AM_Ferrosilite_8
Formula: Fe1.5 Ca.5 Si2 O6
Name: Ferrosilite
Unit cell: 9.781 9.072 5.246 90.0 106.6 90.0 , V=446.09
Space group: C12/C1 (15)

Ohashi Y , Burnham C W , Finger L W , American Mineralogist , 60 (1975) p.423-434, The effect of Ca-Fe substitution on the clinopyroxene crystal structure, Fs75Wo25