Osmond Resources — homeASX: OSM · Orión Project

Minerals Hub / Mineral Dossiers / Monazite

A flat wedge-shaped crystal in warm honey-brown, its upper face frosted and its edges translucent, resting on dark gritty ground.
Illustrative artwork: monazite, a rare-earth phosphate, as a single generic crystal. Not material from this project. · Illustration · Osmond Hub
Assayed / quantified

Monazite

(Ce,La,Nd,Th)PO₄ · phosphate

Monazite is the rare-earth mineral at Orión — a minor component of the heavy-mineral assemblage by percentage, and the one Osmond has taken to a preliminary concentrate alongside zircon.

Yields

→ neodymium · praseodymium · dysprosium · terbium

Data status

Assayed / quantified

Class

phosphate

Why it matters

As general mineralogy, not an Osmond figure, monazite is a light-rare-earth phosphate that also contains thorium — so a monazite grade is read together with what the concentrate assays into, not on the mineral percentage alone.

Osmond has reported both at Orión. On a mass-balance head basis dated 19 February 2026, bulk channel samples returned 1.56–1.62% monazite, with total rare-earth oxides of 1.07–1.18%. Separately, on 3 March 2026, preliminary testwork produced a monazite concentrate grading 19.4% TREO (excluding yttrium), including 25% MREO, at approximately 76% recovery. The mineral percentages and the head TREO are grades for those channel samples; the same 19 February 2026 samples carry total heavy minerals of 29.4–32.8%, with up to roughly 40% estimated in the AV-01bis interval.

Two qualifications travel with the figures. The concentrate is preliminary testwork, and its 19.4% TREO excludes yttrium — a basis to carry with the number rather than drop. The mineral percentages themselves are mass-balance estimates calculated from oxide assays rather than directly measured.

Quantified in the bulk channel samples as a mass-balance head estimate, with a head TREO grade, and carried to a preliminary concentrate reported excluding yttrium; no deposit-wide grade.

Used for

  1. 01Permanent magnets — NdFeB for electric-vehicle traction motors and wind-turbine generators.
  2. 02Light rare earths — neodymium and praseodymium.
  3. 03Rare-earth feedstock — a phosphate at the start of the magnet supply chain.

Latest on Monazite

A wide upland of dry grass and pale limestone, ridges receding into haze under a bright overcast sky.Mining & ProductionOrión Project Overview7 min readA pale rock face crossed by dark vertical bands, with a geological hammer and hand lens resting on a ledge below them.Mining & ProductionReading the Orión seams: what the heavy-mineral layers tell us6 min readA cylindrical laminated motor rotor lying on a bench, with dark magnet blocks set into slots around its shaft.Geography & Supply ChainsThe rare-earth gap Europe can't recycle its way out of5 min readSeven small white bowls arranged on a dark surface, each holding a differently coloured fine powder.Applications & IndustriesMonazite to magnets: the rare-earth supply chain5 min readA cutaway block of ground drawn in section, its layered bands crossed by slender vertical and angled lines running down from the surface.Markets & EconomicsThe road to a maiden resource: what has to happen, and when4 min readA stack of brass laboratory test sieves, the topmost holding a scatter of pale granules on its fine mesh.Markets & EconomicsHow to read an early-stage mineral-sands explorer4 min readAn isometric drawing of a helix winding around a central column, cut away to show banded material travelling down the channel.Markets & EconomicsWhy co-products change mineral-sands economics4 min readA wide beach at low tide, dark streaks of heavy sand fanning in braided lines across pale flats toward a grey sea.Mining & ProductionWhat a lithified placer actually is4 min readA close view of dense dark froth, wet bubbles crowded across the surface with fine particles clinging to their skins.Mining & ProductionThe monazite upgrade: what the preliminary testwork found4 min readA close view of densely packed pale sand grains, with a single amber grain and two dark ones scattered among them.Mining & ProductionThe accessory suite: xenotime, allanite and the trace rare earths4 min readA helicopter flying low over open scrubland towing a long cylindrical sensor on a trailing cable that rides just above the ground.Innovation & TechnologyHow thorium gives a monazite deposit away from the air6 min readA large rotating mill drum discharging coarse crushed rock through a screen onto a conveyor, dust hanging in the air around the frame.Mining & ProductionBreaking rock without breaking the grains6 min readDark grains standing in spiky clusters from a tray of pale sand toward a magnet suspended above it, the sand beneath visibly paler.Mining & ProductionHow two properties sort four minerals6 min readA circular microscope field filled with tightly packed mineral grains in cross-section, pale, dark and brown, each separated by thin boundaries.Innovation & TechnologyThe model that decides which mineral you found6 min readFour large parallel process lines on steel supports, each in different coloured lagging, with control valves and sensors set into them at intervals.Innovation & TechnologyWhat a four-product plant asks of its controls6 min readFour shallow trays in a row on a bench, each holding a different sand — dark grey, reddish-brown, pale honey and dull yellow-brown.Innovation & TechnologyReconciling a mine that makes four products6 min readA plain grey detector housing mounted on an aluminium tripod in dry sparse grass, a cable running to a small closed case beside one leg.Innovation & TechnologyWhat a thorium channel can and cannot see6 min readPlain steel drums standing banded and strapped on pallets inside an open shipping container, braced with timber dunnage against the walls.Geography & Supply ChainsWhy monazite ships under the radioactive-materials rules4 min readA sealed woven bulk bag standing filled and closed on a pallet in a warehouse aisle, two identical bags on pallets receding behind it.Markets & EconomicsThe customs code decides what your mineral is5 min readNine plain steel drums with clamped lids standing in three rows on a pallet in a storage bay, two loaded pallets behind against a bare wall.SustainabilityWhen a mineral concentrate becomes a regulated material6 min readA very large open steel generator ring standing on a low cradle, its inner face lined with a continuous run of flat rectangular pole pieces.Applications & IndustriesWhat removing a gearbox costs in rare earths5 min readA cylindrical robotic joint housing with its end cover removed on a bench, exposing stator windings, the rotor in its bore and a gear ring.Applications & IndustriesThe temperature a robot joint magnet must survive5 min read
OnwardRare Earths hub