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: P8 - 79.9% olivine Rietveld _database_code_amcsd 0005393 9.7498 8.9160 5.2586 90 105.872 90 C2/c atom x y z occ Biso MgM1 0 .905 .25 .998 .38 FeM1 0 .905 .25 .002 .38 CaM2 0 .302 .25 .67 SiT .287 .092 .230 .961 .42 AlT .287 .092 .230 .039 .42 O1 .111 .089 .137 .56 O2 .368 .250 .327 .70 O3 .358 .021 .010 .62