AM_Cummingtonite_2
Formula: Fe2.558 Mg4.344 Al.012 Ca.086 Si8 O24
Name: Cummingtonite
Unit cell: 9.5015 18.1289 5.3089 90.0 102.09 90.0 , V=894.18
Space group: C12/M1 (12)

Yang H , Hirschmann M M , American Mineralogist , 80 (1995) p.916-922