AM_Diopside_59 Formula: (Mg.998 Fe.002) Ca (Si1.922 Al.078) O6 Name: Diopside Unit cell: 9.7498 8.916 5.2586 90.0 105.872 90.0 , V=439.70 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: P8 - 79.9% olivine Rietveld