AM_Diopside_54 Formula: (Mg.982 Fe.018) Ca (Si1.922 Al.078) O6 Name: Diopside Unit cell: 9.7489 8.9181 5.2574 90.0 105.888 90.0 , V=439.63 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: P3 - 30.6% olivine Rietveld