AM_Hornblende_4 Formula: Si6.232 Al2.318 Mg3.33 Fe1.08 Ti.12 Cr.08 Ca1.84 Na.744 K.039 H2 O24 Name: Hornblende Unit cell: 9.873 18.011 5.299 90.0 105.17 90.0 , V=909.45 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: F1