Bertrandite Downs J W, Ross F K American Mineralogist 72 (1987) 979-983 Neutron-diffraction study of bertrandite Note: O2y has been corrected _database_code_amcsd 0001126 8.7135 15.268 4.5683 90 90 90 Cmc2_1 atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Si .3251 .1141 .6540 .0103 .0030 .0090 -.0008 -.0004 .0000 Be1 .1726 .05249 .1562 .0104 .0054 .0107 .0008 -.0007 -.0006 Be2 .3264 .22023 .1509 .0126 .0059 .0111 .0003 -.0005 .0013 H1 0 .2006 .4203 .0210 .0289 .0351 0 0 -.0176 H2 .5 .3675 .4530 .0295 .0250 .0407 0 0 -.0153 O1 .2899 .1243 0 .0136 .0042 .0096 -.0015 .0018 -.0005 O2 .2095 .0430 .5065 .0126 .0053 .0101 -.0020 -.0012 .0003 O3 .2938 .2091 .5012 .0153 .0047 .0099 .0015 -.006 .0005 O4 .5 .0847 .5916 .0077 .0092 .0172 0 0 -.0027 O5 .5 .2553 .0877 .0105 .0101 .0158 0 0 .0028 O6 0 .0876 .0978 .0122 .0104 .0137 0 0 .0011