AM_Ferrosilite_7 Formula: Si2 Fe1.3 Ca.7 O6 Name: Ferrosilite Unit cell: 9.812 9.049 5.233 90.0 105.3 90.0 , V=448.16 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, Fs65Wo35