Galileo Mining has reported standout assay results from its April 2025 aircore drilling campaign at the Mission Sill prospect within its 100 per cent-owned Norseman Project in Western Australia, highlighting the region’s growing significance for platinum group elements (PGEs) exploration.
The company’s latest results include a peak palladium assay of 4.1 grams per tonne (g/t) and a platinum assay of 2.5 g/t over one metre from 29 metres depth in drill hole NAC617.
Additional one-metre sampling returned further high-value intersections, such as 4 metres at 1.12 g/t 3E (platinum, palladium, gold) from 26 metres in NAC516 — including 1 metre at 2.27 g/t 3E from 28 metres — and 6 metres at 0.73 g/t 3E from 1 metre in NAC588, including 1 metre at 1.03 g/t 3E from 2 metres.
These results build on the Norseman Project’s established prospectivity, following Galileo’s 2022 discovery of the Callisto resource, which stands at 17.5 million tonnes at 1.04 g/t 4E, 0.20% nickel, and 0.16 per cent copper.
The Callisto deposit is notable as Australia’s first Platreef-style PGE discovery, a class of deposit known for its scale and favourable mining characteristics.
Managing Director Brad Underwood commented: “Our Norseman Project continues to deliver significant results with maximum palladium grades over 4 g/t and platinum over 2 g/t from aircore drilling.
“These assays show the potential for new resources to be discovered in the area after the prospectivity of the project was proven with the 2022 discovery of the Callisto resource.
Underwood noted that Galileo stands among a select group of Australian companies with PGE resources and emphasised the strong potential for further discoveries at the Norseman project.
He explained that the company is preparing new aircore and RC drilling campaigns aimed at uncovering additional palladium and platinum mineralisation.
Underwood also highlighted Galileo’s robust financial position and support, stating that the company is committed to advancing resource discoveries across its extensive tenement holdings in Western Australia’s established mining regions.
He expressed enthusiasm for the promising nature of Galileo’s projects and anticipation for the upcoming exploration activities.
The company has announced that follow-up drill programs are being planned to focus on key target areas identified from recent drilling within the 12-kilometre-long Mission Sill trend.
Notably, the NAC617 target zone, which delivered the exceptional 4.1 g/t palladium assay, is located at the end of an aircore drill line and remains open to the east, representing a prime target for further exploration.
Meanwhile, drilling at Galileo’s Fraser Range project has been delayed due to weather and challenging drilling conditions, with assay results now expected in late July.
Galileo’s ongoing exploration success at Norseman positions the company as a key player in Australia’s emerging PGE sector, with the potential for further discoveries as drilling continues across its extensive landholding.















