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 = 4.144 GPa
_database_code_amcsd 0004111
7.42183 7.5868 5.74298 90 90 90 Pbnm
atom      x     y     z Biso
Al1       0     0     0  .41
Al2   .1411 .3410   .25  .47
Si   .15455 .3377   .75  .44
OA    .3629 .4080   .75  .41
OB    .3556 .4364   .25  .48
OC    .4747 .0051   .75  .97
OD    .1267 .2194 .5154  .59