# Cobra’s Manna Hill Footprint Grows as Two New Copper Skarns Emerge Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/cobra-s-manna-hill-footprint-grows-as-two-new-copper-skarns-emerge--c92f388c-63a4-47c9-959b-458a094d07c0 Original source: https://www.cruxinvestor.com/posts/cobras-manna-hill-footprint-grows-as-two-new-copper-skarns-emerge Publisher: cruxinvestor Original announcement: 2026-10-10T00:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-10-10T13:17:24.607Z Atlas analysis updated: 2026-10-10T13:17:24.607Z - Company: Cobra Resources plc - Ticker: COBR - Exchange: Unavailable - Region: South Australia - Primary commodity: Copper - Secondary commodities: Gold - Document categories: Drill results, Other - Extracted: 2026-10-10 13:17:25 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary Cobra Resources has extended copper anomalism at the Blue Rose prospect to over 2.2km and identified two new skarn units, Shadow Rose and Neptune Rose, at the Manna Hill project. While visual and pXRF observations show significant scale and continuity, laboratory assays are still pending and expected in 4-6 weeks. Reasoning: The document reports significant geological expansion and new targets via visual/pXRF, but lacks the assay confirmation required for high-confidence economic assessment. - Positive factor: extension of copper anomalism to 2.2km strike - Positive factor: identification of two new skarn units \(Shadow Rose and Neptune Rose\) - Positive factor: continuous anomalism up to 60m in Shadow Rose holes - Positive factor: all three zones remain open - Negative factor: current results are qualitative \(visual/pXRF\) and not laboratory assays - Negative factor: true widths expected to be narrower than downhole lengths - Negative factor: laboratory turnaround in Australia is currently slow Low confidence — this extraction should be reviewed alongside the original source. Facts used in scoring: 9 ## Classification and evidence **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: The drilling at Blue Rose West \(MHRC0029\) extended the copper anomalism by 600m to beyond 2.2km strike. Evidence · text > extended copper anomalism at Blue Rose by 600m to beyond 2.2km of strike **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: The current programme results are based on visual and pXRF observations; laboratory assays are still pending. Evidence · text > No grades have been reported from this programme. Its announcement states that visual observations are qualitative and that pXRF readings are semi-quantitative. ## Extracted facts Stored fact records: 9. Some facts used in scoring do not have a stored record. ## Drill Results (9) ### RABR822 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-s-manna-hill-footprint-grows-as-two-new-copper-skarns-emerge--c92f388c-63a4-47c9-959b-458a094d07c0#fact-drill-facts-0) Manna Hill · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: RABR822 - Project: Manna Hill - Commodity: copper - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 2.2 - Grade Unit: % - Intercept: 47 m - From: 11 m - To: 58 m - Intercept Depth: 11 m #### Classification - Sample Type: drill - Group ID: RABR822:11-58 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-10T00:00:00.000Z Reasoning: Historical assayed intersection providing context for the deposit's potential. - Positive factor: strong grade of 2.2% Cu Evidence · text > 47m at 2.2% Cu and 0.76 g/t Au from 11m in historic hole RABR822 #### Tags used in scoring **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: qaqc\_disclosed is 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release **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: "TL;DR Cobra Resources has extended copper anomalism at Blue Rose, part of its Manna Hill Copper Project in South Austral" ### RABR822 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-s-manna-hill-footprint-grows-as-two-new-copper-skarns-emerge--c92f388c-63a4-47c9-959b-458a094d07c0#fact-drill-facts-1) Manna Hill · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: RABR822 - Project: Manna Hill - Commodity: gold - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 0.76 - Grade Unit: g/t - Intercept: 47 m - From: 11 m - To: 58 m - Intercept Depth: 11 m #### Classification - Sample Type: drill - Group ID: RABR822:11-58 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes #### Dates - Event date: 2026-10-10T00:00:00.000Z Reasoning: Historical gold grade reported alongside copper. Evidence · text > 47m at 2.2% Cu and 0.76 g/t Au from 11m in historic hole RABR822 #### Tags used in scoring **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: qaqc\_disclosed is 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release **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: "TL;DR Cobra Resources has extended copper anomalism at Blue Rose, part of its Manna Hill Copper Project in South Austral" ### MHRC0018 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-s-manna-hill-footprint-grows-as-two-new-copper-skarns-emerge--c92f388c-63a4-47c9-959b-458a094d07c0#fact-drill-facts-2) Manna Hill · copper Historical result Needs review: historical\_restatement #### Identity - Hole ID: MHRC0018 - Project: Manna Hill - Commodity: copper - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 1.02 - Grade Unit: % - Intercept: 74 m - From: 70 m - To: 144 m - Intercept Depth: 70 m #### Classification - Sample Type: drill - Group ID: MHRC0018:70-144 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes - Historical Source Date: 2026-01-01T00:00:00.000Z #### Dates - Event date: 2026-10-10T00:00:00.000Z Reasoning: Historical drilling from January 2026. - Positive factor: thick 74m intercept Evidence · text > 74m at 1.02% Cu and 0.25 g/t Au from 70m in hole MHRC0018 #### Tags used in scoring **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: qaqc\_disclosed is 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release **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: "TL;DR Cobra Resources has extended copper anomalism at Blue Rose, part of its Manna Hill Copper Project in South Austral" ### MHRC0018 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-s-manna-hill-footprint-grows-as-two-new-copper-skarns-emerge--c92f388c-63a4-47c9-959b-458a094d07c0#fact-drill-facts-3) Manna Hill · gold Historical result Needs review: historical\_restatement #### Identity - Hole ID: MHRC0018 - Project: Manna Hill - Commodity: gold - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 0.25 - Grade Unit: g/t - Intercept: 74 m - From: 70 m - To: 144 m - Intercept Depth: 70 m #### Classification - Sample Type: drill - Group ID: MHRC0018:70-144 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Interp. Status: scored - Historical: Yes - Historical Source Date: 2026-01-01T00:00:00.000Z #### Dates - Event date: 2026-10-10T00:00:00.000Z Reasoning: Historical gold grade reported alongside copper. Evidence · text > 74m at 1.02% Cu and 0.25 g/t Au from 70m in hole MHRC0018 #### Tags used in scoring **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: qaqc\_disclosed is 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 **Stale Data Re-release** Polarity: negative Definition: Historical results re-announced with no new assays or reinterpretation — low genuine novelty. Why it applies: the fact restates a prior release **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: "TL;DR Cobra Resources has extended copper anomalism at Blue Rose, part of its Manna Hill Copper Project in South Austral" ### MHRC0029 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-s-manna-hill-footprint-grows-as-two-new-copper-skarns-emerge--c92f388c-63a4-47c9-959b-458a094d07c0#fact-drill-facts-4) Manna Hill · copper #### Identity - Hole ID: MHRC0029 - Project: Manna Hill - Commodity: copper - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Intercept: 32 m - From: 52 m - To: 84 m - Intercept Depth: 52 m #### Classification - Sample Type: drill - Group ID: MHRC0029:52-84 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: low\_confidence - Historical: No #### Dates - Event date: 2026-10-10T00:00:00.000Z Reasoning: New step-out hole showing visual copper anomalism but lacking assay confirmation. - Positive factor: 32m anomalous interval - Negative factor: no laboratory grade reported - Negative factor: results are qualitative/pXRF only Evidence · text > hole MHRC0029 intersected anomalous copper over 32m from 52m #### Tags used in scoring **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: qaqc\_disclosed is 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: "TL;DR Cobra Resources has extended copper anomalism at Blue Rose, part of its Manna Hill Copper Project in South Austral" ### MHRC0025 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-s-manna-hill-footprint-grows-as-two-new-copper-skarns-emerge--c92f388c-63a4-47c9-959b-458a094d07c0#fact-drill-facts-5) Manna Hill · copper #### Identity - Hole ID: MHRC0025 - Project: Manna Hill - Commodity: copper - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Intercept: 60 m - From: 10 m - To: 50 m - Intercept Depth: 10 m #### Classification - Sample Type: drill - Group ID: MHRC0025:10-50 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: low\_confidence - Historical: No #### Dates - Event date: 2026-10-10T00:00:00.000Z Reasoning: New hole in Shadow Rose showing continuous copper oxides and sulphides via visual/pXRF. - Positive factor: 60m continuous anomalism - Negative factor: no laboratory grade reported - Negative factor: results are qualitative/pXRF only Evidence · text > MHRC0025 logged strong copper oxides from 10m to 50m and copper sulphides to 70m #### Tags used in scoring **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: qaqc\_disclosed is 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: "TL;DR Cobra Resources has extended copper anomalism at Blue Rose, part of its Manna Hill Copper Project in South Austral" ### MHRC0024 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-s-manna-hill-footprint-grows-as-two-new-copper-skarns-emerge--c92f388c-63a4-47c9-959b-458a094d07c0#fact-drill-facts-6) Manna Hill · copper #### Identity - Hole ID: MHRC0024 - Project: Manna Hill - Commodity: copper - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Intercept: 6 m - From: 56 m - To: 62 m - Intercept Depth: 56 m #### Classification - Sample Type: drill - Group ID: MHRC0024:56-62 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: low\_confidence - Historical: No #### Dates - Event date: 2026-10-10T00:00:00.000Z Reasoning: New hole in Neptune Rose showing anomalous copper sulphides via visual/pXRF. - Positive factor: intersected anomalous copper sulphides - Negative factor: no laboratory grade reported - Negative factor: results are qualitative/pXRF only Evidence · text > MHRC0024 intersected anomalous copper sulphides from 56m to 62m #### Tags used in scoring **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: qaqc\_disclosed is 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: "TL;DR Cobra Resources has extended copper anomalism at Blue Rose, part of its Manna Hill Copper Project in South Austral" ### MHRC0024 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-s-manna-hill-footprint-grows-as-two-new-copper-skarns-emerge--c92f388c-63a4-47c9-959b-458a094d07c0#fact-drill-facts-7) Manna Hill · copper #### Identity - Hole ID: MHRC0024 - Project: Manna Hill - Commodity: copper - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Intercept: 10 m - From: 104 m - To: 114 m - Intercept Depth: 104 m #### Classification - Sample Type: drill - Group ID: MHRC0024:104-114 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: low\_confidence - Historical: No #### Dates - Event date: 2026-10-10T00:00:00.000Z Reasoning: Second anomalous interval in MHRC0024 via visual/pXRF. - Positive factor: intersected anomalous copper sulphides - Negative factor: no laboratory grade reported - Negative factor: results are qualitative/pXRF only Evidence · text > and again between 104m and 114m #### Tags used in scoring **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: qaqc\_disclosed is 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: "TL;DR Cobra Resources has extended copper anomalism at Blue Rose, part of its Manna Hill Copper Project in South Austral" ### MHRC0029 [Link to this fact](https://atlas-staging.minestarters.com/news/cobra-s-manna-hill-footprint-grows-as-two-new-copper-skarns-emerge--c92f388c-63a4-47c9-959b-458a094d07c0#fact-drill-facts-8) Manna Hill · copper #### Identity - Hole ID: MHRC0029 - Project: Manna Hill - Commodity: copper - Region: australia\_sa - Reported Region: australia\_sa - Ticker: COBR #### Geometry - Grade: 1.02 - Grade Unit: % - Intercept: 74 m - From: 70 m - To: 144 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: low\_confidence - Historical: No #### Dates - Event date: 2026-10-10T00:00:00.000Z Reasoning: New step-out hole showing visual copper anomalism but lacking assay confirmation. - Positive factor: 32m anomalous interval - Negative factor: no laboratory grade reported - Negative factor: results are qualitative/pXRF only Evidence · text > 74m at 1.02% Cu from 70m #### Tags used in scoring **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: qaqc\_disclosed is 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: "TL;DR Cobra Resources has extended copper anomalism at Blue Rose, part of its Manna Hill Copper Project in South Austral" ## 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.