Resources Top 5: Mount Ridley and Accent Resources light up on metallurgical breakthroughs

Original announcement by stockhead on

Company
Mount Ridley Mines
Ticker
MRD
Exchange
Unavailable
Region
Western Australia
Primary commodity
Rare earths
Secondary commodities
Scandium, Gallium
Document categories
Metallurgy, Drill results, Resource update
Extracted
2026-08-20 17:53:11 UTC

Analysis by Minestarters Atlas

Minestarters Atlas analysis

Summary

Mount Ridley Mines reported a metallurgical breakthrough at its Grass Patch Complex in WA using its proprietary Selectro process. The process achieved high recoveries for heavy rare earths, scandium, and gallium, significantly outperforming standard hydrochloric acid leaching.

Reasoning: The company reported a metallurgical breakthrough using a proprietary process that significantly outperforms standard leaching methods for multiple critical minerals.

Positive factors

  • Proprietary Selectro process doubling industry standard recovery
  • High recovery of high-value heavy rare earths (dysprosium, terbium)
  • Significant scandium and gallium recovery improvements

Facts used in scoring: 13

Atlas analysis — Mount Ridley Mines: Resources Top 5: Mount Ridley and Accent Resources light up on metallurgical breakthroughs. 80% recovery; 73.5% recovery; 80% recovery

Classification and evidence

High Recoverypositive

Recovery at or above the exceptional band for the commodity and processing route.

Why it applies: Scandium recovery of 80% is exceptional for the context.

Evidence · text

“Scandium recovery hit 80%”

Bonanza Interceptpositive

Exceptionally high-grade zone, well above the deposit-type norm.

Why it applies: 4m at 20g/t Au is an exceptionally high grade interval.

Evidence · text

“richer 4m interval grading 20g/t Au”

Extracted facts

Stored fact records: 13. Some facts used in scoring do not have a stored record.

Metallurgical Results (13)

Fact 1rare_earthsRecovery: 80 %View all details
Link to this fact

Identity

Commodity
rare_earths
Ticker
MRD

Test Work

Sample
material sourced from Grass Patch

Recovery

Recovery
80 %
Recovery Basis
actual_test

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: High recovery range reported for heavy rare earths using proprietary process.

Positive factors

  • Recovery between 77% and 83%

Evidence · text

“notched up between 77% and 83% recovery of heavy rare earths”
Fact 2rare_earthsRecovery: 73.5 %View all details
Link to this fact

Identity

Commodity
rare_earths
Ticker
MRD

Test Work

Sample
material sourced from Grass Patch

Recovery

Recovery
73.5 %
Recovery Basis
actual_test

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: Solid recovery reported for light rare earths.

Positive factors

  • Recovery between 70% and 77%

Evidence · text

“70% to 77% recovery of light rare earths”
Fact 3dysprosiumRecovery: 80 %View all details
Link to this fact

Identity

Commodity
dysprosium
Ticker
MRD

Test Work

Sample
material sourced from Grass Patch

Recovery

Recovery
80 %
Recovery Basis
actual_test

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: High recovery of a high-value heavy rare earth.

Positive factors

  • Average recovery >80%

Evidence · text

“+80% average recovery of dysprosium”
Fact 4terbiumRecovery: 80 %View all details
Link to this fact

Identity

Commodity
terbium
Ticker
MRD

Test Work

Sample
material sourced from Grass Patch

Recovery

Recovery
80 %
Recovery Basis
actual_test

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: High recovery of a high-value heavy rare earth.

Positive factors

  • Average recovery >80%

Evidence · text

“+80% average recovery of ... terbium”
Fact 5scandiumRecovery: 80 %View all details
Link to this fact

Identity

Commodity
scandium
Ticker
MRD

Test Work

Sample
material sourced from Grass Patch

Recovery

Recovery
80 %
Recovery Basis
actual_test

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: Significant improvement over comparative leaching method.

Positive factors

  • 80% recovery vs 25% for HCl leaching

Evidence · text

“Scandium recovery hit 80%, well above the 25% achieved through comparative hydrochloric acid leaching”
Fact 6galliumRecovery: 56 %View all details
Link to this fact

Identity

Commodity
gallium
Ticker
MRD

Test Work

Sample
material sourced from Grass Patch

Recovery

Recovery
56 %
Recovery Basis
actual_test

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: Successful recovery of gallium where standard method failed.

Positive factors

  • Recovered 56% vs 0% for HCl leaching

Evidence · text

“Selectro also recovered 56% of the gallium, comparing favourably with the baseline hydrochloric acid leaching method which didn’t recover any”
Fact 7scandiumView all details
Link to this fact

Identity

Commodity
scandium
Ticker
MRD

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: Large scandium resource mentioned as part of project context.

Positive factors

  • Large scale resource

Evidence · text

“Grass Patch hosts one of the world’s largest scandium resources, totalling 367.98Mt at 57.3 parts per million Sc2O3”
Fact 8galliumView all details
Link to this fact

Identity

Commodity
gallium
Ticker
MRD

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: Gallium resource mentioned as part of project context.

Evidence · text

“contains a gallium resource of 838.7Mt at 29.3ppm Ga”
Fact 9rare_earthsView all details
Link to this fact

Identity

Commodity
rare_earths
Ticker
MRD

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: Rare earths resource mentioned as part of project context.

Evidence · text

“rare earths resource totalling 122.5Mt at 889ppm TREO”
Fact 10goldView all details
Link to this fact

Identity

Commodity
gold
Ticker
MRD

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: Significant gold intercept reported at New Waverley.

Positive factors

  • High grade intercept

Evidence · text

“standout 16m hit at 5.3g/t Au from 44m”
Fact 11goldView all details
Link to this fact

Identity

Commodity
gold
Ticker
MRD

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: Very high grade sub-interval within the 16m intercept.

Positive factors

  • Bonanza grade

Evidence · text

“featuring a richer 4m interval grading 20g/t Au from 52m”
Fact 12iron_oreRecovery: 97 %View all details
Link to this fact

Identity

Commodity
iron_ore
Ticker
MRD

Test Work

Sample
dry magnetic separation

Recovery

Recovery
97 %
Recovery Basis
actual_test

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: Strong recovery reported for dry magnetic separation.

Positive factors

  • High magnetic iron recoveries >97%

Evidence · text

“maintaining magnetic iron recoveries above 97%”
Fact 13iron_oreRecovery: 99 %View all details
Link to this fact

Identity

Commodity
iron_ore
Ticker
MRD

Test Work

Sample
further crushing and dry re-beneficiation

Recovery

Recovery
99 %
Recovery Basis
actual_test

Review

Needs Review
No
Historical
No

Dates

Event date
2026-08-12T00:00:00.000Z

Reasoning: Excellent recovery reported after further processing.

Positive factors

  • Recoveries above 99%

Evidence · text

“maintaining recoveries above 99%”

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.