Lueshite
      Vousden P
      Acta Crystallographica 4 (1951) 545-551
      The structure of ferroelectric sodium niobate at room temperature
      Locality: synthetic
      Note: this is a possible polymorph of lueshite
      _database_code_amcsd 0018662

      CELL PARAMETERS:    5.5040   5.5680  15.5200   90.000   90.000   90.000
      SPACE GROUP: P222_1    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    475.630
      Density (g/cm3):      4.577
      MAX. ABS. INTENSITY / VOLUME**2:      61.17263142    
      RIR:      4.352
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                22.72         97.85        3.9143    1   1   0         4
                22.92         48.32        3.8800    0   0   4         2
                32.15         25.45        2.7840    0   2   0         2
                32.49        100.00        2.7556    1   1   4         4
                32.54         24.01        2.7520    2   0   0         2
                39.85          1.48        2.2620    0   2   4         4
                40.17          1.31        2.2447    2   0   4         4
                46.39         42.29        1.9572    2   2   0         4
                46.83         21.25        1.9400    0   0   8         2
                52.00          8.24        1.7587    1   3   0         4
                52.36         16.30        1.7474    2   2   4         4
                52.52          7.49        1.7425    3   1   0         4
                52.66         15.93        1.7382    1   1   8         4
                57.54         16.77        1.6018    1   3   4         4
                57.94          8.17        1.5917    0   2   8         4
                58.02         15.50        1.5896    3   1   4         4
                58.18          7.86        1.5856    2   0   8         4
                67.26          5.25        1.3920    0   4   0         2
                68.05         20.18        1.3778    2   2   8         4
                68.15          4.67        1.3760    4   0   0         2
                72.08          2.84        1.3102    0   4   4         4
                72.43          2.47        1.3048    3   3   0         4
                72.55          5.27        1.3030    1   3   8         4
                72.95          2.43        1.2969    4   0   4         4
                72.98          4.87        1.2964    3   1   8         4
                73.18          1.30        1.2933    0   0  12         2
                76.73          2.85        1.2421    2   4   0         4
                77.12          5.77        1.2367    3   3   4         4
                77.36          2.57        1.2336    4   2   0         4
                77.77          5.99        1.2280    1   1  12         4
                85.94          4.44        1.1310    0   4   8         4
                86.77          4.02        1.1223    4   0   8         4
                89.87          1.42        1.0915    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.