Australian Critical Minerals eyeing REE potential at Beverley

Australian Critical Minerals (ASX:ACM) is considering potentially drilling beyond the kaolin zones at its Beverley Project in Western Australia to test rare earth element (REE) mineralisation. 

Australian Critical Minerals, which has a $2.69 million market capitalisation, says the consideration of the REE potential follows the assessment of previous results, including an interval measuring 1m @ 2,119 parts per million (ppm) total rare earth oxides (TREO).

The results, according to the company, provide supporting criteria for testing the zones below the kaolin horizons for occurrences of rare earth oxides.

It was found that there may be a zone beneath the near-surface kaolin material which could host REE concentrations. The company notes that only the kaolin-rich intervals were previously reported, since kaolin was the product of commercial interest at the time.

Meanwhile, the Australia Nuclear Science and Technology Organisation (ANSTO) has completed preliminary leachability testing of selected reverse circulation drilling samples gathered from the Rankin Dome Project. 

Australian Critical Minerals is currently earning a 51% interest from Kula Gold (ASX:KGD) at Rankin Dome. 

The results from ANSTO’s testing show that between 21% and 23% of TREOs came from magnet rare earths — including praseodymium, neodymium, dysprosium, and terbium — with head grades between 1,148ppm and 1,674ppm TREO.

Two leach tests were undertaken on each of the samples, including a desorption test and an acid leach test. 

In light of the results from Rankin Dome, the company plans to investigate whether rare earth mineralogy can vary with depth in the weathering profile or between areas within the TREO anomaly outlined to date. 

Australian Critical Minerals believes there is also scope to enhance rare earth recoveries using some method of beneficiation and concentration before applying more aggressive pH leach conditions. 

Australian Critical Minerals is an exploration company focused on developing a quality portfolio of critical minerals projects in Western Australia. 

The key projects are the Cooletha (Pilbara) Lithium Project and the Rankin Dome (Southern Cross) Rare Earth Project.

Write to Adam Drought at Mining.com.au

Images: Shutterstock
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Written By Adam Drought
Born and raised in the UK, Adam is a sports fanatic with an interest in Rugby League and UFC/MMA. When not training in Muay Thai and Brazilian Jiu Jitsu, Adam attends Griffith University where he is completing his final year of a Communication & Journalism degree.