Sillimanite
      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 0000725

      CELL PARAMETERS:    7.4967   7.7136   5.7921   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    334.937
      Density (g/cm3):      3.213
      MAX. ABS. INTENSITY / VOLUME**2:      10.75149023    
      RIR:      1.090
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                16.49         18.22        5.3760    1   1   0         4
                19.37          3.18        4.5834    1   0   1         4
                23.06          1.38        3.8568    0   2   0         2
                23.74          7.43        3.7483    2   0   0         2
                25.98         81.15        3.4296    1   2   0         4
                26.44        100.00        3.3714    2   1   0         4
                30.29          1.04        2.9510    1   2   1         8
                30.88         17.03        2.8960    0   0   2         2
                33.33         25.70        2.6880    2   2   0         4
                35.20         48.18        2.5496    1   1   2         8
                36.96         12.22        2.4321    1   3   0         4
                37.84          1.35        2.3773    3   1   0         4
                38.89          1.72        2.3158    0   2   2         4
                39.31          9.34        2.2917    2   0   2         4
                40.78         64.66        2.2127    1   2   2         8
                42.64         13.58        2.1203    2   3   0         4
                43.14          3.10        2.0972    3   2   0         4
                45.56          1.28        1.9911    2   3   1         8
                46.07          1.16        1.9702    2   2   2         8
                48.58          8.32        1.8742    4   0   0         2
                49.61          7.13        1.8375    3   1   2         8
                50.09          1.26        1.8212    4   1   0         4
                50.96          2.90        1.7920    3   3   0         4
                53.43          7.98        1.7148    2   4   0         4
                53.98          6.92        1.6986    3   2   2         8
                54.43         12.89        1.6857    4   2   0         4
                57.41         16.45        1.6051    0   4   2         4
                58.68          8.24        1.5734    4   0   2         4
                58.84          2.54        1.5695    1   4   2         8
                60.01          1.52        1.5417    4   1   2         8
                60.78         37.64        1.5239    3   3   2         8
                63.90          4.17        1.4569    4   2   2         8
                64.33         16.04        1.4480    0   0   4         2
                65.42          3.62        1.4266    2   5   0         4
                66.96          5.67        1.3975    5   2   0         4
                70.00          3.86        1.3440    4   4   0         4
                70.26         10.46        1.3397    1   5   2         8
                70.61          5.96        1.3340    1   2   4         8
                70.82          6.97        1.3305    2   1   4         8
                71.93          1.07        1.3127    3   5   0         4
                71.97          2.58        1.3121    5   1   2         8
                73.69          1.49        1.2856    0   6   0         2
                74.08         12.99        1.2798    2   5   2         8
                74.42          3.05        1.2748    2   2   4         8
                75.54          9.88        1.2586    5   2   2         8
                76.20          3.37        1.2494    6   0   0         2
                76.58          3.46        1.2442    1   3   4         8
                77.13          1.17        1.2367    3   1   4         8
                77.37          1.64        1.2334    6   1   0         4
                78.45          2.47        1.2191    4   4   2         8
                80.29          1.34        1.1958    2   3   4         8
                81.39          3.08        1.1824    5   3   2         8
                84.56          1.78        1.1459    4   0   4         4
                88.35          2.55        1.1063    2   4   4         8
                88.83          1.26        1.1016    4   5   2         8
                89.03          1.01        1.0996    6   2   2         8
                89.15          4.05        1.0984    4   2   4         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.