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: 3263d _database_code_amcsd 0007502 4.7620 10.2207 5.9907 90 90 90 Pbnm atom x y z occ Biso MgM1 0 0 0 .905 .39 FeM1 0 0 0 .085 .39 NiM1 0 0 0 .010 .39 MgM2 .9903 .2776 .25 .912 .39 FeM2 .9903 .2776 .25 .079 .39 MnM2 .9903 .2776 .25 .003 .39 CaM2 .9903 .2776 .25 .007 .39 SiT .4267 .0943 .25 .32 O1 .7662 .0918 .25 .43 O2 .2200 .4479 .25 .41 O3 .2782 .1632 .0333 .46