AM_Diopside_56 Formula: (Mg.976 Fe.024) Ca (Si1.922 Al.078) O6 Name: Diopside Unit cell: 9.7485 8.9179 5.2566 90.0 105.894 90.0 , V=439.52 Space group: C12/C1 (15)

Liang J , Hawthorne F C , The Canadian Mineralogist , 32 (1994) p.541-552, Characterization of fine-grained mixtures of rock-forming minerals by Rietveld, structure refinement: olivine + pyroxene, Sample: P5 - 49.9% olivine Rietveld