Topaz
Gatta G D, Nestola F, Ballaran T B
Physics and Chemistry of Minerals 33 (2006) 235-242
Elastic behaviour and structural evolution
of topaz at high pressure
Locality: Ouro Preto, Minas Gerias, Brazil
Sample: P = 5.79 GPa
_database_code_amcsd 0009028
4.6071 8.7614 8.2765 90 90 90 Pbnm
atom     x     y     z  Uiso
Al   .9064 .1309 .0811 .0055
Si   .4023 .9404   .25 .0047
O1   .7884 .5295   .25 .0046
O2   .4482 .7555   .25 .0047
O3   .7856 .0094 .9092 .0059
FO   .9046 .7531 .0637 .0110