Halloysite kaolin testing from Poochera site showing high purity levels

ALLOTMENTS: Andromeda Metal's Kaolin-Halloysite Project allotments near Streaky Bay and Poochera, which includes Carey's Well. Picture: Andromeda Metals
ALLOTMENTS: Andromeda Metal's Kaolin-Halloysite Project allotments near Streaky Bay and Poochera, which includes Carey's Well. Picture: Andromeda Metals

Andromeda Metals have announced positive results from the second round of high purity alumina (HPA) testing on halloysite kaolin at Poochera.

The HPA testing on a sample of the Carey’s Well halloysite kaolin from the Poochera project saw a 99.994 per cent purity level in the site’s material.

This was a follow-up on preliminary metallurgical testwork that achieved a purity of 99.985 per cent from a non-optimised sample.

Andromeda said while the metallurgical process had not yet been fully optimised and required further testing to determine the best possible outcome, the latest test confirmed the resource as a world class feed material for HPA manufacture which had the potential to cut production time and costs.

“This is extremely positive for our short-term, medium and long-term goals,” Andromeda managing director James Marsh said.

“It is very interesting and shows serious growth implications technology-wise, which puts us ahead of the pack.

“We want to get to 99.999 per cent purity and the indication is we can.”

In addition to the HPA testing, Andromeda is continuing to advance the Poochera site with preparations for bulk sampling ongoing.

“In the short term we will ship our raw ore, we have customers waiting,” Mr Marsh said.

“We are hoping to get our bulk-sampling program done in October.

“We will extract about 200 tonnes of ore for commercial testing in Western Australia and China, then process that.”

Andromeda said the next step would involve further refinement of the extraction process and process flow sheet development for HPA production.

They are also planning more extensive testing to characterise the halloysite fully in order to determine the optimum processing required for semi and full refined products, which would also allow for halloysite development opportunities to be better assessed.

Mr Marsh said the material was in high demand and that the Poochera deposit was extensive.