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 = 5.750 GPa
_database_code_amcsd 0004112
7.39939 7.5576 5.73421 90 90 90 Pbnm
atom      x     y     z Biso
Al1       0     0     0  .28
Al2  .14001 .3378   .25  .31
Si   .15466 .3363   .75  .28
OA    .3639 .4142   .75  .41
OB    .3545 .4452   .25  .42
OC    .4738 .0047   .75  .85
OD    .1275 .2162 .5154  .47