Sillimanite
      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 0000723

      CELL PARAMETERS:    7.4883   7.6808   5.7774   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    332.294
      Density (g/cm3):      3.239
      MAX. ABS. INTENSITY / VOLUME**2:      11.05401800    
      RIR:      1.111
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                16.53         19.05        5.3618    1   1   0         4
                19.41          3.30        4.5742    1   0   1         4
                23.16          1.25        3.8404    0   2   0         2
                23.76          7.27        3.7441    2   0   0         2
                26.08         79.65        3.4172    1   2   0         4
                26.48        100.00        3.3656    2   1   0         4
                30.96         17.39        2.8887    0   0   2         2
                33.42         27.14        2.6809    2   2   0         4
                35.29         49.66        2.5431    1   1   2         8
                37.11         11.49        2.4226    1   3   0         4
                37.90          1.24        2.3739    3   1   0         4
                39.02          1.71        2.3085    0   2   2         4
                39.40          9.35        2.2871    2   0   2         4
                40.91         67.37        2.2061    1   2   2         8
                42.79         14.48        2.1134    2   3   0         4
                43.23          3.03        2.0929    3   2   0         4
                45.71          1.48        1.9848    2   3   1         8
                46.20          1.05        1.9650    2   2   2         8
                48.64          8.65        1.8721    4   0   0         2
                49.71          7.75        1.8340    3   1   2         8
                50.16          1.48        1.8188    4   1   0         4
                51.11          3.01        1.7873    3   3   0         4
                53.64          8.64        1.7086    2   4   0         4
                54.11          7.38        1.6948    3   2   2         8
                54.53         14.12        1.6828    4   2   0         4
                57.64         16.92        1.5991    0   4   2         4
                58.78          8.58        1.5710    4   0   2         4
                59.07          3.04        1.5639    1   4   2         8
                60.12          1.69        1.5391    4   1   2         8
                60.96         41.88        1.5199    3   3   2         8
                64.04          4.40        1.4541    4   2   2         8
                64.52         17.91        1.4444    0   0   4         2
                65.70          3.94        1.4212    2   5   0         4
                67.08          6.18        1.3953    5   2   0         4
                70.22          4.38        1.3404    4   4   0         4
                70.57         12.66        1.3346    1   5   2         8
                70.83          6.58        1.3304    1   2   4         8
                71.02          7.78        1.3273    2   1   4         8
                72.09          3.14        1.3101    5   1   2         8
                72.21          1.18        1.3083    3   5   0         4
                74.06          1.80        1.2801    0   6   0         2
                74.39         14.21        1.2752    2   5   2         8
                74.64          3.72        1.2716    2   2   4         8
                75.70         11.38        1.2564    5   2   2         8
                76.30          3.97        1.2480    6   0   0         2
                76.84          3.60        1.2406    1   3   4         8
                77.33          1.18        1.2339    3   1   4         8
                77.48          1.84        1.2319    6   1   0         4
                78.70          2.85        1.2159    4   4   2         8
                80.55          1.69        1.1925    2   3   4         8
                81.59          3.61        1.1800    5   3   2         8
                84.77          2.03        1.1436    4   0   4         4
                86.67          1.12        1.1234    3   3   4         8
                87.28          1.09        1.1171    2   6   2         8
                88.68          3.19        1.1030    2   4   4         8
                89.16          1.53        1.0983    4   5   2         8
                89.21          1.18        1.0979    6   2   2         8
                89.40          5.08        1.0960    4   2   4         8
                89.70          1.22        1.0931    5   4   2         8
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.