Mineral description : Monazite

Monazite in quartz from Godkärra.

Monazite crystal in quartz and feldspar from Godkärra.

Mineral class	Phosphates : Monazite - Xenotime group.
Chemical formula	(Ce,La,Nd,Th)PO4
Crystal system	Monoclinic.
Habitus	Tabular short prismatic crystals. Also as scattered grains.
Cleavage	Two good cleavages, conchoidal fracture.
Hardness	5-5.5
Density	4.8-5.5
Color	Yellowish brown to dark brown.
Streak	White.
Luster	Waxy, transparent to opaque.
Description
Occurance	In pegmatites as crystals or as an accessorical mineral in granite, syenite and gneiss.
Associates
Notes	Strongly radioactive.
Locations	A rare mineral in Sweden. Högsbo, Göteborg. Up to 5 cm big crystal fragments. Kårarvet Falun. As small misshaped crystals. Holma, Lurs socken, Bohuslän. Ruoutevaara, Jokkmokk, Lappland. Godkärra, Riddarhyttan, Västmanland.

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