U4O9
      Lauriat J P, Chevrier G, Boucherle J X
      Journal of Solid State Chemistry 80 (1989) 80-93
      Space group of U4O9 in the beta phase
      Sample: F-43m refinement
      _database_code_amcsd 0013652

      CELL PARAMETERS:    5.4400   5.4400   5.4400   90.000   90.000   90.000
      SPACE GROUP: F-43m     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    160.989
      Density (g/cm3):     11.355
      MAX. ABS. INTENSITY / VOLUME**2:      880.5624028    
      RIR:     25.252
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                28.42        100.00        3.1408    1   1   1         4
                32.93         44.44        2.7200    2   0   0         6
                47.26         46.61        1.9233    2   2   0        12
                56.07         45.43        1.6402    3   1   1        12
                58.80         10.88        1.5704    2   2   2         4
                69.06          6.52        1.3600    4   0   0         6
                76.30         17.16        1.2480    3   3   1        12
                78.66         13.37        1.2164    4   2   0        24
                87.93         13.15        1.1104    4   2   2        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.