# Lion Rock Commences Metallurgical Testing at Past-Producing Volney Critical Minerals Project, South Dakota Canonical Atlas analysis: https://atlas-extractions.minestarters.com/news/lion-rock-commences-metallurgical-testing-at-past-producing-volney-critical-mine--57c135c8-f45e-4ba2-92f9-1ac674377227 Original source: https://money.tmx.com/en/quote/ROAR/news/6834007670593866/lion-rock-commences-metallurgical-testing-at-past-producing-volney-critical-mine Publisher: tmx Original announcement: 2026-06-09T11:20:00.000Z Analysis by Minestarters Atlas Atlas analysis published: Unknown date Atlas analysis updated: Unknown date - Company: Lion Rock Resources Inc. - Ticker: ROAR - Exchange: TSX - Region: South Dakota - Primary commodity: Lithium - Secondary commodities: Tin, Tantalum, Gold - Document categories: Metallurgy, Other - Extracted: 2026-09-18 18:36:09 UTC Narrative sentiment: 0.40 · Bullish ## Minestarters Atlas summary Lion Rock Resources has commenced a metallurgical and mineralogical testing program at the Volney critical minerals and gold project in South Dakota. The program uses large bulk samples to evaluate processing pathways for lithium, tin, and tantalum, aiming to optimize future production methods. Reasoning: The company is advancing a critical minerals project by initiating metallurgical testing using representative bulk samples, leveraging existing infrastructure and historical production context. - Positive factor: Commencement of metallurgical testing on a past-producing asset - Positive factor: Use of large bulk samples for higher quality data - Positive factor: Existing infrastructure and shallow mineralization support bulk-tonnage mining - Positive factor: Strategic location in a pro-mining US jurisdiction - Negative factor: Historical production data has not been verified by a Qualified Person Facts used in scoring: 3 ## Classification and evidence **Mill Route** Polarity: neutral Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\). Why it applies: Testing includes crushing, blending, and potential flotation/gravity separation. Evidence · text > Samples will undergo crushing, blending, and preparation followed by detailed feed characterization **Bench Scale Only** Polarity: negative Definition: Only preliminary bench tests completed — no locked-cycle or pilot work. Why it applies: The program involves bulk samples \(< 200 kg\) for preliminary testing rather than pilot-scale work. Evidence · text > Large bulk samples \(< 200 kg each\) will be collected **Gravity Route** Polarity: neutral Definition: Gravity separation forms a material part of the flowsheet. Why it applies: the document describes a gravity route \("gravity"\) **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: 3. Some facts used in scoring do not have a stored record. ## Metallurgical Results (3) ### gravity separation [Link to this fact](https://atlas-extractions.minestarters.com/news/lion-rock-commences-metallurgical-testing-at-past-producing-volney-critical-mine--57c135c8-f45e-4ba2-92f9-1ac674377227#fact-metallurgical-facts-0) Volney · lithium Historical result Needs review: historical\_restatement #### Identity - Project: Volney - Commodity: lithium - Region: south dakota - Reported Region: South Dakota - Ticker: ROAR #### Test Work - Program Status: preliminary - Test Type: gravity separation - Sample: bulk samples collected from outcropping pegmatite material #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes #### Dates - Event date: 2026-06-09T00:00:00.000Z Reasoning: Historical lithium concentrate grade provided as context for the testing program. - Negative factor: Historical data not verified by QP Evidence · text > spodumene concentrate of up to 6.3% Li₂O #### Tags used in scoring **Gravity Route** Polarity: neutral Definition: Gravity separation forms a material part of the flowsheet. Why it applies: processing\_route matches the gravity signal ### gravity separation [Link to this fact](https://atlas-extractions.minestarters.com/news/lion-rock-commences-metallurgical-testing-at-past-producing-volney-critical-mine--57c135c8-f45e-4ba2-92f9-1ac674377227#fact-metallurgical-facts-1) Volney · tin Historical result Needs review: historical\_restatement #### Identity - Project: Volney - Commodity: tin - Region: south dakota - Reported Region: South Dakota - Ticker: ROAR #### Test Work - Program Status: preliminary - Test Type: gravity separation - Sample: bulk samples collected from outcropping pegmatite material #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes #### Dates - Event date: 2026-06-09T00:00:00.000Z Reasoning: Historical tin concentrate grade provided as context for the testing program. - Negative factor: Historical data not verified by QP Evidence · text > tin concentrate of up to 62.5% Sn #### Tags used in scoring **Gravity Route** Polarity: neutral Definition: Gravity separation forms a material part of the flowsheet. Why it applies: processing\_route matches the gravity signal ### gravity separation [Link to this fact](https://atlas-extractions.minestarters.com/news/lion-rock-commences-metallurgical-testing-at-past-producing-volney-critical-mine--57c135c8-f45e-4ba2-92f9-1ac674377227#fact-metallurgical-facts-2) Volney · tantalum Historical result Needs review: historical\_restatement #### Identity - Project: Volney - Commodity: tantalum - Region: south dakota - Reported Region: South Dakota - Ticker: ROAR #### Test Work - Program Status: preliminary - Test Type: gravity separation - Sample: bulk samples collected from outcropping pegmatite material #### Review - Needs Review: Yes - Review Reason: historical\_restatement - Historical: Yes #### Dates - Event date: 2026-06-09T00:00:00.000Z Reasoning: Historical tantalum concentrate grade provided as context for the testing program. - Negative factor: Historical data not verified by QP Evidence · text > tantalite concentrate of up to 57% Ta₂O₅ #### Tags used in scoring **Gravity Route** Polarity: neutral Definition: Gravity separation forms a material part of the flowsheet. Why it applies: processing\_route matches the gravity signal ## 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.