Beryl
Groat L A, Rossman G R, Dyar M D, Turner D, Piccoli P M B,
Schultz A J, Ottolini L
The Canadian Mineralogist 48 (2010) 597-613
Crystal chemistry of dark blue aquamarine from the True Blue showing,
Yukon Territory, Canada
Note: neutron
Locality: True Blue showing, Yukon Territory, Canada
_database_code_amcsd 0006283
9.258 9.258 9.156 90 90 120 P6/mcc
atom      x      y      z  occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Be       .5      0    .25      .0073  .0078  .0074  .0067  .0037      0      0
Al      1/3    2/3    .25 .678 .0056  .0056  .0056  .0056  .0028      0      0
Mg      1/3    2/3    .25 .129 .0056  .0056  .0056  .0056  .0028      0      0
Fe      1/3    2/3    .25 .192 .0056  .0056  .0056  .0056  .0028      0      0
Si    .3855  .1123      0      .0052  .0057  .0052  .0050  .0029      0      0
O1    .3047  .2302      0      .0113  .0118  .0112  .0151  .0089      0      0
O2   .49500 .14196 .14519      .0089  .0110  .0124  .0061  .0080 -.0011 -.0006
Na        0      0      0 .432  .011   .009   .009   .015   .004      0      0
OW        0      0    .25 .912 .0186   .021   .021   .014  .0105      0      0
H      .025   .094   .181 .912  .052