AM_Oxy-schorl_1 Formula: Na.451 Ca.01 K.006 Al6.981 Fe1.365 Mg.612 Mn.054 Ti.027 Zn.012 V.003 Si5.952 B3 O30.963 F.038 H.395 Name: Oxy-schorl Unit cell: 15.9391 15.9391 7.1515 90.0 90.0 120.0 , V=1573.46 Space group: R3M (160)

Bosi F , Lucchesi S , European Journal of Mineralogy , 16 (2004) p.335-344, Crystal chemistry of the schorl-dravite series, Note: Tourmaline TM84a, Locality: Cooma, New South Wales, Australia