Fluorite
      Wyckoff R W G
      Crystal Structures 1 (1963) 239-444
      Second edition. Interscience Publishers, New York, New York
      Fluorite structure
      _database_code_amcsd 0011683

      CELL PARAMETERS:    5.4630   5.4630   5.4630   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    163.035
      Density (g/cm3):      3.180
      MAX. ABS. INTENSITY / VOLUME**2:      36.12953490    
      RIR:      3.699
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                28.30         91.60        3.1540    1   1   1         8
                47.05        100.00        1.9314    2   2   0        12
                55.81         28.89        1.6471    3   1   1        24
                68.73         10.85        1.3657    4   0   0         6
                75.92          8.76        1.2533    3   3   1        24
                87.47         17.34        1.1151    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.