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 = 490 C
      _database_code_amcsd 0007445

      CELL PARAMETERS:    4.4380   9.4290   5.4920   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    229.818
      Density (g/cm3):      3.669
      MAX. ABS. INTENSITY / VOLUME**2:      7.214132959    
      RIR:      0.640
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.82          4.89        4.7145    0   2   0         2
                22.14         50.46        4.0155    1   1   0         4
                24.89          1.70        3.5772    0   2   1         4
                25.81          2.77        3.4518    1   0   1         4
                27.52         97.25        3.2415    1   1   1         8
                27.60          1.94        3.2315    1   2   0         4
                32.14          1.98        2.7851    1   2   1         8
                32.61          1.08        2.7460    0   0   2         2
                34.98         59.62        2.5649    1   3   0         4
                37.92          9.73        2.3728    0   2   2         4
                38.18          2.90        2.3572    0   4   0         2
                38.75         34.75        2.3240    1   3   1         8
                39.77         51.83        2.2667    1   1   2         8
                41.70          3.73        2.1661    0   4   1         4
                41.82          2.11        2.1600    2   1   0         4
                43.24         97.84        2.0925    1   2   2         8
                43.47         49.91        2.0818    1   4   0         4
                45.10          3.91        2.0101    2   1   1         8
                48.26          1.67        1.8857    2   2   1         8
                48.57          7.45        1.8744    1   3   2         8
                52.74          1.13        1.7356    1   5   0         4
                55.14         12.70        1.6657    1   1   3         8
                55.53          7.64        1.6549    1   5   1         8
                56.80        100.00        1.6207    2   2   2         8
                57.00         42.39        1.6157    2   4   0         4
                57.89          1.19        1.5928    1   2   3         8
                59.65          8.16        1.5500    2   4   1         8
                61.36          7.59        1.5109    0   6   1         4
                62.31          8.25        1.4901    1   3   3         8
                63.40         20.47        1.4671    1   5   2         8
                63.67          1.77        1.4615    3   1   0         4
                64.44          2.70        1.4459    0   4   3         4
                66.17          4.32        1.4123    3   1   1         8
                67.23          1.49        1.3926    2   4   2         8
                67.36          1.19        1.3902    2   5   1         8
                68.32         26.10        1.3730    0   0   4         2
                68.83         40.22        1.3639    0   6   2         4
                70.33          5.56        1.3385    3   3   0         4
                72.72          9.55        1.3004    3   3   1         8
                72.80          2.87        1.2992    1   1   4         8
                73.39         11.04        1.2901    3   1   2         8
                73.47          9.29        1.2889    1   7   0         4
                75.48          2.65        1.2595    1   5   3         8
                75.77         11.89        1.2553    3   2   2         8
                75.94          5.11        1.2530    3   4   0         4
                79.05          1.47        1.2114    2   4   3         8
                79.12          8.96        1.2105    1   3   4         8
                80.56          2.71        1.1924    0   6   3         4
                81.05          1.57        1.1864    0   4   4         4
                84.54          5.87        1.1462    1   4   4         8
                84.90          1.91        1.1421    3   1   3         8
                85.18          2.28        1.1391    1   8   0         4
                85.23          1.15        1.1386    3   5   1         8
                88.03          9.04        1.1095    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.