Kyanite Winter J K, Ghose S American Mineralogist 64 (1979) 573-586 Thermal expansion and high-temperature crystal chemistry of the Al2SiO5 polymorphs T = 400 deg C _database_code_amcsd 0000734 7.1423 7.8724 5.5968 89.94 101.18 105.99 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 .3259 .7041 .4584 0.0028 0.0041 0.0062 0.0011 -.0003 0.0005 Al2 .2976 .6990 .9505 0.0040 0.0030 0.0063 0.0016 -.0002 -.0002 Al3 .1000 .3859 .6403 0.0036 0.0026 0.0081 0.0013 0.0001 0.0005 Al4 .1127 .9181 .1655 0.0037 0.0027 0.0079 0.0016 0.0000 0.0007 Si1 .2961 .0651 .7068 0.0023 0.0023 0.0065 0.0010 -.0002 -.0001 Si2 .2909 .3315 .1892 0.0025 0.0023 0.0060 0.0011 -.0006 -.0002 O1 .1100 .1466 .1292 0.0039 0.0028 0.0094 0.0008 -.0008 0.0001 O2 .1237 .6862 .1819 0.0035 0.0030 0.0068 0.0013 -.0002 0.0003 O3 .2745 .4546 .9557 0.0048 0.0033 0.0080 0.0015 -.0006 0.0010 O4 .2828 .9353 .9345 0.0048 0.0033 0.0086 0.0019 0.0008 0.0016 O5 .1090 .1523 .6673 0.0041 0.0036 0.0088 0.0022 0.0006 0.0008 O6 .1227 .6300 .6388 0.0034 0.0031 0.0067 0.0014 -.0004 -.0002 O7 .2819 .4443 .4281 0.0047 0.0037 0.0084 0.0017 0.0008 .0000 O8 .2915 .9479 .4665 0.0046 0.0040 0.0072 0.0019 -.0005 -.0008 O9 .5004 .2755 .2445 0.0042 0.0043 0.0075 0.0023 -.0001 0.0005 O10 .5014 .2305 .7551 0.0040 0.0034 0.0081 0.0007 0.0004 0.0001