Science
Rare Earths Oxide Produced From Halleck Creek Ore
Major Technical BreakthroughHighlights Rare earth oxides were produced from Halleck Creek ore using the updated preliminary Pre-Feasibility Study (“PFS”) mineral processing flowsheet1A Mixed Rare Earth Oxalate and Mixed Rare Earth Oxide were created from purified leachate solution using the material from the impurity removal testing2This is the most significant technical milestone achieved for the Project to date DENVER, Dec. 16, 2025 (GLOBE NEWSWIRE) -- American Rare Earths (ASX: ARR | OTCQX: A
About this update from American Rare Earths Ltd
[{"type":"image","alt":"American Rare Earths","displaySize":"","headline":null,"caption":"American Rare Earths","className":"","disableSlideshowImg":false,"size":{"original":{"width":300,"height":209,"url":"https://media.zenfs.com/en/globenewswire.com/8df00d7f33c3f59b4bb7ac06db715f2e"},"resized":{"url":"https://s.yimg.com/ny/api/res/1.2/e4jRjCSqHnshStFKM_.S9Q--/YXBwaWQ9aGlnaGxhbmRlcjt3PTQyMDtoPTI5MztjZj13ZWJw/https://media.zenfs.com/en/globenewswire.com/8df00d7f33c3f59b4bb7ac06db715f2e","width":300,"height":209}},"lazy":false},{"type":"text","content":"Major Technical Breakthrough","length":28,"tagName":"p"},{"type":"text","content":"Highlights","length":10,"tagName":"p"},{"type":"list","items":[{"val":[{"type":"text","content":"Rare earth oxides were produced from Halleck Creek ore using the updated preliminary Pre-Feasibility Study (“PFS”) mineral processing flowsheet1","length":144,"tagName":"p"}]},{"val":[{"type":"text","content":"A Mixed Rare Earth Oxalate and Mixed Rare Earth Oxide were created from purified leachate solution using the material from the impurity removal testing2","length":152,"tagName":"p"}]},{"val":[{"type":"text","content":"This is the most significant technical milestone achieved for the Project to date","length":81,"tagName":"p"}]}],"tagName":"ul","bulletedList":true,"length":377,"olType":false},{"type":"text","content":"DENVER, Dec. 16, 2025 (GLOBE NEWSWIRE) -- American Rare Earths (ASX: ARR | OTCQX: ARRNF | ADR: AMRRY) (“ARR” or the “Company”) has successfully completed another critical stage in its mineral processing program by producing a mixed rare earths oxide (“MREO”) using the updated preliminary PFS mineral processing flowsheet.","length":322,"tagName":"p"},{"type":"text","content":"MREO from Halleck Creek (“the Project”) was produced using the material – a pregnant leach solution (“PLS”) – from the impurity removal testing campaign3. This was achieved through precipitating a mixed rare earth oxalate and then creating MREO powder (see Figure 1). This major technical milestone confirms that rare earths can be extracted into metallic oxides from Halleck Creek ore using the updated preliminary PFS mineral processing flowsheet currently being finalized for the upcoming PFS. Solvent extraction computer simulation is now underway, using the results of these tests.","length":586,"tagName":"p"},{"type":"text","content":"SGS in ...