Forsterite McCormick T C, Smyth J R, Lofgren G E Physics and Chemistry of Minerals 14 (1987) 368-372 Site occupancies of minor elements in synthetic olivines as determined by channeling-enhanced X-ray emission Locality: sample from San Carlos, Arizona _database_code_amcsd 0007438 4.7641 10.2269 5.9952 90 90 90 Pbnm atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) FeM1 0 0 0 .097 .0035 .00122 .00232 .00001 -.00037 -.00040 MgM1 0 0 0 .903 .0035 .00122 .00232 .00001 -.00037 -.00040 FeM2 .99000 .27770 .25 .093 .0049 .00082 .00278 .00011 0 0 MgM2 .99000 .27770 .25 .907 .0049 .00082 .00278 .00011 0 0 Si .42649 .09432 .25 .0020 .00069 .00193 .00004 0 0 O1 .7661 .09172 .25 .0027 .00131 .0029 .00022 0 0 O2 .2206 .44764 .25 .0044 .00074 .0034 .00004 0 0 O3 .2783 .16309 .0337 .0040 .00120 .0030 .00000 -.0002 .00048