Bridgmanite Jephcoat A P, Hriljac J A, McCammon C A, O'Neill H St C, Rubie D C, Finger L W American Mineralogist 84 (1999) 214-220 High-resolution synchrotron X-ray powder diffraction and Rietveld structure refinement of two (Mg.95,Fe.05)SiO3 perovskite samples synthesized under different oxygen fugacity conditions Sample PV-A Locality: synthetic _database_code_amcsd 0002090 4.7839 4.9294 6.9000 90 90 90 Pbnm atom x y z occ Uiso Mg .5068 .5557 .25 .95 .0061 Fe .5068 .5557 .25 .05 .0061 Si .5 0 .5 .0042 O1 .1032 .4614 .25 .0040 O2 .1933 .2031 .5472 .0043