Heterosite- Purpurite (Fe,Mn)PO4 Orthorhombic

Description: Heterosite-purpurite represent a simple solid solution mineral found masses in complex granite pegmatites in association with other phosphates.

FLORENCE COUNTY: Heterosite-purpurite nodules up to 5 cm. across occur in the zoned pegmatites in sec. 22 T.39N. R.17E., near Fern. (Falster, Simmons and Moore, 1988; Koehler, 1989). The mineral is intergrown with apatite and alluaudite-varulite and readily weathers a dark brown.

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