OD6 Metals (ASX:OD6) reports continuous and high-grade fluorspar results at Quinn Project

OD6 Metals has reported initial channel sampling results from the Mammoth Prospect within its Quinn Fluorspar Project in Nevada, with assays reporting continuous and high-grade fluorspar mineralisation across an exposed outcrop.

The results form part of preliminary due diligence following the company’s option agreement announced on 4 March 2026.

Highlights

• Channel sampling returned 12m @ 40.8% CaF₂, including 1m @ 54.0% CaF₂
• Grades ranged from 26.4% to 54.0% CaF₂ across the full 12m exposure
• Sampling demonstrates persistent high-grade fluorspar continuity across the exposed outcrop
• Results validate historic high-grade sample results and demonstrate consistency within the system
• Mineralisation mapped over a 9,000m² breccia area, with only a fraction tested
• Geological indicators suggest the surface expression is representative of a system extending at depth and along strike

Channel sampling was undertaken at 1m intervals across a continuous 12m exposure of fluorspar matrix breccia at the Mammoth Prospect, using a technique designed to obtain representative, continuous samples across exposed mineralisation and provide a more reliable indication of grade continuity than selective rock chip sampling.

The channel returned an average grade of 40.8% CaF₂, with individual sample results ranging from 26.4% to 54.0% CaF₂ across the full interval.

The mineralisation is hosted within a breccia and replacement style system in limestone, mapped up to 60m in width and extending across a 9,000m² area at Mammoth, as outlined in the release.

OD6 Managing Director Brett Hazelden said the results demonstrate both grade and continuity at the prospect, noting,

“These channel sampling results provide a critical step forward in validating the Mammoth Prospect, demonstrating not only very high grades but importantly strong continuity across the exposed mineralisation. An average grade of over 40% CaF₂ across 12 metres of outcropping breccia fluorspar places this system as one the higher-grade fluorspar deposits globally.”

The Quinn Fluorspar Project is located approximately 220km north of Las Vegas, Nevada, and includes multiple mapped fluorspar occurrences, including the Mammoth and Horseshoe prospects.

Historic rock chip results in the broader project area are reported up to 94% CaF₂.

Fluorspar at the project occurs within Paleozoic limestones and dolomites altered by epithermal activity, with mineralisation present as replacement and breccia deposits as well as veins.

The United States currently imports 100% of its fluorspar consumption, and the material is listed as a critical mineral with applications including semiconductor processing, advanced battery technologies, nuclear fuel processing, and aerospace and defence technologies.

As part of its due diligence program, OD6 Metals has outlined further work including expanded channel and rock chip sampling, validation of historic results, detailed geological and structural mapping, soil geochemistry programs, drill target identification, permitting for maiden drilling, and metallurgical testwork planning.

The current results are derived from surface sampling across a limited portion of the mapped mineralised area, with additional work planned across the project.

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