Pure Resources Confirms Heavy Rare Earth Recovery from Garnet Hills Garnet
Pure Resources has achieved a key early milestone with Oak Ridge National Laboratory confirming the recovery of heavy rare earth elements from garnet concentrate at its Garnet Hills Project. While still at proof-of-concept stage, this validates the potential for a new source of critical minerals.
- Heavy rare earth elements recovered in lab testwork
- Recovery method protected as confidential IP with patent plans
- Results qualitative; no grades or recovery percentages yet
- Expanded testwork to quantify and optimise recovery underway
- Supports strategic rare earth supply chain security for magnets and defence
Early Validation of Heavy Rare Earth Recovery
Pure Resources Limited (ASX:PR1) has taken a significant early step in its quest to unlock rare earth elements from garnet at its Garnet Hills Project in Western Australia. Laboratory testwork conducted by the US Department of Energy’s Oak Ridge National Laboratory (ORNL) has successfully recovered rare earth elements (REE), including the highly sought-after heavy rare earth elements (HREE), into solution from garnet concentrate.
This early proof-of-concept result confirms that the Garnet Hills garnet contains recoverable heavy rare earths, which are critical to permanent magnets, defence systems, and clean energy technologies. While the results remain qualitative and no quantitative grades or recovery percentages have been reported, the confirmation of HREE presence underpins the rationale for Pure Resources’ strategic partnership with ORNL.
Confidential Recovery Process and Intellectual Property Strategy
The recovery method applied by ORNL is proprietary and subject to confidentiality ahead of a prospective patent filing. Pure Resources is advancing the intellectual property position around this technology, aiming to commercialise through licensing pathways. Details of the processing conditions and analytical data remain undisclosed to protect commercial value.
CEO Rocco Tassone described the outcome as “very encouraging,” emphasising the importance of validating heavy rare earth recovery and the value of collaborating with a leading research institution. The company is now focused on the next phase of testwork to quantify and optimise recovery rates.
Sampling and Testwork Scope
The garnet sample tested by ORNL was derived from a ~2,800 kg composite of garnetiferous material collected across 197 surface sites on a 20 m grid within Mining Lease M80/416. This composite was processed at Nagrom Laboratories to produce andradite-rich garnet concentrates, which were then supplied to ORNL for rare earth extraction testing.
The testwork confirms rare earth elements spanning both light and heavy groups were taken into solution, validating the technical premise that these critical minerals are hosted within the garnet lattice. However, the company cautions that these are early-stage laboratory results, with no assurance yet on economic viability or scalability.
Next Steps and Strategic Importance
Pure Resources plans an expanded laboratory program with ORNL to quantify recovery percentages and optimise extraction conditions. Concurrently, the company will progress its intellectual property filings and pursue commercialisation and licensing opportunities.
This work aligns with global efforts to secure rare earth supply chains, particularly for heavy rare earths, which remain supply-constrained and critical for emerging technologies. The Garnet Hills Project, with its granted mining lease and substantial garnet resource, positions Pure Resources to potentially contribute to these strategic supply needs.
Alongside rare earth recovery, Pure Resources is also advancing downstream materials innovation through a funded collaboration with Rice University on carbon nanotube fibre technologies, reflecting a broader integrated materials strategy.
Bottom Line?
Pure Resources’ early confirmation of heavy rare earth recovery from Garnet Hills garnet sets a promising foundation, but the path to commercial viability hinges on forthcoming quantitative testwork and patent progress.
Questions in the middle?
- What recovery rates will the expanded testwork reveal for heavy rare earth extraction?
- How will Pure Resources navigate the commercialisation and licensing of its proprietary recovery technology?
- To what extent will the planned drilling campaign validate the deposit’s grade continuity at depth?
