Andalusite
Winter J K, Ghose S
American Mineralogist 64 (1979) 573-586
Thermal expansion and high-temperature crystal chemistry of the Al2SiO5 polymorphs
T = 600 deg C
_database_code_amcsd 0000730
7.8556 7.9424 5.5642 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 .2419 0.0069 0.0056 0.0049 0.0021      0      0
Al2  .3718 .1398    .5 0.0027 0.0045 0.0065 -.0002      0      0
Si   .2462 .2541     0 0.0026 0.0039 0.0057 0.0001      0      0
Oa   .4236 .3646     0 0.0035 0.0055 0.0067 -.0012      0      0
Ob   .1031 .4008     0 0.0032 0.0044 0.0215 0.0004      0      0
Oc   .4249 .3630    .5 0.0048 0.0045 0.0070 -.0009      0      0
Od   .2329 .1364 .2392 0.0049 0.0063 0.0072 -.0011 -.0015 0.0014