AM_Uvite_7 Formula: Ca.769 Na.202 Mg3.288 Ti.036 V.123 Li.054 Cr.009 Al5.862 Si5.628 B3 F.805 O30.195 H3.195 Name: Uvite Unit cell: 15.958 15.958 7.18 90.0 90.0 120.0 , V=1583.48 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: T79