# Stuhini Reports Strong Metallurgical Recoveries from Surface Mini-Bulk Sample at Silver Surprise Zone, Ruby Creek Project Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/stuhini-reports-strong-metallurgical-recoveries-from-surface-mini-bulk-sample-at--bca62750-5b2e-45e4-8f10-c9d04a148b2f Original source: https://money.tmx.com/en/quote/NOVA/news/8595922364166604/stuhini-reports-strong-metallurgical-recoveries-from-surface-mini-bulk-sample-at Publisher: tmx Original announcement: 2025-12-01T13:00:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Stuhini Exploration Ltd. - Ticker: STU - Exchange: TSX - Region: British Columbia - Primary commodity: Silver - Secondary commodities: Molybdenum - Document categories: Metallurgy - Extracted: 2026-08-22 03:29:02 UTC Narrative sentiment: 0.90 · Bullish ## Minestarters Atlas summary Stuhini Exploration reported highly favorable metallurgical results from a 719 kg surface mini-bulk sample at the Silver Surprise Zone. Direct smelting achieved 95% silver recovery from a 4,200 g/t silver feed, while gravity separation provided a preliminary 15% recovery. Reasoning: The direct smelting test achieved an exceptional 95% silver recovery from an ultra-high-grade \(4,200 g/t\) mini-bulk sample, suggesting a low-complexity, high-margin processing route. - Positive factor: exceptional silver recovery - Positive factor: high-grade feed - Positive factor: simple processing route Facts used in scoring: 3 ## Classification and evidence **High Recovery** Polarity: positive Definition: Recovery at or above the exceptional band for the commodity and processing route. Why it applies: Direct smelting achieved 95% silver recovery, which is exceptional. Evidence · text > Direct smelting test achieved 95% silver recovery **Free Milling** Polarity: positive Definition: Simple, clean ore amenable to standard processing without oxidation. Why it applies: The high native silver content and simple mineralogy allow for high recovery via simple smelting or gravity. Evidence · text > high native silver content and simple quartz-hosted mineralogy make the mineralization particularly well-suited **Bench Scale Only** Polarity: negative Definition: Only preliminary bench tests completed — no locked-cycle or pilot work. Why it applies: The tests were performed on a mini-bulk sample using a ball mill and a shaking table. Evidence · text > processed under the direction of metallurgist Rino Mihoc of Ruby Gold Ltd. The sample was milled in a 3' x 3' Denver ball mill ## Extracted facts Stored fact records: 3. Some facts used in scoring do not have a stored record. ## Metallurgical Results (3) ### direct smelting [Link to this fact](https://atlas-staging.minestarters.com/news/stuhini-reports-strong-metallurgical-recoveries-from-surface-mini-bulk-sample-at--bca62750-5b2e-45e4-8f10-c9d04a148b2f#fact-metallurgical-facts-0) silver #### Identity - Commodity: silver - Ticker: STU #### Test Work - Program Status: preliminary - Test Type: direct smelting - Processing Route: direct smelting - Sample: 1585 lb \(719 kg\) surface mini-bulk sample from Silver Surprise Zone #### Recovery - Recovery: 95 % - Recovery Basis: to\_payable\_metal - Head Grade: 4200 - Head Grade Unit: g/t #### Lab - Laboratory: Ruby Gold Ltd. - Consultant: Rino Mihoc #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-12-01T00:00:00.000Z Reasoning: 95% recovery on 4,200 g/t Ag is an exceptional result for a direct smelting test. - Positive factor: exceptional recovery - Positive factor: high grade Evidence · text > Direct smelting test achieved 95% silver recovery ### gravity [Link to this fact](https://atlas-staging.minestarters.com/news/stuhini-reports-strong-metallurgical-recoveries-from-surface-mini-bulk-sample-at--bca62750-5b2e-45e4-8f10-c9d04a148b2f#fact-metallurgical-facts-1) silver #### Identity - Commodity: silver - Ticker: STU #### Test Work - Program Status: preliminary - Test Type: gravity - Processing Route: gravity separation - Sample: 1585 lb \(719 kg\) surface mini-bulk sample via gravity separation #### Recovery - Recovery: 15 % - Recovery Basis: to\_concentrate - Head Grade: 4200 - Head Grade Unit: g/t #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-12-01T00:00:00.000Z Reasoning: 15% recovery via gravity is low but expected for a single-pass shaking table test on coarse material. - Positive factor: simple process - Negative factor: low recovery Evidence · text > Gravity separation using a single pass on a Gemini shaking table recovered 15% of the contained silver ### Fact 3 [Link to this fact](https://atlas-staging.minestarters.com/news/stuhini-reports-strong-metallurgical-recoveries-from-surface-mini-bulk-sample-at--bca62750-5b2e-45e4-8f10-c9d04a148b2f#fact-metallurgical-facts-2) silver #### Identity - Commodity: silver - Ticker: STU #### Test Work - Sample: Gravity concentrate from mini-bulk sample #### Recovery - Conc. Grade: 10 - Conc. Grade Unit: % #### Review - Needs Review: No - Historical: No #### Dates - Event date: 2025-12-01T00:00:00.000Z Reasoning: Concentrate grade of 10% Ag is reported from the gravity table pass. Evidence · text > concentrate from a single pass on the gravity table graded approximately 10% silver ## 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.