Forsterite Ottonello G, Princivalle F, Della Giusta A Physics and Chemistry of Minerals 17 (1990) 301-312 Temperature, composition, and fO2 effects on intersite distribution of Mg and Fe2+ in olivines Sample: 3153c _database_code_amcsd 0007496 4.7687 10.2555 6.0066 90 90 90 Pbnm atom x y z occ Biso MgM1 0 0 0 .783 .59 FeM1 0 0 0 .217 .59 MgM2 .9890 .2780 .25 .800 .59 FeM2 .9890 .2780 .25 .182 .59 MnM2 .9890 .2780 .25 .012 .59 CaM2 .9890 .2780 .25 .005 .59 SiT .4272 .0947 .25 .50 O1 .7659 .0917 .25 .58 O2 .2194 .4484 .25 .60 O3 .2795 .1635 .0338 .66