A sample of metallic scandium. Mount Ridley Mines Limited hopes to expand its almost one billion tonne inferred scandium resource at its Grass Patch project near Esperance in WA. Credit: File Mount Ridley Mines' (ASX: MRD) second phase of of historical drill pulps re-assaying has uncovered a string of high-grade scandium intercepts up to eight kilometres outside the boundaries of the already massive resource at its Grass Patch project near Esperance in Western Australia.

Mount Ridley Mines says its latest “Selectro” test work has delivered its best scandium and rare earths recoveries to date. Credit: File Mount Ridley Mines (ASX: MRD) has delivered a powerful one-two punch from the latest round of metallurgical testwork using its proprietary “Selectro” leach process, achieving its highest-ever scandium and rare earth recoveries while simultaneously slashing its reagent use by half. The third metallurgical tilt has returned a stellar 91.

Mount Ridley Mines’ Grass Patch project near Esperance in Western Australia, home to the world’s largest publicly reported JORC-compliant scandium resource. Credit: File Mount Ridley Mines (ASX: MRD) has super-sized its scandium footprint at Grass Patch near Esperance in Western Australia, lifting the inventory to 946 million tonnes and claiming the global crown for the largest publicly reported JORC-compliant resource for the metal as its home-grown processing technology g

Mount Ridley Mines has lodged a patent for its "Selectro" leach process after it recovered up to 83 per cent heavy rare earths and notably, 56 per cent gallium where conventional methods recovered none.

Mount Ridley’s proprietary Selectro leach process has more than doubled recoveries of rare earth elements compared to conventional leaching. Credit: File Mount Ridley Mines (ASX: MRD) appears to have delivered a metallurgical knockout punch with its in-house developed leach technology achieving recoveries for a suite of critical minerals that more than double those of the industry-standard hydrochloric acid leach (HCL) process. In what could be a pivotal moment for the

Mount Ridley Mines' Grass Patch project where new mineralogy results have identified a potential processing pathway for its rare earths elements. Mount Ridley Mines (ASX: MRD) has delivered the first direct evidence of how rare earth elements are hosted at its Grass Patch project near Esperance, confirming they occur within discrete free-digging phosphate minerals that could crucially unlock a more economic pathway for processing. In the world of rare earths, finding a

Mount Ridley Mines' inaugural chief technology officer Chris Larder, who will lead the company's critical minerals processing technology strategy. Mount Ridley Mines (ASX: MRD) has appointed its inaugural chief technology officer, signalling a deliberate strategic pivot from defining resources to developing and commercialising its own critical minerals processing technology. The appointment of metallurgist Chris Larder, who has overseen Mount Ridley's technical programs

Mount Ridley Mines has listed on the US OTC markets under the ticker ‘MRDMF’. Mount Ridley Mines (ASX: MRD) has uncorked a fresh trading flow after gaining admission to the OTC Markets platform in the US under the ticker ‘MRDMF’, opening the door to the critical minerals-hungry US market. The move is aimed at expanding the company’s capital market exposure as it pushes on with its critical minerals ambitions at the mammoth Grass Patch Complex just 25km from Esperance in

Mount Ridley’s Mines’ drilling at the Grass Patch project near Esperance. Mount Ridley Mines (ASX: MRD) has strengthened the case for a major expansion of its Grass Patch scandium resource near Esperance in WA after new re-assay results confirmed high-grade mineralisation extends beyond the boundaries of its existing Block 2 resource. The company's latest tranche of results from historical drill samples has returned several broad, near-surface intercepts grading well ab

CSIRO's Lab22 research facility, where Mount Ridley Mines’ first-stage scandium alloy program will investigate new opportunities for advanced materials and industrial 3D printing. Mount Ridley Mines (ASX: MRD) has secured $50,000 in CSIRO co-funding for a $104,000 venture to unlock higher-value uses for scandium from its Grass Patch project in Western Australia. Management says the company is looking into far more than a simple mining development, setting its sights on

Mount Ridley Mines has extended its scandium resource in all directions at the company’s Grass Patch project near Esperance in WA. Mount Ridley Mines (ASX: MRD) has confirmed its Block 1 scandium resource near Esperance in Western Australia extends in all directions after a second round of re-assays on historical drill pulps returned a picnic basket of high-grade, shallow hits. The latest results, which include a 22-metre intersection grading 134.09 parts per million(pp

Drill pulps being delivered for re-assay from Mount Ridley Mine’s Grass Patch project in Western Australia Mount Ridley Mines (ASX: MRD) has unveiled a significant new high-grade scandium zone at its Grass Patch project near Esperance in Western Australia. Savvy capital-light re-assay of historical drill pulps has unearthed a massive 13-kilometre-long untested strike corridor. The results from the first phase of the program confirmed significant scandium mineralisation

Mount Ridley Mines has started phase one metallurgical test work at its Winstons and Keiths prospects, part of the company’s massive Grass Patch rare earths project near Esperance in WA. Mount Ridley Mines (ASX: MRD) has officially fired up a phase one metallurgical test work program at the Winstons and Keiths prospects, which form part of its Grass Patch heavy rare earths project in Western Australia. The critical minerals player has locked in leading Perth-based labor

Mount Ridley Mines’ 3D gravity inversion modelling has lit up multiple new targets outside its current rare earth resource footprint. Mount Ridley Mines (ASX: MRD)has unveiled a breakthrough at its namesake critical minerals project near Esperance, with sophisticated 3D gravity inversion modelling mapping out massive expansion potential across its already substantial resource footprint. The fresh modelling, completed by Perth-based Core Geophysics, has confirmed a rock-

Mount Ridley is hoping to unlock rare earth riches at its namesake Mount Ridley project near Esperance in WA Credit: File Mount Ridley Mines (ASX: MRD) has significantly bolstered its internal technical expertise, appointing highly experienced process engineer Chris Larder as technical advisor for metallurgy and processing. The new hire is a move designed to fast-track the company’s downstream processing initiatives and refine the integrated recovery pathway for its namesake

Pulps being delivered for re-assay from Mount Ridley Mine’s Grass Patch project in Western Australia. Credit: File As heavy rare earths, scandium and gallium prices soar, Mount Ridley Mines (ASX: MRD) has kicked off a strategic re-assay program of 3300 historical drill pulps in a move to deliver low-cost, near-term resource growth for a suite of critical minerals at its Grass Patch project near Esperance in Western Australia. The company says the program is a high-impact path

Mount Ridley Mines has unleashed a metallurgical beast at its Grass Patch project near Esperance. Historical testwork proved impressive heavy rare earths recoveries up to 86.5 per cent using a simple acid leach

Mount Ridley Mines has unveiled a heavy rare earths resource near Esperance in WA. Credit: File Mount Ridley Mines (ASX: MRD) appears to be assembling an intriguing critical minerals combo in Western Australia’s southeast, after chalking up a major heavy rare earths mineral resource estimate at its namesake project, 55 kilometres northeast of Esperance. The new inferred resource has weighed in at an impressive 122.56 million tonnes grading 889 parts per million (ppm) total r

Mount Ridley Mines’ newly appointed managing director, Allister Caird. Credit: File Mount Ridley Mines (ASX: MRD) has given its leadership deck a new look, bringing in seasoned capital markets operator David Wall as non-executive chairman. The company has also elevated its chief executive, Allister Caird, to the role of managing director and chief executive as it gears up for its next phase of critical minerals development in Western Australia. Wall, who has worked across equ

Mount Ridley Mines has delivered a maiden 368Mt scandium resource near Esperance, ranking it among the world’s largest and strengthening the company’s growing multi-element critical minerals portfolio.