Bridgmanite Ross N L, Hazen R M Physics and Chemistry of Minerals 17 (1990) 228-237 High-pressure crystal chemistry of MgSiO3 perovskite Sample: P = 10.6 GPa Locality: synthetic _database_code_amcsd 0007488 4.710 4.873 6.807 90 90 90 Pbnm atom x y z Biso Mg .5114 .5566 .25 .40 Si .5 0 .5 .40 O1 .0991 .4640 .25 .23 O2 .1964 .2012 .5612 .08