Kyanite Winter J K, Ghose S American Mineralogist 64 (1979) 573-586 Thermal expansion and high-temperature crystal chemistry of the Al2SiO5 polymorphs T = 25 deg C _database_code_amcsd 0000733 7.1262 7.8520 5.5724 89.99 101.11 106.03 P-1 atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Al1 .3254 .7040 .4582 0.0013 0.0020 0.0043 0.0007 -.0005 0.0001 Al2 .2974 .6989 .9505 0.0019 0.0016 0.0045 0.0009 -.0005 -.0003 Al3 .0998 .3862 .6403 0.0017 0.0015 0.0050 0.0008 -.0004 0.0000 Al4 .1120 .9175 .1649 0.0018 0.0015 0.0050 0.0008 -.0004 0.0002 Si1 .2962 .0649 .7066 0.0012 0.0013 0.0044 0.0007 -.0004 0.0000 Si2 .2910 .3317 .1892 0.0011 0.0014 0.0040 0.0007 -.0007 -.0001 O1 .1095 .1468 .1288 0.0022 0.0017 0.0060 0.0007 -.0007 -.0002 O2 .1230 .6856 .1812 0.0018 0.0018 0.0044 0.0006 -.0006 0.0001 O3 .2747 .4545 .9547 0.0024 0.0020 0.0051 0.0008 -.0005 0.0001 O4 .2831 .9354 .9353 0.0026 0.0017 0.0054 0.0010 0.0001 0.0005 O5 .1084 .1520 .6669 0.0025 0.0019 0.0051 0.0011 0.0000 0.0006 O6 .1219 .6307 .6389 0.0019 0.0019 0.0048 0.0007 -.0009 -.0005 O7 .2822 .4453 .4288 0.0027 0.0019 0.0054 0.0009 -.0002 -.0002 O8 .2915 .9467 .4659 0.0026 0.0023 0.0047 0.0013 -.0003 -.0002 O9 .5008 .2749 .2440 0.0023 0.0022 0.0051 0.0013 -.0005 0.0001 O10 .5015 .2312 .7553 0.0020 0.0020 0.0055 0.0006 -.0004 -.0002