From Structure Topology To Chemical Composition. XIX. Titanium Silicates: Revision of the Crystal Structure and Chemical Formula of Bafertisite, Ba2Fe2+4Ti2(Si2O7)2O2(OH)2F2, A Group-II TS-Block Mineral

• Published in: The Canadian Mineralogist
• Main Authors: F. Cámara, E. Sokolova, Y. A. Abdu, L. A. Pautov
• Other Authors: Y.A. Abdu, L.A. Pautov
• Format: Article in Journal/Newspaper
• Language: English
• Published: Mineralogical Association of Canada 2016
• Subjects: bafertisite; holotype-; electron microprobe; Mössbauer spectroscopy; IR and Raman spectroscopy; single-crystal X-ray diffraction; crystal structure; chemical formula; TS block; Group II; Settore GEO/06 - Mineralogia; Kola Peninsula; Obo; Sokolova; kola peninsula
• Online Access: http://hdl.handle.net/2434/477350; https://doi.org/10.3749/canmin.1500059

The crystal structure and chemical formula of bafertisite, Ba2Fe2+4Ti2(Si2O7)2O2(OH)2F2, have been revised. Three samples of bafertisite were studied using electron-microprobe analysis, Mössbauer spectroscopy, IR and Raman spectroscopy, and single-crystal X-ray diffraction. These samples are from (1...