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Mines/Australia

Mount Weld mine

Mount Weld mine, Australia. Producing, open pit, mining rare earths.

Why Mount Weld is famous

Lynas's rare earth mine in Western Australia. Lynas reports record concentrate production in FY25 and total NdPr output of 6,558 t and total REO output of 10,462 t for the group in that year.1,2

Story cards

Timeline

  1. 2011Lynas starts Mount Weld concentrate production3

What kind of deposit

Carbonatite and alkaline intrusion

Mount Weld today

Where rare earths is mined todayMining in Australia

Where next

Mines

Same kind of depositMountain PassMountain Pass has mined rare earths since 1952. Mount Weld, a carbonatite complex, began in 2011.4ExamplesBrowns RangeTwo WA rare earth projects: Browns Range for heavy elements, Mount Weld for NdPr.5ExamplesNolansNolans, north of Alice Springs, holds a resource of 56 Mt at 2.6 per cent rare earth oxide.6ExamplesKvanefjeldGreenland has no rare earth mine output. Mount Weld has produced concentrate since 2011.1

Events

Led toLynas starts Mount Weld concentrate productionRead what happened near Mount Weld: Lynas starts Mount Weld concentrate production.1

Places

Located inLavertonMount Weld is about 30 km from Laverton.1

Deposit types

An example ofCarbonatite and alkaline intrusionMount Weld belongs to the carbonatite and alkaline intrusion family of deposits.7

Sources

  1. Appendix 4E and annual report for the year ended 30 June 2025 Lynas Rare Earths Ltd (ASX)
  2. data/minerals/operations.csv Prospector Trails (internal)
  3. Rare-Earth Elements, Professional Paper 1802-O US Geological Survey
  4. Form 10-K for the year ended 31 December 2025 MP Materials Corp (SEC)
  5. Browns Range HRE project page Northern Minerals
  6. Nolans project page Arafura Rare Earths
  7. Mineral Deposit Models (Bulletin 1693, Cox and Singer, eds., 1986) US Geological Survey

From the Prospector Trails mining history dataset: each fact links to the source it was checked against. Figures are as the source gives them, in the money of their day. Not investment advice.

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Pictures: Salar de Atacama, Chile, NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team (Public domain (NASA media, no copyright)); Pangkalpinang. Mijn 3b. Een reeks koelies bezig met het transporteeren van grond, Europeana (Public Domain Mark 1.0).