A drill rig on site. Source: Auric Mining
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  • Auric Mining (AWJ) gets metallurgical testwork results from the Jeffreys Find deposit in WA
  • Testwork included two composite samples and aimed to determine various parameters for gold extraction through conventional carbon-in-leach treatment
  • Positively, the results have confirmed the amenability of Jeffreys Find mineralisation to toll treatment and will be used for an upcoming scoping study
  • Technical Director John Utley says this is another “critical step in our progression towards mining at Jeffreys Find”
  • Company shares have been trading 4.65 per cent higher at 9 cents

Auric Mining (AWJ) has received results from metallurgical testwork completed at the Jeffreys Find deposit in Western Australia.

This testwork aimed to determine various metallurgical parameters relevant to gold extraction through a typical toll treatment facility.

Auric Mining prepared two composite samples from drilling completed in September last year.

The first sample represented oxide material and was mainly tested for leach recovery while the second represented transitional to fresh material and was separated into two further composites for comminution and recovery testwork.

Gravity separation and leaching yielded overall gold extraction between 90.16 and 94.99 per cent by the 24-hour mark. The company noted that leach recovery improves to between 92.78 and 96.19 per cent after 48 hours.

Comminution testwork showed the deposit’s mineralisation is relatively soft with a very low bond abrasion index.

Testwork also showed silver content is low which was in line with the company’s expectations for Jeffreys Find and the arsenic content is moderate, particularly in the fresh zone.

Gravite recovery for the fresh composite was reportedly ‘exceptionally high’ at 50.46 per cent with a lower gravity recover of 19.27 per cent for the oxide/transitional composite.

“These results confirm the amenability of Jeffreys Find mineralisation to conventional carbon-in-leach treatment. This is another critical step in our progression towards mining at Jeffreys Find,” Technical Director John Utley said.

The company also undertook preliminary testwork on a sample from the Munda deposit which will be reported separately.

Auric Mining is using the metallurgical results for a scoping study which is expected to be completed in the current quarter.

Company shares were trading 4.65 per cent higher at 9 cents at 1:25 pm AEST.

AWJ by the numbers
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