Li2 O
      Bijvoet J, Claassen A, Karssen A
      Proceedings of the Koninklijke Nederlandse Academie van Wetenschappen 29 (1926) 1286-1292
      The scattering power of lithium and oxygen, determined from the
      diffraction-intensities of powdered lithiumoxide.
      _cod_database_code 1010064
      _database_code_amcsd 0017000

      CELL PARAMETERS:    4.6100   4.6100   4.6100   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     97.972
      Density (g/cm3):      2.026
      MAX. ABS. INTENSITY / VOLUME**2:      8.899896821    
      RIR:      1.431
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                33.67        100.00        2.6616    1   1   1         8
                39.08          5.84        2.3050    2   0   0         6
                56.46         60.28        1.6299    2   2   0        12
                67.37         17.85        1.3900    3   1   1        24
                83.97          6.14        1.1525    4   0   0         6
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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.