AM_Hornblende_8 Formula: Si6.368 Al2.242 Mg3.9 Fe.55 Ti.04 Cr.06 Ca1.84 Na.68 K.037 H2 O24 Name: Hornblende Unit cell: 9.866 17.994 5.291 90.0 105.24 90.0 , V=906.27 Space group: C12/M1 (12)

Oberti R , Hawthorne F C , Ungaretti L , Cannillo E , The Canadian Mineralogist , 33 (1995) p.867-878, [6]Al disorder in amphiboles from mantle peridotites, Sample: F7