# Resources Top 5: Arrow expanding iron ore coverage, Encounter hits highest niobium grade yet Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57 Original source: https://stockhead.com.au/resources/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium-grade-yet/ Publisher: stockhead Original announcement: 2026-09-18T06:32:58.000Z Analysis by Minestarters Atlas Atlas analysis published: 2026-09-18T07:03:21.330Z Atlas analysis updated: 2026-09-18T07:03:21.330Z - Company: Stockhead - Ticker: Unavailable - Exchange: Unavailable - Region: Unavailable - Primary commodity: Unavailable - Secondary commodities: None reported - Document categories: Drill results, Resource update, Other - Extracted: 2026-09-18 07:03:21 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary A summary of top resource news for September 18, 2026, featuring high-grade niobium results from Encounter Resources, copper-gold drilling at Solstice Minerals, and a new fluorspar discovery by OD6 Metals. Reasoning: The document is a news aggregator summarizing several significant mining announcements including high-grade niobium, copper-gold intercepts, and a new fluorspar discovery. - Positive factor: multiple high-grade drill intercepts reported - Positive factor: new mineral discovery at OD6 - Positive factor: resource expansion potential for Encounter - Negative factor: aggregator content summarizing multiple companies Facts used in scoring: 14 ## Classification and evidence **Bonanza Intercept** Polarity: positive Definition: Exceptionally high-grade zone, well above the deposit-type norm. Why it applies: 10.4% Nb2O5 is an exceptionally high grade for niobium. Evidence · text > 13m at 10.4% Nb2O5 **Inferred Resource** Polarity: negative Definition: Speculative category — limited drilling, geological continuity assumed but not confirmed. Cannot support economic studies alone. Why it applies: The Green deposit resource is stated as inferred. Evidence · text > The Green deposit has an inferred resource ## Extracted facts Stored fact records: 14. Some facts used in scoring do not have a stored record. ## Drill Results (12) ### Fact 1 [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-drill-facts-0) Aileron · niobium Needs review: drill\_no\_hole\_id #### Identity - Project: Aileron - Commodity: niobium - Region: australia\_wa - Reported Region: australia\_wa #### Geometry - Grade: 5 - Grade Unit: % - Intercept: 51 m - From: 63 m - To: 114 m - Intercept Depth: 63 m #### Classification - Sample Type: drill - Group ID: Aileron:63-114 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: 5% Nb2O5 is an exceptionally high grade for niobium. - Positive factor: highest grade niobium intersection to date Evidence · text > 51m grading 5% niobium pentoxide from 63m #### 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/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-drill-facts-1) Aileron · niobium Needs review: drill\_no\_hole\_id #### Identity - Project: Aileron - Commodity: niobium - Region: australia\_wa - Reported Region: australia\_wa #### Geometry - Grade: 10.4 - Grade Unit: % - Intercept: 13 m #### Classification - Sample Type: drill #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: Yes - Review Reason: drill\_no\_hole\_id - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: 10.4% Nb2O5 is a very high grade intercept. - Positive factor: high-grade sub-interval Evidence · text > including 13m at 10.4% Nb2O5 #### 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 ### NANRCD033 [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-drill-facts-2) Nanadie · copper #### Identity - Hole ID: NANRCD033 - Project: Nanadie - Commodity: copper - Region: wa's goldfields - Reported Region: wa's goldfields #### Geometry - Grade: 0.59 - Grade Unit: % - Intercept: 48 m - From: 334.8 m - To: 382.8 m - Intercept Depth: 334.8 m #### Classification - Sample Type: drill - Group ID: NANRCD033:334.8-382.8 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: Broad copper intersection reported beyond known resource. - Positive factor: intercepts well beyond resource boundary Evidence · text > NANRCD033 include 48m grading 0.59% Cu #### 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 ### NANRCD033 [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-drill-facts-3) Nanadie · gold #### Identity - Hole ID: NANRCD033 - Project: Nanadie - Commodity: gold - Region: wa's goldfields - Reported Region: wa's goldfields #### Geometry - Grade: 0.16 - Grade Unit: g/t - Intercept: 48 m - From: 334.8 m - To: 382.8 m - Intercept Depth: 334.8 m #### Classification - Sample Type: drill - Group ID: NANRCD033:334.8-382.8 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: Gold grade is relatively low. Evidence · text > 48m grading 0.59% Cu and 0.16g/t Au #### 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 ### NANRCD033 [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-drill-facts-4) Nanadie · copper #### Identity - Hole ID: NANRCD033 - Project: Nanadie - Commodity: copper - Region: wa's goldfields - Reported Region: wa's goldfields #### Geometry - Grade: 0.71 - Grade Unit: % - Intercept: 52 m - From: 406 m - To: 458 m - Intercept Depth: 406 m #### Classification - Sample Type: drill - Group ID: NANRCD033:406-458 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: Stronger copper grade than previous intercept. - Positive factor: higher grade intercept Evidence · text > 52m at 0.71% Cu #### 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 ### NANRCD033 [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-drill-facts-5) Nanadie · gold #### Identity - Hole ID: NANRCD033 - Project: Nanadie - Commodity: gold - Region: wa's goldfields - Reported Region: wa's goldfields #### Geometry - Grade: 0.13 - Grade Unit: g/t - Intercept: 52 m - From: 406 m - To: 458 m - Intercept Depth: 406 m #### Classification - Sample Type: drill - Group ID: NANRCD033:406-458 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: Low gold grade. Evidence · text > 52m at 0.71% Cu and 0.13g/t Au #### 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 ### NANRCD033 [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-drill-facts-6) Nanadie · copper #### Identity - Hole ID: NANRCD033 - Project: Nanadie - Commodity: copper - Region: wa's goldfields - Reported Region: wa's goldfields #### Geometry - Grade: 1.79 - Grade Unit: % - Intercept: 6 m - From: 408 m - To: 414 m - Intercept Depth: 408 m #### Classification - Sample Type: drill - Group ID: NANRCD033:408-414 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: High grade sub-interval within the 52m intercept. - Positive factor: high grade sub-interval Evidence · text > 6m at 1.79% Cu #### 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 ### NANRCD033 [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-drill-facts-7) Nanadie · gold #### Identity - Hole ID: NANRCD033 - Project: Nanadie - Commodity: gold - Region: wa's goldfields - Reported Region: wa's goldfields #### Geometry - Grade: 0.37 - Grade Unit: g/t - Intercept: 6 m - From: 408 m - To: 414 m - Intercept Depth: 408 m #### Classification - Sample Type: drill - Group ID: NANRCD033:408-414 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: Sub-interval gold grade. Evidence · text > 0.37g/t Au from 408m #### 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 ### NANRCD009 [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-drill-facts-8) Nanadie · copper #### Identity - Hole ID: NANRCD009 - Project: Nanadie - Commodity: copper - Region: wa's goldfields - Reported Region: wa's goldfields #### Geometry - Grade: 0.74 - Grade Unit: % - Intercept: 28.3 m - From: 334.8 m - To: 363.1 m - Intercept Depth: 334.8 m #### Classification - Sample Type: drill - Group ID: NANRCD009:334.8-363.1 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: Good copper grade and width. - Positive factor: demonstrates system widening Evidence · text > 28.3m at 0.74% Cu #### 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 ### NANRCD009 [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-drill-facts-9) Nanadie · gold #### Identity - Hole ID: NANRCD009 - Project: Nanadie - Commodity: gold - Region: wa's goldfields - Reported Region: wa's goldfields #### Geometry - Grade: 0.21 - Grade Unit: g/t - Intercept: 28.3 m - From: 334.8 m - To: 363.1 m - Intercept Depth: 334.8 m #### Classification - Sample Type: drill - Group ID: NANRCD009:334.8-363.1 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: Gold grade. Evidence · text > 28.3m at 0.74% Cu and 0.21g/t Au #### 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 ### NANRCD009 [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-drill-facts-10) Nanadie · copper #### Identity - Hole ID: NANRCD009 - Project: Nanadie - Commodity: copper - Region: wa's goldfields - Reported Region: wa's goldfields #### Geometry - Grade: 0.55 - Grade Unit: % - Intercept: 43.8 m - From: 514.2 m - To: 558 m - Intercept Depth: 514.2 m #### Classification - Sample Type: drill - Group ID: NANRCD009:514.2-558 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: Moderate copper grade. Evidence · text > 43.8m at 0.55% Cu #### 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 ### NANRCD009 [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-drill-facts-11) Nanadie · gold #### Identity - Hole ID: NANRCD009 - Project: Nanadie - Commodity: gold - Region: wa's goldfields - Reported Region: wa's goldfields #### Geometry - Grade: 0.19 - Grade Unit: g/t - Intercept: 43.8 m - From: 514.2 m - To: 558 m - Intercept Depth: 514.2 m #### Classification - Sample Type: drill - Group ID: NANRCD009:514.2-558 #### QA/QC - QA/QC Disclosed: Yes #### Review - Needs Review: No - Interp. Status: scored - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: Low gold grade. Evidence · text > 43.8m at 0.55% Cu and 0.19g/t Au #### 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 (2) ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-resource-facts-12) Aileron · niobium #### Identity - Project: Aileron - Commodity: niobium - Region: australia\_wa - Reported Region: Western Australia #### Resource scope - Estimate type: resource - Resource group id: resource:b6444bdc56d620f784c2 #### Resource Data - Category: inferred - Tonnes: 19000000 - Grade: 1.6 - Grade Unit: % Nb2O5 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: Existing inferred resource component. Evidence · text > The Green deposit has an inferred resource of 19Mt grading 1.6% Nb2O5 #### 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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported ### inferred [Link to this fact](https://atlas-staging.minestarters.com/news/resources-top-5-arrow-expanding-iron-ore-coverage-encounter-hits-highest-niobium--23ac109d-9c92-44a4-9b84-47181b6e0a57#fact-resource-facts-13) Aileron · niobium #### Identity - Project: Aileron - Commodity: niobium - Region: australia\_wa - Reported Region: Western Australia #### Resource scope - Estimate type: resource - Resource group id: resource:d6acf89baeb62d6e06e1 #### Resource Data - Category: inferred - Tonnes: 100000000 - Grade: 0.71 - Grade Unit: % Nb2O5 #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2026-09-18T00:00:00.000Z Reasoning: Broader resource component. Evidence · text > within a broader 100Mt at 0.71% Nb2O5 #### 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 **No Contained Metal** Polarity: negative Definition: Tonnage and grade reported but contained metal not calculated or disclosed — incomplete reporting. Why it applies: contained\_metal was not reported ## 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.