Olivine Muller-Sommer M, Hock R, Kirfel A Physics and Chemistry of Minerals 24 (1997) 17-23 Rietveld refinement study of the cation distribution in (Co, Mg)-olivine solid solution Sample: M13 _database_code_amcsd 0007973 4.7814 10.2924 6.0007 90 90 90 Pbnm atom x y z occ Biso CoM1 0 0 0 .934 .52 MgM1 0 0 0 .066 .52 CoM2 .9891 .2767 .25 .816 .41 MgM2 .9891 .2767 .25 .184 .41 Si .4318 .0949 .25 .34 O1 .7534 .0873 .25 .47 O2 .2223 .4500 .25 .47 O3 .2929 .1641 .0384 .51