Wadsleyite Sawamoto H, Horiuchi H Physics and Chemistry of Minerals 17 (1990) 293-300 Beta (Mg0.9Fe0.1)2SiO4: single crystal structure, cation distribution, and properties of coordination polyhedra _database_code_amcsd 0007489 5.7107 11.4675 8.2778 90 90 90 Imma atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) MgM1 0 0 0 .89 .56 .0035 .0012 .0022 0 0 0 FeM1 0 0 0 .11 .56 .0035 .0012 .0022 0 0 0 MgM2 0 .25 .9707 .95 .58 .0062 .0010 .0015 0 0 0 FeM2 0 .25 .9707 .05 .58 .0062 .0010 .0015 0 0 0 MgM3 .25 .1266 .25 .88 .57 .0033 .0014 .0023 0 -.0002 0 FeM3 .25 .1266 .25 .12 .57 .0033 .0014 .0023 0 -.0002 0 SiT 0 .1202 .6161 .45 .0039 .0008 .0015 0 0 -.0001 O1 0 .25 .2165 .49 .0075 .0007 .0005 0 0 0 O2 0 .25 .7170 .54 .0087 .0001 .0016 0 0 0 O3 0 .9889 .2576 .57 .0045 .0009 .0010 0 0 .0005 O4 .2617 .1230 .9921 1.14 .0070 .0014 .0011 .0035 -.0004 -.0003