Brookite
Meagher E P, Lager G A
The Canadian Mineralogist 17 (1979) 77-85
Polyhedral thermal expansion in the TiO2 polymorphs: Refinement
of the crystal structures of rutile and brookite at high temperature
Sample at 425 degrees C
_database_code_amcsd 0005162
9.191 5.463 5.157 90 90 90 Pbca
atom     x     y     z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Ti   .1289 .0992 .8628  .0036  .0081  .0060 -.0002  .0004  .0001
O1   .0098  .149 .1838  .0034  .0106  .0079 -.0012  .0011 -.0016
O2   .2312 .1116 .5362  .0036  .0119  .0070  .0015  .0010  .0015