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: P9 - 89.6% olivine Rietveld _database_code_amcsd 0005394 9.747 8.914 5.2590 90 105.90 90 C2/c atom x y z occ Biso MgM1 0 .898 .25 .962 .38 FeM1 0 .898 .25 .038 .38 CaM2 0 .299 .25 .67 SiT .293 .090 .234 .961 .42 AlT .293 .090 .234 .039 .42 O1 .118 .080 .145 .56 O2 .366 .250 .320 .70 O3 .368 .028 .023 .62