Beryl
Aurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F
American Mineralogist 73 (1988) 826-837
Reappraisal of the crystal chemistry of beryl
Sample: 8
Locality: Violet Claims, Wah Wah Mountains, Beaver County, Utah, USA
_database_code_amcsd 0001178
9.2242 9.2242 9.1934 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)
Si1  .3870 .1154     0            .0037  .0036  .0038  .0020      0      0
Be      .5     0   .25 .988 .005
Li      .5     0   .25 .005 .005
Si2     .5     0   .25 .002 .005
Al1     .5     0   .25 .004 .005
Al2    2/3   1/3   .25 .954       .0041  .0041  .0043  .0021      0      0
Fe1    2/3   1/3   .25 .002       .0041  .0041  .0043  .0021      0      0
Fe2    2/3   1/3   .25 .039       .0041  .0041  .0043  .0021      0      0
Mn     2/3   1/3   .25 .007       .0041  .0041  .0043  .0021      0      0
O1   .3095 .2362     0            .0102  .0080  .0129  .0066      0      0
O2   .4983 .1451 .1451            .0079  .0058  .0061  .0032 -.0023 -.0004
Na       0     0   .25 .061       .0258  .0258  .1033  .0129      0      0
Cs       0     0   .25 .015       .0258  .0258  .1033  .0129      0      0
Rb       0     0   .25 .002       .0258  .0258  .1033  .0129      0      0