Beryl
Gatta G D, Nestola F, Bromiley G D, Mattauch S
American Mineralogist 91 (2006) 29-34
The real topological configuration of the extra-framework content in
alkali-poor beryl: a multi-methodological study
Locality: Shengus, Haramosh Mts, Gilgit, Northern Areas, Pakistan
_database_code_amcsd 0003994
9.2099 9.2099 9.1894 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)
Al      2/3    1/3   .25      .0029  .0018  .0018  .0052  .0009      0      0
Be       .5      0   .25      .0057  .0065  .0039  .0059  .0019      0      0
Si    .3870  .1157     0      .0032  .0035  .0029  .0042  .0023      0      0
O1    .3096  .2361     0      .0079  .0075  .0074  .0119  .0059      0      0
O2    .4987  .1454 .1452      .0056  .0064  .0046  .0056  .0027 -.0031 -.0016
Ow        0      0   .25  .34  .071
H    -.0287 -.0709 .3327 .056   .04