AM_Pyroxene_12 Formula: (Mg.914 Fe.086) Si O3 Name: Pyroxene Unit cell: 18.243 8.834 5.19 90.0 90.0 90.0 , V=836.41 Space group: PBCA (61)

Molin G M , American Mineralogist , 74 (1989) p.593-598, Crystal-chemical study of cation disordering in Al-rich and Al-poor, orthopyroxenes from spinel lherzolite xenoliths, sample Le9A, 1150 C, 10 min