Galileo expands Norseman targets with new PGM outcrop and gold prospect

North Callisto adds a surface expression to Galileo’s PGM search

Galileo Mining Ltd (ASX:GAL) has added another drill target to its Norseman portfolio after identifying mineralised fresh rock at surface about two kilometres north of the 17.5 million-tonne Callisto Resource. Rock-chip samples returned up to 1.87g/t PGM 3E, a combined measure of palladium, platinum and gold.

The discovery is notable because Callisto was identified approximately 100 metres beneath cover, while the North Callisto outcrop gives Galileo direct exposure to mineralised rock. The outcrop spans about 40 metres of strike, with earlier drilling roughly 140 metres to the north returning 62 metres at 0.22g/t PGM 3E and drilling about 170 metres south including 100 metres at 0.19g/t.

Galileo had already flagged the target in its North Callisto rock-chip results, which identified the 1.87g/t 3E rock-chip result and planned aircore testing. A 5,000-metre aircore campaign began in early October across North Callisto and other prospective zones, including up to eight kilometres of largely untested strike north of the existing resource.

Mission Sill moves from shallow anomalism to deeper drilling

Assays from approximately 4,500 metres of June aircore drilling returned anomalous PGM mineralisation on all seven drill lines at Mission Sill. The results have narrowed the focus to Zone A, extending about 1.4 kilometres, and Zone B, extending about two kilometres.

Selected intersections included 36 metres at 0.31g/t PGM 3E, including four metres at 0.50g/t; 20 metres at 0.30g/t, including four metres at 0.56g/t; and 16 metres at 0.30g/t, including one metre at 0.54g/t. These are exploration results rather than a resource estimate, and the reported grades and widths do not establish economic viability.

The company’s Mission Sill target zones had previously emerged from aircore work as two extensive PGM trends alongside a new gold prospect at Callisto South. Galileo has now signed an RC drilling contract for Mission Sill, with November drilling designed to test the zones down-dip and along strike. Earlier RC drilling had intersected sulphides beneath aircore anomalies in both zones, according to the report.

Callisto South brings gold into the exploration mix

At Callisto South, first-pass reconnaissance aircore drilling identified a new gold prospect in an area without previous drilling. Hole NAC916 returned four metres at 1.2g/t gold from surface at the contact between an ultramafic unit and quartz-diorite.

The intersection came from weathered regolith and was accompanied by low levels of silver and sulphur. Galileo said the mapped geological contact extends for more than 1.5 kilometres, with detailed mapping and sampling planned before any further drilling.

Cash supports several near-term tests

Galileo reported approximately A$6.9 million in cash at 30 September and exploration and evaluation expenditure of $582,000 during the quarter. The company said it remained focused on capital discipline while advancing multiple targets. Norseman is wholly owned, while the Fraser Range project is held through joint ventures with the Creasy Group; work there during the quarter was limited to reviewing and interpreting existing data.

The next results will determine whether the expanding target list represents more than a collection of encouraging surface and shallow-drilling signals. North Callisto aircore assays, November RC drilling at Mission Sill and follow-up work at Callisto South should provide the first clearer tests of continuity, depth and geological significance.