100% RMX
Silver Dollar Project
Located southeast of Yellow Pine in a highly prospective antimony–gold district. Recent acquisition of 24 new claims increased RMX’s landholding by >80%. Historic mining recorded high-grade antimony (avg. 17.7% Sb) and silver. Geological setting is analogous to the large Stibnite project, supporting strong critical minerals potential.
100% RMX
Silver Dollar Project.
Red Mountain Mining (ASX: $RMX) has expanded its North American footprint with the acquisition of the highly prospective Silver Dollar Antimony Project in central Idaho, USA, increasing its Idaho holdings by over 80%.
Highlights
- Acquisition of the historical Silver Dollar Mine with documented antimony and gold mineralisation.
- Historical production from the 1940s reported average ore grades of 17.7% Sb and a USGS stockpile sample recorded 14.6% Sb and 6.3ppm Ag.
- Located southeast of RMX’s Yellow Pine Antimony Project, featuring multiple antimony and gold occurrences.
- Historical shaft sunk in 1944 reached 10m into fractured granodiorite, targeting a massive stibnite vein up to 1m thick.
- Geological setting part of the Cretaceous Idaho Batholith, analogous to Perpetua Resources’ Stibnite Gold-Antimony Project.
- Project increases RMX’s scale in central Idaho and strengthens its North American Antimony-Gold portfolio.
- Acquired and secured by RMX’s US-based technical team, supporting the company’s strategy of in-house project advancement.
- Well-funded following recent capital raising to execute exploration and evaluate new opportunities.
Geology, Strategic Potential and Exploration Plan
The Silver Dollar Project hosts stibnite vein mineralisation associated with an ENE-striking, steeply north-dipping fault within granodiorite of the Cretaceous Idaho Batholith, with historical records showing veins up to 1 meter wide and specimens weighing up to 20kg. The project strengthens RMX’s North American presence in critical metals and gold, providing significant untested potential for antimony, gold, silver, uranium, and possibly mercury. RMX’s in-house technical team will leverage historical data to prioritise high-value targets, with planned exploration programs designed to rapidly assess mineralisation and advance the project efficiently, delivering long-term value for shareholders.