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: 7 tons, P = 0.0001 GPa
_database_code_amcsd 0004517
4.7316 8.9328 8.4286 90 90 90 Pbnm
atom     x     y     z occ  Uiso
Al   .9060 .1310 .0813     .0016
Si   .4034 .9432   .25     .0028
O1   .7154 .0264   .25     .0049
O2   .4450 .7572   .25     .0049
O3   .2148 .9950 .0931     .0049
O4   .5932 .2529 .0640     .0049
D1    .445 .1889 .1161 .59  .081
D2    .545 .2954 .1714 .41  .045