Brianite

brianite

panethite

whitlockite

schreibersite

Images

Formula: Na2CaMg(PO4)2
Anhydrous normal phosphate
Specific gravity: 3.00 to 3.10
Hardness: 4 to 5
Streak: White
Colour: Colourless
Solubility: Insoluble in water
Melting point: Between 800oC and 1,000oC
Environments

Meteorites

Localities

At the type locality, the Dayton meteorite, Montgomery county, Ohio, USA, brianite is a very rare component in phosphate nodules in the iron meteorite, occurring as grains up to 0.1-0.2 mm in size in small pockets in the metallic phase. Associated minerals include panethite, whitlockite, albite, enstatite, schreibersite, kamacite, taenite, graphite, sphalerite and troilite (AM 53.508, HOM).

Back to Minerals