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: P7 - 70.0% olivine Rietveld _database_code_amcsd 0005392 9.7493 8.9142 5.2564 90 105.893 90 C2/c atom x y z occ Biso MgM1 0 .907 .25 .992 .38 FeM1 0 .907 .25 .008 .38 CaM2 0 .300 .25 .67 SiT .288 .091 .229 .961 .42 AlT .288 .091 .229 .039 .42 O1 .113 .089 .136 .56 O2 .365 .251 .327 .70 O3 .353 .025 .010 .62