AM_Uvite_8 Formula: Ca.746 Na.221 Mg3.21 Ti.027 V.162 Li.066 Cr.015 Al5.916 Si5.604 B3 F.854 O30.146 H3.146 Name: Uvite Unit cell: 15.957 15.957 7.175 90.0 90.0 120.0 , V=1582.18 Space group: R3M (160)

MacDonald D J , Hawthorne F C , The Canadian Mineralogist , 33 (1995) p.849-858, The crystal chemistry of Si=Al substitution in tourmaline, Sample: T80