From Structure Topology to Chemical Composition. XXX. Refinement of the Crystal Structure and Chemical Formula of Shkatulkalite, Na₂Nb₂Na₃Ti(Si₂O₇)₂O₂(FO)(H₂O₄)(H₂2O)₃, a Lamprophyllite-Group (Seidozerite Supergroup) TS-Block Mineral from the Lovozero Massif, Kola Peninsula, Russia

• Published in: The Canadian Mineralogist
• Main Authors: Sokolova, Elena, Day, Maxwell C., Hawthorne, Frank C., Cámara, Fernando
• Other Authors: E. Sokolova, M.C. Day, F.C. Hawthorne, F. Cámara
• Format: Article in Journal/Newspaper
• Language: English
• Published: Mineralogical Association of Canada 2022
• Subjects: shkatulkalite; Ti-silicate; Lovozero alkaline massif; Kola Peninsula; structure refinement; chemical formula; lamprophyllite group; seidozerite supergroup; TS block; Settore GEO/06 - Mineralogia; Lovozero; kola peninsula
• Online Access: http://hdl.handle.net/2434/929733; https://doi.org/10.3749/canmin.2100016

Shkatulkalite, ideally Na5TiNb2(Si2O7)2O3F(H2O)7, is a lamprophyllite-group (seidozerite supergroup) TS-block mineral from the Lovozero massif, Kola Peninsula, Russia. The crystal structure of shkatulkalite was refined as triclinic, space group P-1, a 5.464(1), b 7.161(1), c 15.573(1) Å, α 90.00(3),...