Na O3.5 U
      Gasperin M
      Journal of the Less-Common Metals 119 (1986) 83-90
      Na2U2O7: Synthese et structure d'un monocristal
      _cod_database_code 1001364
      _database_code_amcsd 0014158

      CELL PARAMETERS:    3.9110   3.9110  17.8570   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    236.546
      Density (g/cm3):      6.671
      MAX. ABS. INTENSITY / VOLUME**2:      275.1272268    
      RIR:     13.430
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.88        100.00        5.9523    0   0   3         2
                26.79         55.17        3.3277    1   0   1         6
                28.18         73.36        3.1668    0   1   2         6
                30.03         23.62        2.9762    0   0   6         2
                33.20         30.25        2.6983    1   0   4         6
                36.56         17.38        2.4576    0   1   5         6
                44.46          8.68        2.0377    1   0   7         6
                45.73          5.60        1.9841    0   0   9         2
                46.44         22.31        1.9555    1   1   0         6
                48.87         16.72        1.8638    0   1   8         6
                49.03         18.28        1.8578    1   1   3        12
                54.42          5.60        1.6859    0   2   1         6
                55.21          8.04        1.6638    2   0   2         6
                56.29         15.75        1.6343    1   1   6        12
                58.27          4.62        1.5834    0   2   4         6
                58.42          6.97        1.5796    1   0  10         6
                60.50          2.85        1.5302    2   0   5         6
                62.40          2.05        1.4881    0   0  12         2
                63.55          4.54        1.4639    0   1  11         6
                66.24          1.95        1.4109    0   2   7         6
                67.22          6.82        1.3928    1   1   9        12
                69.70          3.88        1.3492    2   0   8         6
                74.28          2.96        1.2769    2   1   1        12
                74.55          1.27        1.2729    1   0  13         6
                74.94          4.25        1.2672    1   2   2        12
                77.58          2.80        1.2306    2   1   4        12
                77.71          2.14        1.2288    0   2  10         6
                79.54          1.62        1.2051    1   2   5        12
                80.46          2.18        1.1937    0   1  14         6
                81.23          3.94        1.1842    1   1  12        12
                82.27          1.48        1.1719    2   0  11         6
                84.72          1.44        1.1442    2   1   7        12
                86.13          1.55        1.1290    3   0   0         6
                87.93          2.73        1.1105    1   2   8        12
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.