Nickel concentrate produced during testwork. Source: Auroch Minerals
Market Herald logo

Subscribe

Be the first with the news that moves the market
  • Auroch Minerals (AOU) sees “saleable” nickel concentrate grades following preliminary metallurgical testwork on shallow high-grade nickel sulphide mineralisation samples from its Nepean project in WA
  • Of the three composite drill-core samples tested, Auroch says all responded well to conventional froth flotation, with recoveries for nickel of between 85 and 97 per cent
  • The company says saleable concentrate grades came in at in excess of 13 per cent nickel for all samples
  • Auroch says the testwork results justify continuing the scoping study on a possible open-pit mining operation at Nepean
  • AOU shares down four per cent to 12 cents

Auroch Minerals (AOU) has seen “saleable” nickel concentrate grades following preliminary metallurgical testwork on nickel sulphide mineralisation drill core samples from its 80 per cent-owned Nepean project in Western Australia.

The company said the testwork was undertaken on shallow high-grade nickel sulphide mineralisation identified directly south of the historic Nepean nickel mine.

Of the three composite drill-core samples tested, Auroch said all responded well to conventional froth flotation, with recoveries for nickel of between 85 and 97 per cent.

Saleable concentrate grades came in at in excess of 13 per cent nickel for all samples, according to Auroch.

One sample had a lower recovery and is the subject of ongoing optimisation testing.

“We have very shallow, high-grade nickel sulphide mineralisation at Nepean that may potentially be extracted in an open-pit mining scenario, but because of the oxidation of the mineralisation being so close to surface, we were unsure if we would be able to produce a saleable grade nickel sulphide concentrate,” Managing Director Aidan Platel said.

“The results are extremely encouraging and show that this shallow nickel sulphide mineralisation will indeed produce a saleable grade nickel concentrate, and furthermore that the nickel recoveries are more than acceptable.”

Auroch said the testwork results justified continuing the scoping study on a possible development of the Nepean project.

The company has set its sights on completing a JORC-compliant mineral resource estimate for the shallow portion of the known nickel sulphide mineralisation at Nepean.

AOU shares were down four per cent to 12 cents at 12:12 pm AEST.

AOU by the numbers
More From The Market Herald
Countplus (ASX:CUP) - Incoming CEO, Hugh Humphrey

" Hugh Humphrey appointed CEO of Countplus (ASX:CUP)

Investment services company CountPlus (ASX:CUP) has appointed Hugh Humphrey as the company's CEO, effective July 1.

" ASX employee tests positive for Covid-19

The ASX says an employee has contracted Covid-19.

" ASIC launches official investigation into ASX market outage

The ASX has confirmed today it is officially under investigation from the Australian Securities and Investments…

" ASX sheds more light on last week’s market tech failure

The Australian Securities Exchange has shed some more light on the nature of last week's market…