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: hydrous beryl
Locality: synthetic
_database_code_amcsd 0019467
9.213 9.213 9.206 90 90 120 P6/mcc
atom     x     y     z Biso
Al     2/3   1/3   .25  .15
Be      .5     0   .25  .33
Si   .3874 .1159     0  .11
O1   .3101 .2366     0  .47
O2   .4996 .1458 .1454  .28
Wat      0     0   .25   10