Sillimanite
      Winter J K, Ghose S
      American Mineralogist 64 (1979) 573-586
      Thermal expansion and high-temperature crystal chemistry of the Al2SiO5 polymorphs
      T = 800 deg C
      _database_code_amcsd 0000726

      CELL PARAMETERS:    7.4998   7.7255   5.7978   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    335.923
      Density (g/cm3):      3.204
      MAX. ABS. INTENSITY / VOLUME**2:      10.63713860    
      RIR:      1.081
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                16.47         17.99        5.3812    1   1   0         4
                19.35          3.20        4.5870    1   0   1         4
                23.02          1.40        3.8628    0   2   0         2
                23.73          7.47        3.7499    2   0   0         2
                25.95         81.64        3.4340    1   2   0         4
                26.42        100.00        3.3735    2   1   0         4
                30.25          1.10        2.9546    1   2   1         8
                30.85         16.92        2.8989    0   0   2         2
                33.30         25.33        2.6906    2   2   0         4
                35.16         47.54        2.5521    1   1   2         8
                36.91         12.46        2.4356    1   3   0         4
                37.82          1.38        2.3785    3   1   0         4
                38.84          1.70        2.3186    0   2   2         4
                39.28          9.26        2.2935    2   0   2         4
                40.73         63.69        2.2151    1   2   2         8
                42.59         13.27        2.1228    2   3   0         4
                43.10          3.15        2.0987    3   2   0         4
                45.50          1.23        1.9934    2   3   1         8
                46.02          1.20        1.9721    2   2   2         8
                48.56          8.18        1.8750    4   0   0         2
                49.58          6.91        1.8388    3   1   2         8
                50.06          1.20        1.8221    4   1   0         4
                50.91          2.84        1.7937    3   3   0         4
                53.36          7.71        1.7170    2   4   0         4
                53.93          6.77        1.7000    3   2   2         8
                54.39         12.46        1.6867    4   2   0         4
                57.32         16.20        1.6073    0   4   2         4
                58.64          8.09        1.5744    4   0   2         4
                58.75          2.39        1.5716    1   4   2         8
                59.97          1.44        1.5426    4   1   2         8
                60.72         36.11        1.5253    3   3   2         8
                63.85          4.04        1.4579    4   2   2         8
                64.26         15.34        1.4495    0   0   4         2
                65.32          3.48        1.4286    2   5   0         4
                66.92          5.46        1.3982    5   2   0         4
                69.93          3.68        1.3453    4   4   0         4
                70.15          9.75        1.3415    1   5   2         8
                70.52          5.74        1.3354    1   2   4         8
                70.74          6.65        1.3317    2   1   4         8
                71.83          1.02        1.3143    3   5   0         4
                71.92          2.40        1.3128    5   1   2         8
                73.56          1.39        1.2876    0   6   0         2
                73.97         12.47        1.2814    2   5   2         8
                74.33          2.83        1.2761    2   2   4         8
                75.49          9.33        1.2594    5   2   2         8
                76.16          3.16        1.2500    6   0   0         2
                76.48          3.38        1.2456    1   3   4         8
                77.05          1.15        1.2377    3   1   4         8
                77.33          1.57        1.2339    6   1   0         4
                78.36          2.33        1.2203    4   4   2         8
                80.19          1.23        1.1970    2   3   4         8
                81.31          2.89        1.1832    5   3   2         8
                84.48          1.68        1.1467    4   0   4         4
                88.22          2.34        1.1076    2   4   4         8
                88.71          1.18        1.1027    4   5   2         8
                89.06          3.70        1.0993    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.