Callisto Mineral Resource Estimate

Galileo Mining engaged Cube Consulting (Cube) to complete a maiden Mineral Resource Estimate (MRE) for the Callisto deposit which underpins Galileo’s wholly owned Norseman Project located 15 km northwest of the town of Norseman in Western Australia.

The data used to produce the MRE was collected by Galileo via drilling throughout 2022 and 2023 following the completion of the discovery hole in May 2022. Cube undertook the estimation work between August and September 2023. The MRE was released to the market in the ASX announcement dated 2^nd October 2023. 

Highlights of the Maiden Mineral Resource include: 

• The Callisto discovery is the first deposit of its type identified in Australia and is analogous in mineralisation style to the Platreef deposits found in South Africa.
• Maiden Indicated and Inferred Mineral Resource Estimate calculated for the Callisto Pd–Pt–Au–Rh–Ni–Cu sulphide deposit;
  • 17.5 Mt @ 1.04g/t 4E, 0.20% Ni, 0.16% Cu (2.3g/t PdEq or 0.52% NiEq)
  • 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 optimisation and remains open at depth with potential for additional resource delineation
• Consistent and continuous sulphide mineralisation within a single modelled geological domain
• Simple metallurgy with excellent recoveries demonstrated through industry standard sulphide flotation 
• Callisto discovery marks a new mineral province where Galileo controls all the prospective ground within a 255 km2 project area