Lueshite
      Mishchuk D O, V'yunov O I, Ovchar O V, Belous A G
      Inorganic Materials 40 (2004) 1324-1330
      Structural and dielectric properties of solid solutions of
      sodium niobate in lanthanum and neodymium niobates
      Locality: synthetic
      Note: La2/3-x Na3x Nb2O6 synthesized at 1350 deg C
      Note: x = .66, Na2Nb2O6
      _database_code_amcsd 0018679

      CELL PARAMETERS:    5.5007   5.5621  15.5373   90.000   90.000   90.000
      SPACE GROUP: Pbcm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    475.371
      Density (g/cm3):      4.579
      MAX. ABS. INTENSITY / VOLUME**2:      60.72197512    
      RIR:      4.318
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                22.74         93.66        3.9111    1   1   0         4
                22.89         44.02        3.8843    0   0   4         2
                32.19         26.41        2.7810    0   2   0         2
                32.49        100.00        2.7561    1   1   4         8
                32.56         23.93        2.7503    2   0   0         2
                38.42          1.96        2.3429    1   0   6         4
                39.87          2.38        2.2612    0   2   4         4
                40.17          2.98        2.2446    2   0   4         4
                46.43         37.31        1.9556    2   2   0         4
                46.77         18.04        1.9422    0   0   8         2
                46.82          1.27        1.9402    2   2   1         8
                52.05          8.31        1.7569    1   3   0         4
                52.38         14.93        1.7467    2   2   4         8
                52.55          7.63        1.7414    3   1   0         4
                52.61         15.69        1.7395    1   1   8         8
                55.21          1.82        1.6638    1   3   3         8
                57.58         16.42        1.6008    1   3   4         8
                57.91         10.17        1.5923    0   2   8         4
                58.05         18.99        1.5890    3   1   4         8
                58.15          9.87        1.5865    2   0   8         4
                60.54          1.14        1.5294    1   3   5         8
                67.34          3.97        1.3905    0   4   0         2
                68.03         15.87        1.3780    2   2   8         8
                68.19          3.96        1.3752    4   0   0         2
                72.15          1.93        1.3092    0   4   4         4
                72.50          1.86        1.3037    3   3   0         4
                72.55          5.12        1.3029    1   3   8         8
                72.97          4.85        1.2965    3   1   8         8
                72.98          2.88        1.2963    4   0   4         4
                76.81          2.93        1.2409    2   4   0         4
                77.18          5.44        1.2359    3   3   4         8
                77.42          2.69        1.2327    4   2   0         4
                77.69          6.11        1.2292    1   1  12         8
                81.41          1.45        1.1821    2   4   4         8
                82.01          1.91        1.1750    4   2   4         8
                82.31          1.04        1.1715    2   0  12         4
                85.98          3.19        1.1306    0   4   8         4
                86.77          3.07        1.1223    4   0   8         4
                89.99          1.09        1.0903    1   5   0         4
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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.