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 = 19.7 GPa
      _database_code_amcsd 0008487

      CELL PARAMETERS:    8.2151   8.2151   8.2151   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    554.420
      Density (g/cm3):      5.776
      MAX. ABS. INTENSITY / VOLUME**2:      113.2204955    
      RIR:      6.383
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.71          3.57        4.7430    1   1   1         8
                30.78         35.21        2.9045    2   2   0        12
                36.27        100.00        2.4769    3   1   1        24
                37.94          7.39        2.3715    2   2   2         8
                44.09         13.16        2.0538    4   0   0         6
                54.74         11.82        1.6769    4   2   2        24
                58.37          5.92        1.5810    3   3   3         8
                58.37         25.50        1.5810    5   1   1        24
                64.13         37.30        1.4522    4   4   0        12
                72.81          4.26        1.2989    6   2   0        24
                75.96          8.46        1.2528    5   3   3        24
                76.99          3.38        1.2385    6   2   2        24
                81.11          1.46        1.1857    4   4   4         8
                89.22          4.81        1.0978    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.