AM_Orthopyroxene_1 Formula: Si1.986 Al.028 O6 Mg1.128 Fe.801 Mn.026 Cr.004 Ti.005 Ca.036 Name: Orthopyroxene Unit cell: 18.32 8.917 5.219 90.0 90.0 90.0 , V=852.57 Space group: PBCA (61)

Domeneghetti M C , Tazzoli V , Ballaran T B , Molin G M , American Mineralogist , 81 (1996) p.842-846, Orthopyroxene from the Serra de Mage meteorite: A structure-refinement, procedure for a Pbca phase coexisting with a C2/c exsolved phase, Sample Opx SDM N.7, heated