Mg.93Fe.07SiO3 Zhang L, Meng Y, Dera P, Yang W, Mao W L, Mao H-K Proceedings of the National Academy of Sciences 110 (2013) 6292-6295 Single-crystal structure determination of (Mg,Fe)SiO3 postperovskite Note: P = 120 GPa Locality: synthetic _database_code_amcsd 0019942 2.466 8.130 6.108 90 90 90 Cmcm atom x y z occ Uiso Mg 0 .256 .25 .93 .010 Fe 0 .256 .25 .07 .010 Si 0 0 0 .008 O1 0 .929 .25 .022 O2 0 .639 .437 .015