AM_Diopside_53 Formula: (Mg.97 Fe.03) Ca (Si1.922 Al.078) O6 Name: Diopside Unit cell: 9.7497 8.9189 5.2576 90.0 105.903 90.0 , V=439.69 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: P2 - 19.9% olivine Rietveld