Bridgmanite Sugahara M, Yoshiasa A, Komatsu Y, Yamanaka T, Bolfan-Casanova N, Nakastuka A, Sasaki S, Tanaka M American Mineralogist 91 (2006) 533-536 Reinvestigation of the MgSiO3 perovskite structure at high pressure Locality: synthetic Sample: P = 7.8 GPa _database_code_amcsd 0004130 4.722 4.880 6.825 90 90 90 Pbnm atom x y z Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Mg .5152 .5585 .25 .43 .0047 .0039 .0078 .0009 .0000 .0000 Si .5 0 .5 .21 .0017 .0036 .0030 .0001 .0001 -.0007 O1 .1040 .4646 .25 .25 .0032 .0032 .0032 .0000 .0000 .0000 O2 .1926 .2012 .5531 .28 .0035 .0035 .0035 .0000 .0000 .0000