Beryllium
      Ming L C, Manghnani M H
      Journal of Physics F: Metal Physics 14 (1984) 1-8
      Isothermal compression and phase transition in beryllium to 28.3 GPa
      Locality: synthetic
      Sample: at P = 25.5 GPa
      Note: BeII phase, slightly distorded HCP
      _database_code_amcsd 0013189

      CELL PARAMETERS:    4.3571   4.3571   3.4020   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     55.932
      Density (g/cm3):      0.535
      MAX. ABS. INTENSITY / VOLUME**2:     0.8913778286    
      RIR:      0.542
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.58         67.04        3.7734    1   0   0         6
                35.53        100.00        2.5267    1   0   1        12
                41.45         39.56        2.1786    1   1   0         6
                48.24          6.02        1.8867    2   0   0         6
                53.90          5.64        1.7010    0   0   2         2
                55.71         22.87        1.6499    2   0   1        12
                59.62          6.18        1.5507    1   0   2        12
                65.44          4.65        1.4262    2   1   0        12
                70.20         15.11        1.3407    1   1   2        12
                71.76         21.26        1.3153    2   1   1        24
                75.21          3.10        1.2633    2   0   2        12
                75.60          6.12        1.2578    3   0   0         6
                89.72          4.05        1.0929    2   1   2        24
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.