Fe2Mg2O5 Ballaran T B, Uenver-Thiele L, Woodland A B American Mineralogist 100 (2015) 628-632 Complete substitution of Fe2+ by Mg in Fe4O5: The crystal structure of the Mg2Fe2O5 end-member Locality: Synthetic _database_code_amcsd 0020340 2.8889 9.7282 12.5523 90 90 90 Cmcm atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Fe1 0 0 0 .4673 .0076 .0101 .0045 .0082 0 0 .0010 Mg1 0 0 0 .5327 .0076 .0101 .0045 .0082 0 0 .0010 Fe2 0 .26240 .11458 .7041 .00876 .0101 .0059 .0103 0 0 -.00018 Mg2 0 .26240 .11458 .2959 .00876 .0101 .0059 .0103 0 0 -.00018 Fe3 0 .51220 .25 .1411 .0154 .0108 .0097 .0258 0 0 .000 Mg3 0 .51220 .25 .8589 .0154 .0108 .0097 .0258 0 0 .000 O1 0 .1621 .25 .0115 .0139 .0091 .0117 0 0 .000 O2 0 .3603 .54576 .0121 .0110 .0081 .0171 0 0 .0033 O3 0 .0958 .64403 .0114 .0156 .0074 .0114 0 0 .0003