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
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