Galileo Mining Ltd (ASX: GAL) has announced a maiden MRE for the Callisto deposit within the Company’s 100% owned Norseman project in Western Australia. The Callisto discovery is the first deposit of its type identified in Australia and is analogous in mineralization style to the Platreef deposits found in South Africa.
Galileo’s managing director Brad Underwood commented: “Galileo’s discovery of the Callisto deposit has been a breakthrough in understanding the geology and prospectivity at our Norseman project. We have now defined a significant resource from a total of 147 drill holes (38,695m) within an established mining district of Western Australia. The discovery occurs on a granted mining Lease just 15km from the town of Norseman and with extensive nearby infrastructure including gas pipeline, water pipeline, railway, and sealed highway.
The announcement includes the first discovery of “Platreef” style PGE-gold-nickel-copper deposit in Australia. The maiden indicated and inferred MRE calculated for the Callisto Pd–Pt–Au–Rh–Ni–Cu sulphide deposit;
- 17.5Mt @ 1.04g/t 4E1, 0.20% Ni, 0.16% Cu (2.3g/t PdEq2 or 0.52% NiEq3)
- Contained metal includes 585,000oz 4E, 35Kt Ni, and 28Kt Cu (~1.27Moz PdEq or ~91,000t NiEq)
- ~8Mt (46%) of the resource is inside the indicated category with a 2.5g/t PdEq grade or 0.58% NiEq (metal content within indicated resource category of ~639,000oz PdEq or ~45,800t NiEq)
- 95% of resource is constrained by pit optimization and remains open at depth with potential for additional resource delineation
The company has noted consistent and continuous sulphide mineralization within a single modelled geological domain, simple metallurgy with excellent recoveries has also been demonstrated through industry standard sulphide flotation. The Callisto discovery marks a new mineral province where Galileo controls all the prospective ground within a 255km2 project area. The company’s current focus is on making new discoveries within the 5km of prospective ground north of Callisto and the 4km of prospective ground to the south. Assay results pending from the most recent drill programme with the next round of exploration drilling planned to commence in late October 2023.
“The nature of the mineralization at Callisto is analogous to the Platreef deposits in South Africa where several deposits occur over a strike length of 10km. Applying this knowledge, we will broaden our search for more discoveries starting with the prospective areas at our North and South Callisto prospects.”
“Ultimately, we believe this search space will encompass the full 20km of the prospective host rocks at the Callisto trend and the further 12km of prospective strike length at the Mission Sill prospect where similar geology has been intersected in drilling. We believe the potential for new discoveries within our project area is high and will be undertaking extensive drill campaigns aimed at generating new discoveries. The next drill programme will test targets at both South and North Callisto prospects and is scheduled to commence in late October. We very much look forward to getting these drill campaigns underway in this exciting new mineral province.”
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