Hydrogen
      Vindryevsky B A, Ishmaev S N, Sadikov I P, Chernyshev A A
      Physics Letters 76A (1980) 355-358
      Neutron diffraction studies of solid parahydrogen at pressures up to 5 kbar
      Locality: synthetic
      Sample: P = .48 GPa, T = 16.6 K
      _database_code_amcsd 0015299

      CELL PARAMETERS:    3.2160   3.2160   5.2190   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     46.747
      Density (g/cm3):      0.072
      MAX. ABS. INTENSITY / VOLUME**2:     0.5909437197E-01
      RIR:      0.269
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                32.14         30.01        2.7851    1   0   0         6
                34.37         29.71        2.6095    0   0   2         2
                36.57        100.00        2.4571    1   0   1        12
                47.76          8.14        1.9043    1   0   2        12
                57.30          5.36        1.6080    1   1   0         6
                63.00          4.33        1.4755    1   0   3        12
                68.55          3.28        1.3690    1   1   2        12
                69.91          2.15        1.3455    2   0   1        12
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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.