Images
Formula: La(PO4)
Anhydrous phosphate, monazite group
Crystal System: Monoclinic
Specific gravity: 5.17 to 5.27 measured, 5.13 calculated
Hardness: 5 to 5½
RADIOACTIVE if thorium-rich
Environments
Plutonic igneous environments
Metamorphic environments
Monazite-(La) occurs in fissure veins, granite and
gneissic metamorphic rocks
(HOM).
Localities
The type locality is the Kounrad Massif, Balkhash, Karaganda Region, Kazakhstan.
Back to Minerals