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: SPh single phase Rietveld _database_code_amcsd 0005385 9.7476 8.9174 5.2573 90 105.900 90 C2/c atom x y z occ Biso MgM1 0 .908 .25 .992 .38 FeM1 0 .908 .25 .008 .38 CaM2 0 .301 .25 .67 SiT .288 .094 .230 .961 .42 AlT .288 .094 .230 .039 .42 O1 .115 .088 .143 .56 O2 .363 .252 .320 .70 O3 .353 .019 .999 .62