Franklinite
      Levy D, Pavese A, Hanfland M
      Physics and Chemistry of Minerals 27 (2000) 638-644
      Phase transition of synthetic zinc ferrite spinel (ZnFe2O4)
      at high pressure, from synchrotron X-ray powder diffraction
      Sample: P = 24.4 GPa
      _database_code_amcsd 0008489

      CELL PARAMETERS:    8.1758   8.1758   8.1758   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    546.501
      Density (g/cm3):      5.860
      MAX. ABS. INTENSITY / VOLUME**2:      112.1516210    
      RIR:      6.232
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.80          5.87        4.7203    1   1   1         8
                30.94         37.37        2.8906    2   2   0        12
                36.45        100.00        2.4651    3   1   1        24
                38.13          8.09        2.3602    2   2   2         8
                44.32         12.85        2.0440    4   0   0         6
                55.02         11.75        1.6689    4   2   2        24
                58.68          5.09        1.5734    3   3   3         8
                58.68         28.84        1.5734    5   1   1        24
                64.47         36.81        1.4453    4   4   0        12
                73.22          4.03        1.2927    6   2   0        24
                76.39          8.63        1.2468    5   3   3        24
                77.43          3.93        1.2325    6   2   2        24
                81.58          1.33        1.1801    4   4   4         8
                89.76          5.22        1.0925    6   4   2        48
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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.