Galileo Mining begins diamond drilling at Callisto discovery

Galileo Mining (ASX: GAL) has commenced diamond core drilling at the exciting Callisto platinum group element (PGE) in discovery in Western Australia.

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The Callisto deposit was discovered in 2022 and is the first deposit of its type identified in Australia, analogous in mineralisation style to the Platreef deposits found in South Africa.

MD, Brad Underwood, said deep diamond core drilling at Callisto resource is an important step in the evolution of the company’s Norseman project.

“Having defined 17.5 million tonnes of near surface mineralisation we are now expanding the search to look for stacked lodes that may have intruded at depth using the same geological structures responsible for the emplacement of Callisto. As well as exploring for new discoveries the current drilling will provide us with mineralised samples for additional metallurgical test work on the existing resource,” he said.

“New one metre split samples from RC drilling at the Mission Sill have been collected and are being processed at the laboratory with results expected in four to six weeks. These assays will assist in determining the location of follow up drilling at the Mission Sill prospect.”

Galileo has defined more than 20km of prospective strike around the Callisto resource, and over 10km of strike at the Mission Sill prospect.

“We are excited to be exploring a large project area with excellent potential for additional discoveries at multiple locations,” Mr Underwood said.

In 2025 Galileo successfully applied for WA state funding to drill beneath the Callisto PGE-nickel-copper deposit at Norseman. Up to $180,000 is available to assist in drilling costs through the exploration incentive scheme (EIS).

 Diamond core drilling will focus directly below the Callisto resource to test for new mineralisation and to increase the understanding of how the deposit was formed.

“In addition to the potential of making a new discovery, the geological information obtained from drilling will contribute to further exploration along strike from Callisto and at other prospects in the Norseman project area,” Mr Underwood said.

The initial EIS diamond hole is planned to drill to 600m depth with further extensions possible as determined by results.

Galileo also intends to undertake new metallurgical test work with the aim of optimising the company’s understanding of metal extraction from the Callisto resource.

GAL is down 4.17% to 23.0¢. Mkt cap $47.42M.

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