Sillimanite
      Yang H, Hazen R M, Finger L W, Prewitt C T, Downs R T
      Physics and Chemistry of Minerals 25 (1997) 39-47
      Compressibility and crystal structure of sillimanite, Al2SiO5, at high pressure
      Sample: P = 0.00 GPa
      _database_code_amcsd 0008107

      CELL PARAMETERS:    7.4857   7.6750   5.7751   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    331.795
      Density (g/cm3):      3.243
      MAX. ABS. INTENSITY / VOLUME**2:      11.03498187    
      RIR:      1.108
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                16.54         18.71        5.3589    1   1   0         4
                19.41          3.26        4.5725    1   0   1         4
                23.18          1.27        3.8375    0   2   0         2
                23.77          7.16        3.7429    2   0   0         2
                26.09         80.55        3.4149    1   2   0         4
                26.50        100.00        3.3641    2   1   0         4
                30.41          1.04        2.9395    1   2   1         8
                30.97         17.51        2.8876    0   0   2         2
                33.44         27.28        2.6794    2   2   0         4
                35.31         50.01        2.5420    1   1   2         8
                37.14         11.55        2.4209    1   3   0         4
                37.92          1.25        2.3730    3   1   0         4
                39.04          1.69        2.3073    0   2   2         4
                39.41          9.39        2.2862    2   0   2         4
                40.93         67.82        2.2050    1   2   2         8
                42.82         14.29        2.1121    2   3   0         4
                43.25          3.09        2.0919    3   2   0         4
                45.74          1.49        1.9836    2   3   1         8
                46.22          1.11        1.9641    2   2   2         8
                48.65          8.61        1.8714    4   0   0         2
                49.73          7.81        1.8333    3   1   2         8
                50.18          1.48        1.8182    4   1   0         4
                51.14          2.99        1.7863    3   3   0         4
                53.68          8.69        1.7075    2   4   0         4
                54.14          7.38        1.6941    3   2   2         8
                54.56         14.17        1.6821    4   2   0         4
                57.68         17.20        1.5981    0   4   2         4
                58.80          8.70        1.5704    4   0   2         4
                59.11          2.98        1.5629    1   4   2         8
                60.14          1.63        1.5386    4   1   2         8
                60.99         41.89        1.5191    3   3   2         8
                64.07          4.38        1.4534    4   2   2         8
                64.55         17.97        1.4438    0   0   4         2
                65.75          3.94        1.4202    2   5   0         4
                67.11          6.26        1.3948    5   2   0         4
                70.26          4.50        1.3397    4   4   0         4
                70.62         12.57        1.3337    1   5   2         8
                70.86          6.68        1.3298    1   2   4         8
                71.05          7.74        1.3268    2   1   4         8
                72.12          3.15        1.3096    5   1   2         8
                72.26          1.19        1.3074    3   5   0         4
                74.12          1.80        1.2792    0   6   0         2
                74.45         14.20        1.2744    2   5   2         8
                74.68          3.75        1.2710    2   2   4         8
                75.73         11.49        1.2559    5   2   2         8
                76.33          4.05        1.2476    6   0   0         2
                76.88          3.66        1.2400    1   3   4         8
                77.37          1.20        1.2334    3   1   4         8
                77.51          1.83        1.2315    6   1   0         4
                78.74          2.89        1.2153    4   4   2         8
                80.60          1.64        1.1919    2   3   4         8
                81.63          3.63        1.1794    5   3   2         8
                84.81          2.01        1.1431    4   0   4         4
                86.72          1.12        1.1229    3   3   4         8
                87.35          1.10        1.1163    2   6   2         8
                88.74          3.23        1.1025    2   4   4         8
                89.22          1.56        1.0977    4   5   2         8
                89.25          1.16        1.0975    6   2   2         8
                89.45          5.08        1.0956    4   2   4         8
                89.75          1.22        1.0926    5   4   2         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.