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: X-ray
Locality: True Blue showing, Yukon Territory, Canada
_database_code_amcsd 0006282
9.2909 9.2909 9.1996 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      .0087  .0096   .008  .0078  .0041      0      0
Al      1/3    2/3    .25 .678 .0058  .0055  .0055  .0065  .0027      0      0
Mg      1/3    2/3    .25 .129 .0058  .0055  .0055  .0065  .0027      0      0
Fe      1/3    2/3    .25 .192 .0058  .0055  .0055  .0065  .0027      0      0
Si   .38506 .11197      0      .0057  .0060  .0055  .0059  .0031      0      0
O1    .3044  .2300      0      .0138  .0144  .0121  .0194  .0100      0      0
O2   .49435 .14133 .14509      .0106  .0134  .0130  .0079  .0084 -.0024 -.0003
Na        0      0      0 .425  .017   .011   .011   .028  .0055      0      0
OW        0      0    .25 .912  .049   .060   .060   .028   .030      0      0
H        .0    .09    .19 .912   .05