# RIM: Strong Scandium Recoveries at Murga

Canonical Atlas analysis: https://atlas-staging.minestarters.com/news/rim-strong-scandium-recoveries-at-murga--e7647723-9ce2-4871-9465-3f8e89ff0b61

Original source: https://www.asx.com.au/asx/v2/statistics/displayAnnouncement.do?display=pdf&idsId=03149923

Publisher: asx

Original announcement: 2026-10-07T22:08:00.000Z

Analysis by Minestarters Atlas

Atlas analysis published: 2026-10-07T23:19:25.563Z

Atlas analysis updated: 2026-10-07T23:19:25.563Z

- Company: Rimfire Pacific Mining Limited

- Ticker: RIM

- Exchange: ASX

- Region: New South Wales, Australia

- Primary commodity: Scandium

- Secondary commodities: None reported

- Document categories: Metallurgy

- Extracted: 2026-10-07 23:19:26 UTC

Narrative sentiment: 0.60 · Bullish

## Minestarters Atlas summary

Rimfire Pacific Mining has reported positive 15-week scandium recovery trends from Stage 2 bottle roll leaching tests at the Murga project. Projections indicate long-term recoveries could reach 60% for saprolite and 30% for laterite, supporting a lower-capital atmospheric leaching processing route.

Reasoning: The announcement reports encouraging long-term recovery trends from Stage 2 bottle roll tests, supporting a lower-CAPEX atmospheric leaching pathway for the Murga project.

- Positive factor: Strong trend projections for long-term recoveries \(60% saprolite, 30% laterite\)

- Positive factor: Low acid consumption \(0.34t/t saprolite, 0.23t/t laterite\) supports lower-capital atmospheric leaching

- Positive factor: High Scandium:Iron ratio \(2.24 mg/g\) suggests easier downstream separation

- Positive factor: Supports a potentially simpler, lower-capital processing route compared to HPAL

- Negative factor: Current 15-week recoveries are relatively low \(22.7% saprolite, 15.2% laterite\)

- Negative factor: Laterite recoveries are lower than saprolite, potentially due to acid-consuming species \(Ca, Mn, Mg\)

Facts used in scoring: 2

## Classification and evidence

**Mill Route**

Polarity: neutral

Definition: Processing via mill or concentrator \(CIL, CIP, tank leach, flotation\).

Why it applies: The study evaluates atmospheric leaching \(tank/bottle roll\) which is a mill-based hydrometallurgical route.

Evidence · text

> atmospheric leaching technologies

**Heap Leach Route**

Polarity: neutral

Definition: Processing via heap leach — lower CAPEX and OPEX, lower recovery expected.

Why it applies: the document describes a heap\_leach route \("heap leach"\)

**Multi-Domain Tested**

Polarity: positive

Definition: Variability across ore domains \(oxide, transition, fresh\) has been addressed.

Why it applies: 2 distinct composites were tested

## Extracted facts

Stored fact records: 2. Some facts used in scoring do not have a stored record.

## Metallurgical Results (2)

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/rim-strong-scandium-recoveries-at-murga--e7647723-9ce2-4871-9465-3f8e89ff0b61#fact-metallurgical-facts-0)

Murga Scandium Deposit · scandium

#### Identity

- Project: Murga Scandium Deposit
- Commodity: scandium
- Region: australia\_nsw
- Reported Region: New South Wales, Australia
- Ticker: RIM

#### Test Work

- Program Status: preliminary
- Test Type: bottle roll
- Processing Route: atmospheric leaching
- Sample: 0.74 kg sample of saprolite-hosted low iron scandium mineralised material \(composite HQ quarter core from FI2679\)

#### Recovery

- Recovery: 22.7 %
- Recovery Basis: actual\_test

#### Reagents

- Acid: 340 kg/t

#### Lab

- Laboratory: Simulus Pty Ltd
- Consultant: Mr. Boyd Willis

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-10-07T00:00:00.000Z

Reasoning: 15-week recovery of 22.7% is a mid-point in a continuing test, but low acid consumption and high Sc:Fe ratio are positive indicators for atmospheric leaching.

- Positive factor: Low acid consumption

- Positive factor: High Sc:Fe ratio

Evidence · text

> scandium recoveries of 22.7% \(saprolite sample\) and 15.2% \(laterite sample\) had been achieved

### bottle roll

[Link to this fact](https://atlas-staging.minestarters.com/news/rim-strong-scandium-recoveries-at-murga--e7647723-9ce2-4871-9465-3f8e89ff0b61#fact-metallurgical-facts-1)

Murga Scandium Deposit · scandium

#### Identity

- Project: Murga Scandium Deposit
- Commodity: scandium
- Region: australia\_nsw
- Reported Region: New South Wales, Australia
- Ticker: RIM

#### Test Work

- Program Status: preliminary
- Test Type: bottle roll
- Processing Route: atmospheric leaching
- Sample: 1kg sample of laterite-hosted low iron scandium mineralised material \(composite HQ quarter core from FI2679\)

#### Recovery

- Recovery: 15.2 %
- Recovery Basis: actual\_test

#### Reagents

- Acid: 230 kg/t

#### Lab

- Laboratory: Simulus Pty Ltd
- Consultant: Mr. Boyd Willis

#### Review

- Needs Review: No
- Historical: No

#### Dates

- Event date: 2026-10-07T00:00:00.000Z

Reasoning: Recovery is lower than saprolite, likely due to acid-consuming minerals, but acid consumption remains low.

- Positive factor: Low acid consumption

- Negative factor: Lower recovery compared to saprolite

Evidence · text

> scandium recoveries of 22.7% \(saprolite sample\) and 15.2% \(laterite sample\) had been achieved

## 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.