Beryl
Aurisicchio C, Fioravanti G, Grubessi O, Zanazzi P F
American Mineralogist 73 (1988) 826-837
Reappraisal of the crystal chemistry of beryl
Sample: 6
Locality: Mohave county, Arizona, USA
_database_code_amcsd 0001175
9.2531 9.2531 9.1918 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  .3863 .1139     0            .0051  .0046  .0036  .0026      0      0
Be      .5     0   .25 .959 .008
Li      .5     0   .25 .033 .008
Si2     .5     0   .25 .008 .008
Al     2/3   1/3   .25 .826       .0064  .0064  .0063  .0032      0      0
Fe1    2/3   1/3   .25  .02       .0064  .0064  .0063  .0032      0      0
Fe2    2/3   1/3   .25 .097       .0064  .0064  .0063  .0032      0      0
Mg     2/3   1/3   .25 .058       .0064  .0064  .0063  .0032      0      0
O1   .3064 .2326     0            .0143  .0120  .0172  .0103      0      0
O2   .4960 .1434 .1451            .0123  .0115  .0067  .0073 -.0026 -.0009
Na       0     0   .25 .315       .0321  .0321  .0239  .0161      0      0
Cs       0     0   .25  .04       .0321  .0321  .0239  .0161      0      0