Galileo Drills Into New PGE and Gold Targets at Norseman
12/2/2025
Galileo Mining (ASX: GAL) has fired up the drill rigs once again at its Norseman project in WA, with a 2,000-metre reverse circulation (RC) drilling campaign now underway. The focus? Chasing fresh platinum group element (PGE) and gold discoveries along one of the more tantalising exploration corridors in the Goldfields.
The campaign zeroes in on shallow mineralisation across three targets: Mission Sill South, Jimberlana South and Callisto North. Fifteen of the planned drill holes are clustered around Mission Sill South, where the lion’s share of activity (around 1,400m) is concentrated. Another two holes will be drilled at Callisto North (~400m), and a single 200m hole is earmarked for Jimberlana South.
According to Galileo MD Brad Underwood, the current campaign is not just about extending known mineralisation — it’s about unlocking the wider potential of the 270-square-kilometre Norseman tenement package. “We believe the potential for new discoveries at Norseman is high and that the ultimate endowment of this new mineral belt could be far greater than our current 1.2Moz PdEq resource,” he said.
That’s a bold statement, but it’s backed by some punchy recent intercepts that have sparked investor interest. These include:
7m @ 3.87 g/t 3E (Pd+Pt+Au) from 28m, including a one-metre interval at 13.74 g/t Au, 3.21 g/t Pd and 0.2 g/t Pt (hole NAC759),
1m @ 3.35 g/t 3E at the end of hole NAC756 (72m), and
1m @ 1.62 g/t 3E from just 17m depth in hole NAC801.
All up, the program is expected to wrap within two weeks, with assay results due approximately six weeks thereafter — putting investors on alert for a January news drop that could shape early 2026 trading.
The drilling is a continuation of Galileo’s regional exploration push following its 2022 discovery of the Callisto deposit — a 17.5Mt polymetallic resource hosting palladium, platinum, gold, rhodium, nickel and copper. The Callisto resource currently stands at 2.3g/t PdEq or 0.52% NiEq, with potential for further scale given the 20km prospective trend to the north and the 12km-long Mission Sill trend to the south.
Callisto has become something of a geological oddity — it’s the first known deposit of its style in Australia, bearing resemblance to the world-class Platreef deposits of South Africa. That uniqueness has cast a long shadow over Galileo’s broader exploration strategy, essentially turning the Norseman ground into a giant, underexplored puzzle with platinum-tinted edges.
The upcoming assays could also be a litmus test for market appetite in 2026. PGEs and gold have had a patchy 2025, but strategic positioning in underexplored terrain — especially with palladium and rhodium in the mix — could reignite investor enthusiasm, particularly if Galileo can notch up more intercepts like those from NAC759.
Meanwhile, the company’s Fraser Range assets — held in JV with the Creasy Group — continue to tick along in the background. But for now, all eyes are on Norseman.
As Underwood put it, “We are testing high priority targets... so close to our existing Callisto deposit.” The company clearly senses it’s drilling on fertile ground.
If Galileo hits the mark again, Norseman could quickly evolve from a discovery story into a district-scale mineral province — and that’s something even the most jaded of goldfields investors will want to watch.