# Mount Ridley pushes high-grade scandium beyond Grass Patch resources Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/mount-ridley-pushes-high-grade-scandium-beyond-grass-patch-resources--688f6aea-d7f7-44ae-b205-c1092b77e553 Original source: https://stockhead.com.au/resources/mount-ridley-pushes-high-grade-scandium-beyond-grass-patch-resources/ Publisher: stockhead Original announcement: 2026-09-23T02:45:10.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-09-23T03:03:57.475Z Atlas analysis updated: 2026-09-23T03:03:57.475Z - Company: Mount Ridley Mines - Ticker: MRD - Exchange: Unavailable - Region: Unavailable - Primary commodity: Scandium - Secondary commodities: Gallium, Rare earths - Document categories: Drill results, Resource update, Metallurgy - Extracted: 2026-09-23 03:03:58 UTC Narrative sentiment: 0.80 · Bullish ## Minestarters Atlas summary Mount Ridley Mines has reported Phase 2 re-assay results that extend scandium mineralisation up to 8km beyond the current Grass Patch resource boundaries. The new intercepts, including up to 124.6ppm Sc2O3, sit above existing resource grades and support a broader mineralisation system. Additionally, proprietary Selectro testwork reported a 91.8% scandium recovery from a single composite. Reasoning: Phase 2 re-assays have successfully extended the scandium footprint significantly beyond existing resource limits with high-grade intercepts. - Positive factor: High-grade scandium intercepts extending 8km beyond current resource boundaries - Positive factor: New intercepts exceed current Block 1 and Block 2 resource grades - Positive factor: Strong metallurgical recovery results \(91.8%\) reported via proprietary Selectro process - Positive factor: Significant resource scale \(946Mt\) provides large footprint for expansion - Negative factor: Resource is currently 100% Inferred category - Negative factor: Metallurgical results are laboratory scale and do not establish commercial economics Facts used in scoring: 6 ## Classification and evidence **Step-Out Extension** Polarity: positive Definition: Mineralization extended beyond the previously known limit. Why it applies: Phase 2 re-assays define mineralisation up to 8km outside current resource boundaries. Evidence · text > Phase 2 re-assays extend high-grade scandium 8km beyond current resources **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The existing resource is stated to be entirely in the inferred category. Evidence · text > all in the inferred category **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: Reported 91.8% scandium recovery via Selectro testwork. Evidence · text > reported 91.8% scandium recovery **Single Domain Only** Polarity: negative Definition: Testing limited to one composite or domain — representativeness not established. Why it applies: only one composite was tested ## Extracted facts Stored fact records: 6. Some facts used in scoring do not have a stored record. ## Drill Results (4) ### Fact 1 [Link to this fact](https://atlas-staging.minestarters.com/news/mount-ridley-pushes-high-grade-scandium-beyond-grass-patch-resources--688f6aea-d7f7-44ae-b205-c1092b77e553#fact-drill-facts-0) Grass Patch · scandium Needs review: drill\_no\_hole\_id #### Identity - Project: Grass Patch - Commodity: scandium - Region: australia - Reported Region: australia - Ticker: MRD #### Geometry - Grade: 102.09 - Grade Unit: ppm Sc2O3 - Intercept: 40 m - From: 18 m - To: 58 m - Intercept Depth: 18 m #### Classification - Sample Type: drill - Group ID: Grass\_Patch:18-58 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: 40m at 102.09ppm Sc2O3 is a strong intercept exceeding Block 1/2 averages. - Positive factor: High grade relative to existing resource Evidence · text > 40m at 102.09ppm Sc2O3 from 18m #### 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 ### Fact 2 [Link to this fact](https://atlas-staging.minestarters.com/news/mount-ridley-pushes-high-grade-scandium-beyond-grass-patch-resources--688f6aea-d7f7-44ae-b205-c1092b77e553#fact-drill-facts-1) Grass Patch · scandium Needs review: drill\_no\_hole\_id #### Identity - Project: Grass Patch - Commodity: scandium - Region: australia - Reported Region: australia - Ticker: MRD #### Geometry - Grade: 119.41 - Grade Unit: ppm Sc2O3 - Intercept: 22 m - From: 12 m - To: 34 m - Intercept Depth: 12 m #### Classification - Sample Type: drill - Group ID: Grass\_Patch:12-34 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: 22m at 119.41ppm Sc2O3 is a strong intercept. - Positive factor: High grade relative to existing resource Evidence · text > 22m at 119.41ppm from 12m #### 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 ### Fact 3 [Link to this fact](https://atlas-staging.minestarters.com/news/mount-ridley-pushes-high-grade-scandium-beyond-grass-patch-resources--688f6aea-d7f7-44ae-b205-c1092b77e553#fact-drill-facts-2) Grass Patch · scandium Needs review: drill\_no\_hole\_id #### Identity - Project: Grass Patch - Commodity: scandium - Region: australia - Reported Region: australia - Ticker: MRD #### Geometry - Grade: 113.38 - Grade Unit: ppm Sc2O3 - Intercept: 19 m - From: 20 m - To: 39 m - Intercept Depth: 20 m #### Classification - Sample Type: drill - Group ID: Grass\_Patch:20-39 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: 19m at 113.38ppm Sc2O3 is a strong intercept. - Positive factor: High grade relative to existing resource Evidence · text > 19m at 113.38ppm from 20m #### 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 ### Fact 4 [Link to this fact](https://atlas-staging.minestarters.com/news/mount-ridley-pushes-high-grade-scandium-beyond-grass-patch-resources--688f6aea-d7f7-44ae-b205-c1092b77e553#fact-drill-facts-3) Grass Patch · scandium Needs review: drill\_no\_hole\_id #### Identity - Project: Grass Patch - Commodity: scandium - Region: australia - Reported Region: australia - Ticker: MRD #### Geometry - Grade: 124.6 - Grade Unit: ppm Sc2O3 - Intercept: 13 m - From: 16 m - To: 29 m - Intercept Depth: 16 m #### Classification - Sample Type: drill - Group ID: Grass\_Patch:16-29 #### QA/QC - QA/QC Disclosed: Yes - QA/QC Methods: standards, blanks #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: 13m at 124.6ppm Sc2O3 is a strong intercept. - Positive factor: High grade relative to existing resource Evidence · text > 13m at 124.6ppm from 16m #### 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 ## Resource Estimates (1) ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/mount-ridley-pushes-high-grade-scandium-beyond-grass-patch-resources--688f6aea-d7f7-44ae-b205-c1092b77e553#fact-resource-facts-4) scandium #### Identity - Commodity: scandium - Ticker: MRD #### Resource scope - Estimate type: resource - Reporting standards: jorc - Resource group id: resource:028f3b9cc53852f04fa0 #### Resource Data - Category: inferred - Tonnes: 946000000 - Grade: 50.1 - Grade Unit: ppm - Contained Metal: 47357 - Contained Unit: t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: Existing resource is large but entirely in the inferred category. - Positive factor: Large scale resource - Negative factor: All inferred Evidence · text > 946Mt at 50.1ppm scandium for 47,357t of contained scandium , all in the inferred category #### Tags used in scoring **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: category is "inferred" **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 **JORC Compliant** Polarity: positive Definition: Resource estimate prepared in compliance with JORC Code \(Australia\) — high reporting standard. Why it applies: reporting\_standards includes jorc **No QP/CP Disclosure** Polarity: negative Definition: No Qualified Person or Competent Person named — lower credibility for the estimate. A QP/CP should be a member of a recognized professional association with relevant experience. Why it applies: no Qualified or Competent Person is named anywhere in the release ## Metallurgical Results (1) ### Selectro testwork [Link to this fact](https://atlas-staging.minestarters.com/news/mount-ridley-pushes-high-grade-scandium-beyond-grass-patch-resources--688f6aea-d7f7-44ae-b205-c1092b77e553#fact-metallurgical-facts-5) scandium #### Identity - Commodity: scandium - Ticker: MRD #### Test Work - Program Status: preliminary - Test Type: Selectro testwork - Processing Route: Selectro - Sample: single unbeneficiated Grass Patch composite #### Recovery - Recovery: 91.8 % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-23T00:00:00.000Z Reasoning: 91.8% recovery is strong but limited to laboratory scale testing. - Positive factor: High recovery - Negative factor: Laboratory scale only Evidence · text > Selectro testwork reported 91.8% scandium recovery from a single unbeneficiated Grass Patch composite ## 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.