Chirvinskyite, (Na,Ca)13(Fe,Mn,□)2(Ti,Nb)2(Zr,Ti)3(Si2O7)4(OH,O,F)12, a new mineral with a modular wallpaper structure, from the Khibiny alkaline massif (Kola Peninsula, Russia)

• Language: unknown
• Published: 2019
• Subjects: Khibiny; Kola Peninsula; kola peninsula
• Online Access: http://hdl.handle.net/11701/19313

Chirvinskyite, (Na,Ca)13(Fe,Mn, )2(Ti,Nb)2(Zr,Ti)3(Si2O7)4(OH,O,F)12, is a new wöhlerite– related zirconotitano–sorosilicate. It is triclinic, P 1, a = 7.0477(5), b = 9.8725(5), c = 12.2204(9) Å, = 77.995(5), = 82.057(6), = 89.988(5) , V = 823.35(9) Å3, Z = 1. The mineral was found in albitized alka...