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: P1 - 9.9% olivine Rietveld _database_code_amcsd 0005386 9.7501 8.9207 5.2593 90 105.897 90 C2/c atom x y z occ Biso MgM1 0 .906 .25 .984 .38 FeM1 0 .906 .25 .016 .38 CaM2 0 .302 .25 .67 SiT .287 .094 .232 .961 .42 AlT .287 .094 .232 .039 .42 O1 .115 .091 .138 .56 O2 .363 .250 .322 .70 O3 .352 .018 .004 .62