Sillimanite
Burt J B, Ross N L, Angel R J, Koch M
American Mineralogist 91 (2006) 319-326
Equations of state and structures of andalusite
to 9.8 GPa and sillimanite to 8.5 GPa
Locality: Okkamitiya Sabaragamuiwa province, Sri Lanka
Sample: P = .0001 GPa
_database_code_amcsd 0004109
7.48388 7.6726 5.76807 90 90 90 Pbnm
atom      x     y     z Biso
Al1       0     0     0  .33
Al2  .14181 .3451   .25  .40
Si   .15318 .3407   .75  .39
OA    .3607 .4075   .75  .35
OB    .3572 .4348   .25  .42
OC    .4762 .0022   .75  .94
OD    .1258 .2228 .5151  .54