Red Mountain Mining Uncovers 34.3% Antimony at Oaky Creek, NSW
Red Mountain Mining has reported exceptional antimony assay results up to 34.3% from rock chip samples at its Oaky Creek prospect in New South Wales, confirming a large-scale orogenic antimony-gold system. The company plans drilling and further surveys in 2026 to advance exploration.
- High-grade antimony assays up to 34.3% Sb at Oaky Creek North
- 1.6km strike extent of orogenic antimony-gold vein system identified
- Ongoing soil and auger sampling to refine drill targets
- Drilling planned for first half of 2026
- High-resolution airborne magnetic-radiometric survey scheduled
Spectacular Antimony Grades at Oaky Creek
Red Mountain Mining Ltd (ASX, RMX) has unveiled outstanding assay results from its Oaky Creek prospect in the New England Orogen of northeast New South Wales. Rock chip samples have returned antimony grades as high as 34.3%, with several other samples exceeding 19% Sb. These results reinforce the presence of a significant orogenic antimony-gold vein system extending over a 1.6-kilometre strike at Oaky Creek North.
A Large-Scale Mineralised System Emerges
The company’s ongoing exploration has delineated a 3-kilometre-long antimony soil anomaly across Oaky Creek North and South, with rock chip samples confirming high-grade mineralisation along this trend. The geological setting, featuring quartz-carbonate-stibnite veins within folded and faulted Carboniferous metasediments, is analogous to Larvotto Resources’ Hillgrove project, Australia’s largest antimony deposit located about 100 kilometres east.
Advancing Exploration with Soil and Auger Sampling
Red Mountain is actively refining its understanding of the mineral system through detailed soil and auger sampling programs. The December 2025 auger campaign results are expected shortly, with further sampling planned to complete coverage at both Oaky Creek prospects. These efforts aim to define multiple high-priority drill targets, setting the stage for a drilling campaign in the first half of 2026.
Strategic Surveying and Government Support
Complementing ground sampling, the company is preparing a high-resolution airborne magnetic-radiometric survey to better map structural controls and identify additional antimony and gold targets within its extensive Armidale project area. This exploration push aligns with the Australian Government’s prioritisation of antimony as a critical mineral, underscoring the strategic importance of Red Mountain’s projects.
Looking Ahead
With a robust pipeline of assay results, geophysical data, and planned drilling, Red Mountain Mining is positioning itself to unlock the potential of the Armidale Antimony-Gold Project. The company’s methodical approach and promising early results place it among the notable explorers in Australia’s critical minerals sector.
Bottom Line?
Red Mountain’s Oaky Creek results set the stage for a pivotal drilling campaign that could reshape the company’s growth trajectory in 2026.
Questions in the middle?
- Will the upcoming drilling confirm the extent and grade continuity of the antimony-gold system?
- How will the airborne magnetic-radiometric survey influence target prioritisation across the project?
- What are the potential timelines and capital requirements for advancing towards resource definition?
