Li3 Nb O4
      Grenier J, Martin C, Durif A
      Bulletin de la Societe Francaise de Mineralogie et de Cristallographie 87 (1964) 316-320
      Etude cristallographique des orthoniobates et orthotantalates de lithium
      _cod_database_code 1007081
      _database_code_amcsd 0012117

      CELL PARAMETERS:    8.4290   8.4290   8.4290   90.000   90.000   90.000
      SPACE GROUP: I23       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    598.864
      Density (g/cm3):      3.942
      MAX. ABS. INTENSITY / VOLUME**2:      70.02325847    
      RIR:      5.784
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.86         94.81        5.9602    1   1   0        12
                21.08          4.47        4.2145    2   0   0         6
                25.89        100.00        3.4411    2   1   1        12
                33.62         13.74        2.6655    3   0   1        12
                33.62         18.05        2.6655    3   1   0        12
                36.94          6.93        2.4332    2   2   2         4
                40.02          6.67        2.2527    3   2   1        12
                40.02          9.75        2.2527    3   1   2        12
                42.92         45.27        2.1072    4   0   0         6
                45.66          8.90        1.9867    4   1   1        12
                45.66         10.67        1.9867    3   3   0        12
                50.81          1.22        1.7971    3   3   2        12
                53.24          3.58        1.7206    4   2   2        12
                55.60          6.39        1.6531    4   3   1        12
                55.60          4.97        1.6531    4   1   3        12
                55.60          1.33        1.6531    5   0   1        12
                60.13         13.25        1.5389    5   2   1        12
                60.13         11.37        1.5389    5   1   2        12
                62.31         20.20        1.4901    4   4   0        12
                64.46          5.75        1.4456    4   3   3        12
                66.56          1.07        1.4048    6   0   0         6
                68.64          2.14        1.3674    5   3   2        12
                68.64          4.39        1.3674    6   1   1        12
                68.64          3.20        1.3674    5   2   3        12
                72.70          1.37        1.3006    5   4   1        12
                72.70          1.04        1.3006    5   1   4        12
                74.70          3.13        1.2707    6   2   2        12
                76.68          1.95        1.2428    6   3   1        12
                76.68          1.54        1.2428    6   1   3        12
                78.64          4.97        1.2166    4   4   4         4
                80.59          1.33        1.1920    7   1   0        12
                84.46          1.48        1.1470    6   3   3        12
                84.46          6.13        1.1470    5   5   2        12
                88.30          1.82        1.1068    7   3   0        12
                88.30          1.57        1.1068    7   0   3        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.