Bridgmanite Bindi L, Sirotkina E A, Bobrov A V, Irifune T American Mineralogist 99 (2014) 866-869 Chromium solubility in perovskite at high pressure: The structure of (Mg1-xCrx)(Si1-xCrx)O3 (with x = 0.07) synthesized at 23 GPa and 1600 C Locality: synthetic _database_code_amcsd 0020143 4.8213 4.9368 6.9132 90 90 90 Pbnm atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Mg .9879 .0726 .25 .931 .0185 .0193 .0171 .0192 0 0 0 Cr1 .9879 .0726 .25 .069 .0185 .0193 .0171 .0192 0 0 0 Cr2 0 .5 0 .069 .0207 .0205 .0201 .0215 .0004 0 -.0002 Si 0 .5 0 .931 .0207 .0205 .0201 .0215 .0004 0 -.0002 O1 .1025 .4478 .25 .0243 .023 .0218 .0282 .0016 0 0 O2 .6853 .3124 .05 .0255 .025 .0258 .0256 -.0001 .0003 -.0003