Diopside Liang J, Hawthorne F C The Canadian Mineralogist 32 (1994) 541-552 Characterization of fine-grained mixtures of rock-forming minerals by Rietveld structure refinement: olivine + pyroxene Sample: P2 - 19.9% olivine Rietveld _database_code_amcsd 0005387 9.7497 8.9189 5.2576 90 105.903 90 C2/c atom x y z occ Biso MgM1 0 .908 .25 .970 .38 FeM1 0 .908 .25 .030 .38 CaM2 0 .301 .25 .67 SiT .288 .094 .233 .961 .42 AlT .288 .094 .233 .039 .42 O1 .113 .089 .140 .56 O2 .365 .250 .321 .70 O3 .349 .020 .003 .62