Andalusite
Winter J K, Ghose S
American Mineralogist 64 (1979) 573-586
Thermal expansion and high-temperature crystal chemistry of the Al2SiO5 polymorphs
T = 800 deg C
_database_code_amcsd 0000731
7.8759 7.9567 5.5664 90 90 90 Pnnm
atom     x     y    z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Al1      0     0 .242 0.0086 0.0067 0.0059 0.0027      0      0
Al2  .3721 .1401 .500 0.0033 0.0050 0.0079 -.0001      0      0
Si   .2463 .2547    0 0.0033 0.0043 0.0068 0.0001      0      0
Oa   .4231 .3650    0 0.0041 0.0068 0.0077 -.0015      0      0
Ob   .1034 .4009    0 0.0032 0.0047 0.0257 0.0004      0      0
Oc   .4256 .3631 .500 0.0061 0.0050 0.0081 -.0010      0      0
Od   .2335 .1371 .239 0.0060 0.0071 0.0086 -.0012 -.0017 0.0018