RareX Limited has made a significant early discovery of a heavy rare earth element-bearing quartz breccia vein at its Mt Mansbridge Project, confirming the geological potential of the site. The company is advancing exploration across its portfolio, including strategic moves at Khaleesi and Cummins Range, while navigating heritage negotiations at Piper.
- Discovery of 70m heavy rare earth quartz breccia vein at Mt Mansbridge South
- Positive portable XRF readings indicate significant yttrium content
- Pending assay results expected within 4-6 weeks to confirm grades
- New tenement pegged at Khaleesi; low prospectivity tenements relinquished
- Cummins Range re-assaying gallium and preparing updated resource estimate
Early Success at Mt Mansbridge
RareX Limited (ASX – REE) has kicked off exploration at its Mt Mansbridge Project in Western Australia's Kimberley region with a promising discovery – a 70-metre-long quartz breccia vein bearing heavy rare earth elements (HREEs). This vein, located at Mt Mansbridge South, is the first such find in the area in 50 years and was identified through prospecting and portable X-ray fluorescence (pXRF) analysis, which revealed yttrium concentrations exceeding 1%. While these pXRF results are indicative rather than definitive, they strongly support RareX’s geological model and the project's potential to host significant HREE mineralisation.
Assay results from rock chip samples and soil sampling programs are anticipated in the coming weeks, which will provide a clearer picture of the vein’s grade and economic viability. The discovery is particularly timely given the growing global demand for heavy rare earths like dysprosium and terbium, critical components in advanced technologies such as electric vehicles and consumer electronics.
Strategic Portfolio Moves at Khaleesi and Cummins Range
Beyond Mt Mansbridge, RareX is actively consolidating its Khaleesi Project in the East Yilgarn region. The company has pegged a new tenement over a highly prospective magnetic gabbro feature, which has not been previously explored for critical metals beyond vanadium. This move follows the relinquishment of two low prospectivity tenements, reflecting RareX’s focus on high-potential targets. The Khaleesi Project also recently secured a drilling grant covering half the costs up to $180,000, with RareX seeking partners to accelerate exploration.
At the Cummins Range Project, RareX continues to re-assay historical samples for gallium, a valuable critical metal, and is preparing an updated mineral resource estimate that will emphasize high-grade rare earths, gallium, and scandium. Notably, near-mine exploration drilling has been postponed to prioritise heavy rare earth exploration at Mt Mansbridge, underscoring the company’s strategic allocation of resources.
Navigating Challenges at Piper Project
The Piper Project, located along a significant magnetic bulls-eye anomaly near established deposits, remains a key part of RareX’s portfolio. However, progress is currently constrained by ongoing negotiations with the Central Land Council to secure heritage agreements with traditional owners. Despite persistent efforts, RareX has yet to arrange a meeting with the native title holders, a situation not uncommon in the region. The company remains optimistic about resolving these issues, emphasising its commitment to community engagement and responsible exploration practices.
Looking Ahead
RareX’s recent discoveries and strategic project management highlight its growing footprint in Australia’s critical minerals sector. The company’s focus on heavy rare earths, gallium, niobium, and scandium positions it well to meet rising demand driven by the energy transition and technological innovation. Upcoming assay results and planned drilling campaigns will be crucial in validating the Mt Mansbridge discovery and advancing RareX’s broader exploration ambitions.
Bottom Line?
With a fresh heavy rare earth discovery and active portfolio management, RareX is poised for a pivotal year in critical minerals exploration.
Questions in the middle?
- What will the laboratory assay results reveal about the grade and extent of the Mt Mansbridge vein?
- How will RareX balance exploration priorities across Mt Mansbridge, Khaleesi, and Cummins Range projects?
- What impact will ongoing heritage negotiations have on the timeline and scope of Piper Project exploration?