Locksley Resources Limited (ASX: LKY) has announced results of a holistic review of mineral potential outside of the known high-grade REE mineralization within the Mojave Project, California. The holistic review identified six rock chip samples grading >0.5% Sb, including two samples grading 11.2% Sb and 8.3% Sb.
The samples had been collected from the historic Desert Antimony Mine, located on the North blocks, during reconnaissance sampling for REEs. In addition, four samples returned copper >0.5%, including one sample assaying 4.12% Cu to the south-east of the Desert Antimony Mine.
Over the last 12 months, Locksley Resources have completed three surface sampling programmes at the Mojave Project, CA, located 45 minutes from Las Vegas. A total of 223 rock chip samples and 43 stream sediment samples have been collected throughout the Mojave Project’s El Campo Lease, North Block, North-East Block, and South Block. Given the proximity of the Mountain Pass REE Mine rare-earth elements (REE) have been the main focus of exploration during these programmes.
As part of a holistic multi commodity review, the company has revealed significant antimony and copper mineralization at the Mojave Project. The high-grade antimony is represented by historic underground mine workings on quartz-stibnite (Sb2S3) veins, whilst the copper anomalism has a gold-silver-bismuth association suggesting of a felsic intrusive related source.
Antimony is listed as a critical mineral by the US Department of Interior as it is used in a wide variety of military, energy, industrial, and consumer applications. The US has no domestic primary mined source of antimony and China has announced it will cut off the global supply of antimony from 15 September 2024.
Additionally, a sample to the south-east of the Desert Antimony Mine assayed at 4.12% Cu.
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