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 = .28 GPa, T = 30 K
      _database_code_amcsd 0015297

      CELL PARAMETERS:    3.3130   3.3130   5.3830   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     51.168
      Density (g/cm3):      0.065
      MAX. ABS. INTENSITY / VOLUME**2:     0.5710728369E-01
      RIR:      0.284
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                31.17         29.54        2.8691    1   0   0         6
                33.29         29.62        2.6915    0   0   2         2
                35.45        100.00        2.5319    1   0   1        12
                46.25          8.45        1.9630    1   0   2        12
                55.47          5.68        1.6565    1   1   0         6
                60.89          4.68        1.5213    1   0   3        12
                66.25          3.56        1.4107    1   1   2        12
                67.58          2.34        1.3862    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.