Forsterite 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: M501 _database_code_amcsd 0007981 4.7717 10.2542 5.9914 90 90 90 Pbnm atom x y z occ Biso CoM1 0 0 0 .667 .52 MgM1 0 0 0 .333 .52 CoM2 .9909 .2775 .25 .333 .41 MgM2 .9909 .2775 .25 .667 .41 Si .4284 .0943 .25 .34 O1 .7599 .0924 .25 .47 O2 .2151 .4513 .25 .47 O3 .2843 .1624 .0379 .51