Topaz
Komatsu K, Kagi H, Marshall W G, Kuribayashi T, Parise J B, Kudoh Y
American Mineralogist 93 (2008) 217-227
Pressure dependence of the hydrogen-bond geometry in topaz-OD from neutron
powder diffraction
Locality: synthetic
Sample: 58 tons, P = 6.2 GPa
_database_code_amcsd 0004522
4.6755 8.8410 8.2823 90 90 90 Pbnm
atom     x     y     z occ  Uiso
Al    .901 .1325  .090     .0090
Si    .405 .9397   .25     .0090
O1    .718 .0251   .25     .0095
O2    .443 .7549   .25     .0095
O3   .2140 .9932 .0933     .0095
O4    .593 .2543 .0708     .0095
D1    .467  .180  .124 .59  .066
D2    .510  .272  .178 .41  .046