AM_Hornblende_10 Formula: Si6.216 Al2.434 Mg3.53 Fe.86 Ti.06 Cr.06 Ca1.84 Na.775 K.03 H2 O24 Name: Hornblende Unit cell: 9.874 17.995 5.298 90.0 105.4 90.0 , V=907.56 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: F9