garnets and presence of Lherzolite-sourced clinopyroxenes. - Positive factor: Dominated by G1\* eclogitic garnets from diamond bearing source Evidence · text > Sample DG-2022-09B, weighing 810 gms also only contained a single G10\* pyrope garnet and no Di\*G9/11 pyrope garnets but contained 68 Di\* chromites, 41 Di\* olivines and 67 G1\* ecologitic garnets. #### 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 ### DG-2022-09A [Link to this fact](https://atlas-extractions.minestarters.com/news/encouraging-diamond-indicator-chemistry-reported-from-the-arbutus-kimberlite-dis--402c617a-32be-4f6c-b909-582652e0af0e#fact-drill-facts-2) Diagras #### Identity - Hole ID: DG-2022-09A - Project: Diagras - Region: northwest territories - Reported Region: northwest territories - Ticker: ADD #### Classification - Sample Type: drill #### Location - Location: Arbutus kimberlite - Loc. Source: document #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2022-10-03T00:00:00.000Z Reasoning: This phase is described as being 'loaded with diamonds' and potentially containing very large diamonds due to the specific indicator mineral suite. - Positive factor: Best indicator results encountered by the lab - Positive factor: High abundance of G10\* pyropes and G1\* eclogitic garnets - Positive factor: Contains Lherzolite source of large diamonds Evidence · text > Sample DG-2022-09A weighing 1220 gms contained 73 G10\* pyropes, 110 Di\* chromites, 44 Di\* olivines, 32 G1\* ecologitic garnets. #### 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.