AM_Pyroxene-ideal_91 Formula: Mg Ca Si2 O6 Name: Pyroxene-ideal Unit cell: 9.607 8.939 5.161 90.0 108.3 90.0 , V=420.80 Space group: C12/C1 (15)

Thompson R M , Downs R T , American Mineralogist , 89 (2004) p.614-628, Model pyroxenes II: Structural variation as a function of tetrahedral rotation, model diopside at 5.3 GPa after Levien and Prewitt (1981), with O3-O3-O3 angle = 163.6 and model oxygen radius = 1.304