AM_Mn-foitite Formula: Na.776 Ca.025 K.004 Al7.251 Mn.978 Li.78 Ti.033 Zn.012 B3.024 Si5.922 F.525 O30.475 H3.388 Name: Mn-foitite Unit cell: 15.9137 15.9137 7.1302 90.0 90.0 120.0 , V=1563.78 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: Tsl2z