E.S. Grew, T. Armbruster, O. Medenbach, M.G. Yates, C.J. Carson (2007) Chopinite, [(Mg,Fe)3](PO4)2, a new mineral isostructural with sarcopside, from a fluorapatite segregation in granulite-facies paragneiss, Larsemann Hills, Prydz Bay, East Antarctica. Eur. J. Mineral., 19, 229–245.

A Mg-dominant analog of sarcopside, chopinite, occurs in one of many isolated fluorapatite segregations in a quartz mass roughly 10 cm thick and 3 m long in a granulite-facies paragneiss from Brattnevet, Larsemann Hills, Prydz Bay, East Antarctica. Grains are mostly anhedral and range in size from 0.1 × 0.3 mm to 0.2 × 0.6 mm. The...

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