Fluorite
      Speziale S, Duffy T S
      Physics and Chemistry of Minerals 29 (2002) 465-472
      Single-crystal elastic constants of fluorite (CaF2) to 9.3 GPa
      Sample: P = 8.95 GPa
      _database_code_amcsd 0008655

      CELL PARAMETERS:    5.2695   5.2695   5.2695   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    146.322
      Density (g/cm3):      3.544
      MAX. ABS. INTENSITY / VOLUME**2:      38.79658064    
      RIR:      3.565
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                29.36         95.31        3.0423    1   1   1         8
                48.89        100.00        1.8630    2   2   0        12
                58.05         28.69        1.5888    3   1   1        24
                71.63         10.58        1.3174    4   0   0         6
                79.24          8.69        1.2089    3   3   1        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.