Chrysoberyl
      Hazen R M, Finger L W
      Physics and Chemistry of Minerals 14 (1987) 426-434
      High-temperature crystal chemistry of phenakite (Be2SiO4) and
      Chrysoberyl (BeAl2O4)
      Sample: T = 690 C
      _database_code_amcsd 0007446

      CELL PARAMETERS:    4.4457   9.4491   5.5011   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    231.089
      Density (g/cm3):      3.649
      MAX. ABS. INTENSITY / VOLUME**2:      6.880652902    
      RIR:      0.614
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.78          5.16        4.7245    0   2   0         2
                22.10         52.04        4.0227    1   1   0         4
                24.84          1.62        3.5841    0   2   1         4
                25.77          2.82        3.4577    1   0   1         4
                27.47        100.00        3.2471    1   1   1         8
                27.55          1.97        3.2377    1   2   0         4
                32.08          1.97        2.7903    1   2   1         8
                32.55          1.12        2.7506    0   0   2         2
                34.91         61.90        2.5701    1   3   0         4
                37.85          9.93        2.3771    0   2   2         4
                38.09          2.84        2.3623    0   4   0         2
                38.67         35.36        2.3285    1   3   1         8
                39.70         52.73        2.2705    1   1   2         8
                41.61          3.98        2.1706    0   4   1         4
                41.74          2.19        2.1638    2   1   0         4
                43.16         99.78        2.0962    1   2   2         8
                43.38         50.74        2.0861    1   4   0         4
                45.02          3.94        2.0136    2   1   1         8
                48.17          1.71        1.8890    2   2   1         8
                48.48          7.40        1.8779    1   3   2         8
                52.62          1.08        1.7392    1   5   0         4
                55.04         12.69        1.6685    1   1   3         8
                55.41          7.50        1.6583    1   5   1         8
                56.70         99.73        1.6236    2   2   2         8
                56.88         42.30        1.6188    2   4   0         4
                57.78          1.14        1.5956    1   2   3         8
                59.53          8.21        1.5530    2   4   1         8
                61.22          7.61        1.5140    0   6   1         4
                62.19          8.15        1.4927    1   3   3         8
                63.26         20.49        1.4700    1   5   2         8
                63.55          1.71        1.4640    3   1   0         4
                64.31          2.72        1.4485    0   4   3         4
                66.04          4.25        1.4148    3   1   1         8
                67.09          1.49        1.3951    2   4   2         8
                67.21          1.17        1.3929    2   5   1         8
                68.19         25.68        1.3753    0   0   4         2
                68.68         39.40        1.3667    0   6   2         4
                70.19          5.45        1.3409    3   3   0         4
                72.56          9.31        1.3028    3   3   1         8
                72.66          2.79        1.3013    1   1   4         8
                73.24         10.95        1.2923    3   1   2         8
                73.29          9.10        1.2916    1   7   0         4
                75.31          2.52        1.2619    1   5   3         8
                75.62         11.56        1.2575    3   2   2         8
                75.77          4.96        1.2553    3   4   0         4
                76.06          1.01        1.2513    2   6   1         8
                78.88          1.46        1.2136    2   4   3         8
                78.95          8.75        1.2126    1   3   4         8
                80.37          2.64        1.1947    0   6   3         4
                80.88          1.47        1.1885    0   4   4         4
                84.35          5.62        1.1482    1   4   4         8
                84.73          1.81        1.1441    3   1   3         8
                84.96          2.21        1.1415    1   8   0         4
                85.03          1.08        1.1408    3   5   1         8
                87.84          8.59        1.1114    4   0   0         2
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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.