AM_Pyroxene_4 Formula: (Mg.895 Fe.105) Si O3 Name: Pyroxene Unit cell: 18.244 8.805 5.196 90.0 90.0 90.0 , V=834.68 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 Le4A, 1050 C, 90 min