AM_Hornblende_7
Formula: Si6.2 Al2.66 Mg3.55 Fe.83 Ca1.76 Na.76 K.024 H2 O24
Name: Hornblende
Unit cell: 9.828 17.917 5.29 90.0 105.16 90.0 , V=899.09
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: F5