Bridgmanite Yagi T, Mao H K, Bell P M Physics and Chemistry of Minerals 3 (1978) 97-110 Structure and crystal chemistry of perovskite-type MgSiO3 Sample: P = 1 bar, T = 25 C Locality: synthetic _database_code_amcsd 0007339 4.780 4.933 6.902 90 90 90 Pbnm atom x y z Biso Mg .974 .063 .25 .5 Si 0 .5 0 .5 O1 .096 .477 .25 .8 O2 .696 .291 .056 .8