Bridgmanite Horiuchi H, Ito E, Weidner D J American Mineralogist 72 (1987) 357-360 Perovskite-type MgSiO3: Single-crystal X-ray diffraction study Locality: synthetic _database_code_amcsd 0001071 4.7754 4.9292 6.8969 90 90 90 Pbnm atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Mg .5141 .5560 .25 .00480 .00459 .00257 .00044 0 0 Si .5 0 .5 .00296 .00298 .00100 -.00004 .00002 -.00009 O1 .1028 .4660 .25 .00376 .00472 .00090 .00011 0 0 O2 .1961 .2014 .5531 .00372 .00365 .00179 .00070 .00029 .00048