Uraninite
      Wyckoff R W G
      Crystal Structures 1 (1963) 239-444
      Second edition. Interscience Publishers, New York, New York
      Fluorite structure
      _database_code_amcsd 0011728

      CELL PARAMETERS:    5.4682   5.4682   5.4682   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    163.506
      Density (g/cm3):     10.968
      MAX. ABS. INTENSITY / VOLUME**2:      890.4228562    
      RIR:     26.435
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                28.27        100.00        3.1571    1   1   1         8
                32.75         36.19        2.7341    2   0   0         6
                47.00         44.24        1.9333    2   2   0        12
                55.76         38.97        1.6487    3   1   1        24
                58.47          8.52        1.5785    2   2   2         8
                68.66          5.84        1.3671    4   0   0         6
                75.84         13.47        1.2545    3   3   1        24
                78.17          9.77        1.2227    4   2   0        24
                87.37         10.59        1.1162    4   2   2        24
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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.