Chopinite, [(Mg,Fe)(3)square](PO4)(2), a new mineral isostructural with sarcopside, from a fluorapatite segregation in granulite-facies paragneiss, Larsemann Hills, Prydz Bay, East Antarctica

• Published in: European Journal of Mineralogy
• Main Authors: Grew, ES, Armbruster, Thomas, Medenbach, O., Yates, M.G., Carson, Christopher
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: E. Schweizerbartsche Verlagsbuchhandlung
• Subjects: Keywords: anatexis; chopinite; crystal structure; electron probe analysis; granulite facies; mineral property; new mineral; Antarctica; East Antarctica; Larsemann Hills; Prydz Bay Anatexis; Electron microprobe; Phosphate; Prydz Bay; Antarc*
• Online Access: http://hdl.handle.net/1885/39936; https://doi.org/10.1127/0935-1221/2007/0019-1712; https://openresearch-repository.anu.edu.au/bitstream/1885/39936/5/chopinite_article.pdf.jpg; https://openresearch-repository.anu.edu.au/bitstream/1885/39936/7/01_Grew_Chopinite,_2007.pdf.jpg

Chopinite, the Mg-dominant analogue of sarcopside, is a new mineral corresponding to synthetic Mg3(PO4)2- II, a high-pressure polymorph of the meteoritic mineral farringtonite. A representative electron-microprobe analysis is SiO2 0.32, P2O5 47.32, Al2O3