Caryinite

arsenate

metamorphic

Formula: (Na,Pb)(Ca,Na)CaMn2+2(AsO4)3
Anhydrous normal arsenate
Specific gravity: 4.29
Hardness: 4
Streak: Light brown
Colour: Brown to yellowish brown; light yellow-brown in transmitted light
Solubility: Soluble in nitric acid
Environments:

Metamorphic environments

Caryinite is a rare arsenate, found almost exclusively in Sweden.

At the type locality, Långban, Filipstad, Värmland, Sweden, caryinite occurs in veinlets in skarn in a manganese-iron metamorphosed orebody, associated with hedyphane, hausmannite, calcite and berzeliite.

Caryinite alters to berzeliite.

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