AM_Mn-foitite_3
Formula: Na.686 Ca.025 K.004 Al7.233 Mn1.299 Li.444 Ti.042 B3 Si5.982 F.388 O30.612 H3.252
Name: Mn-foitite
Unit cell: 15.9398 15.9398 7.1363 90.0 90.0 120.0 , V=1570.25
Space group: R3M (160)

Bosi F , Agrosi G , Lucchesi S , Melchiorre G , Scandale E , American Mineralogist , 90 (2005) p.1661-1668, Mn-tourmaline from island of Elba (Italy): Crystal chemistry., Sample: Tsl2m