OD6 Metals (ASX:OD6) reports ‘high-grade’ fluorspar results extending mineralisation across the 700m Rocket‑Big Jim‑Spar Corridor at its Quinn Fluorspar Project in Nevada, US.
Six samples returned grades of 97% calcium fluoride (CaF2) or higher, including three samples at 99.9% CaF2, representing the ‘highest grades’ reported to date at Quinn.
The company has confirmed ‘high-grade’ fluorspar across at least four mineralised structures with differing orientations, with the corridor remaining open along strike and at depth.
“These are exceptional fluorspar grades and significantly expand the opportunity we see around Big Jim,” Managing Director Brett Hazelden says.
“Six samples returned 97% CaF2 or better, including three reported at 99.9% CaF2, across a prospective corridor extending approximately 700m from Rocket through Big Jim to Spar.”
The Big Jim main vein returned grades of 99.9%, 99.9%, 99.7%, and 99.5% CaF2 from a shallow‑dipping vein, while the footwall breccia returned 37.4% CaF2.
At Rocket, fluorspar veins hosted in brecciated, silicified outcrop returned 88.8% CaF2, with nearby float samples interpreted to be sourced from Rocket grading 99.9%, 97%, 90.6%, and 74% CaF2.
The newly sampled Spar prospect, located approximately 450m east of Big Jim, returned 94.3%, 94.1%, and 87.1% CaF2 from felsic dyke contacts.
“Importantly, Big Jim is no longer an isolated high-grade occurrence. We have now identified multiple mineralised structures and different styles of fluorspar mineralisation across the corridor,” Hazelden adds.
The results demonstrate multiple mineralisation styles, including shallow‑dipping veins, breccias, and steeply dipping dyke‑contact veins. These differing mineralisation styles have significantly expanded the exploration opportunity at Quinn.
The corridor adds a third style of target to the Quinn Project, complementing the 60m-wide replacement zone at Horseshoe and the 100m-wide breccia and stockwork zone at Mammoth.
OD6 has consolidated 100% ownership of 226 mining claims covering approximately 1,890 hectares across more than 20 fluorspar occurrences. The Quinn Project is located in Nevada, with the US currently importing 100% of the fluorspar it consumes domestically.
OD6 Metals is an Australian critical minerals company advancing a portfolio of fluorspar, rare earths, and copper projects across Australia and the US.
Write to JC Villarba at Mining.com.au
Images: OD6 Metals
