Florencite-(Nd)

florencite-(Nd)

neodymium

churchite-(Y)

todorokite

Images

Formula: NdAl3(PO4)2(OH)6
Anhydrous phosphate, plumbogummite group, alunite supergroup, neodymium-bearing mineral
Crystal System: Trigonal
Specific gravity: 3.70 calculated
Hardness: 5 to 6
Streak: White
Colour: Moderate brown
Weakly RADIOACTIVE
Environments

Sedimentary environments

Localities

At the type locality, the Sausalito Road Quarry, Sausalito, Marin County, California, USA, florencite-(Nd) occurs lining surfaces of fractures in a weathered chert layer in shale. Associated minerals include churchite-(Y), todorokite, lithiophorite and hematite (HOM).

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