Wadsleyite Finger L W, Hazen R M, Zhang J, Ko J, Navrotsky A Physics and Chemistry of Minerals 19 (1993) 361-368 The effect of Fe on the crystal structure of wadsleyite beta-(Mg1-xFex)2SiO4, 0.00<=x<=0.40 Sample: Fe40 _database_code_amcsd 0007738 5.739 11.515 8.316 90 90 90 Imma atom x y z occ Biso MgM1 0 0 0 .557 .68 FeM1 0 0 0 .443 .68 MgM2 0 .25 .97069 .766 .77 FeM2 0 .25 .97069 .234 .77 MgM3 .25 .12490 .25 .539 .82 FeM3 .25 .12490 .25 .461 .82 Si 0 .12107 .61621 .32 O1 0 .25 .2185 .62 O2 0 .25 .7168 .54 O3 0 .9878 .2568 .58 O4 .2626 .1234 .9926 .56