Monazite
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Physical & Optical Properties
Mohs Hardness
| Mohs | Reference mineral | Monazite |
|---|---|---|
| 1 | Talc | |
| 2 | Gypsum | |
| 3 | Calcite | |
| 4 | Fluorite | |
| 5 | Apatite | ● |
| 6 | Orthoclase | |
| 7 | Quartz | |
| 8 | Topaz | |
| 9 | Corundum | |
| 10 | Diamond |
Crystal System
Value & Market
Where to Buy Monazite
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About Monazite
Monazite is a cerium lanthanum phosphate mineral typically forming yellow-brown, reddish-brown, or pale yellow tabular to prismatic monoclinic crystals with a resinous to waxy luster, and is an important ore of rare earth elements and thorium. It forms in granitic and pegmatitic rocks and as a heavy mineral placer deposit in sands, with large deposits in India, Brazil, Australia, and South Africa. Rare transparent yellow-brown crystals are occasionally faceted for collectors, though the mineral's mildly radioactive thorium content limits its gemological use.