Beryl
Gibbs G V, Breck D W, Meagher E P
Lithos 1 (1968) 275-285
Structural refinement of hydrous and anhydrous synthetic beryl,
Al2(Be3Si6)O18 and emerald, Al1.9Cr0.1(Be3Si6)O18
Note: anhydrous beryl
Locality: synthetic
_database_code_amcsd 0019466
9.212 9.212 9.187 90 90 120 P6/mcc
atom     x     y     z Biso
Al     2/3   1/3   .25  .30
Be      .5     0   .25  .27
Si   .3875 .1159     0  .21
O1   .3109 .2375     0  .55
O2   .4992 .1462 .1450  .37