Proshchenkoite-(Y) from Russia - a new mineral species in the vicanite group: descriptive data and crystal structure

• Published in: Mineralogical Magazine
• Main Authors: Raade, G., Grice, J. D., Erambert, M., Kristiansson, Per, Witzke, T.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Mineralogical Society of Great Britain and Ireland 2008
• Subjects: Subatomic Physics; nuclear microprobe; electron-microprobe data; REE borosilicate; group; vicanite; okanoganite-(Y); proshchenkoite-(Y); new mineral species; data; crystal structure; Tommot REE-Nb deposit; Russia; Tommot; Yakutia
• Online Access: https://lup.lub.lu.se/record/1399273; https://doi.org/10.1180/minmag.2008.072.5.1071

A REE-bearing fluorosilicate from the Tommot REE-Nb deposit in Yakutia, Russia, described without a name in 1966, is characterized here as a new species, proshchenkoite-(Y), of the vicanite group of borosilicates. Wavelength-dispersive electron probe analyses gave the following empirical formula: (Y...