AM_Oxy-dravite_1
Formula:
Na.742 K.011 Ca.007 Al6.213 Mg2.208 Fe.54 Ti.021 Cr.006 Zn.003 V.003 Mn.003 Si6 B3 O30.978 F.021 H.405
Name:
Oxy-dravite
Unit cell:
15.9267 15.9267 7.1991 90.0 90.0 120.0 , V=1581.47
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 TM501e, Locality: Kwale, Mombasa, Kenya