Wadsleyite Horiuchi H, Sawamoto H American Mineralogist 66 (1981) 568-575 Beta-Mg2SiO4: Single-crystal X-ray diffraction study case 1 _database_code_amcsd 0000834 5.6983 11.4380 8.2566 90 90 90 Imma atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Mg1 0 0 0 0.0025 0.0011 0.0017 0 0 0 Mg2 0 .25 .9701 0.0035 0.0008 0.0013 0 0 0 Mg3 .25 .1276 .25 0.0030 0.0008 0.0017 0 -.0003 0 Si1 0 .1198 .6168 0.0016 0.0004 0.0008 0 0 0 O1 0 .25 .2166 0.0029 0.0007 0.0014 0 0 0 O2 0 .25 .7164 0.0034 0.0001 0.0013 0 0 0 O3 0 .9900 .2558 0.0033 0.0005 0.0011 0 0 -.0001 O4 .2615 .1225 .9925 0.0026 0.0006 0.0013 -.0001 0.0002 0