AM_Oxy-dravite
Formula: Na.559 Ca.263 K.003 Mg2.034 Al6.198 Fe.801 Ti.06 Cr.015 Mn.009 V.009 Si5.88 B3 O30.94 F.06 H.469
Name: Oxy-dravite
Unit cell: 15.9636 15.9636 7.1911 90.0 90.0 120.0 , V=1587.04
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 TM112c, Locality: Haddam, Connecticut, U.S.A.