Franklinite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R070137
      Pavese A, Levy D, Hoser A
      American Mineralogist 85 (2000) 1497-1502
      Cation distribution in synthetic zinc ferrite (Zn0.97Fe2.02O4) from
      in situ high temperature neutron powder diffraction
      Sample at T = 300 K

      CELL PARAMETERS:   8.466085   8.466085   8.466085   90.00000   90.00000   90.00000
      ALTERNATE SETTING FOR SPACE GROUP: Fd3m
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                18.17          4.60        4.8879    1   1   1
                29.86         36.06        2.9932    2   2   0
                35.17        100.00        2.5526    3   1   1
                36.78          7.28        2.4439    2   2   2
                42.72         13.29        2.1165    4   0   0
                52.98         12.59        1.7281    4   2   2
                56.47         28.77        1.6293    5   1   1
                56.47          5.68        1.6293    3   3   3
                61.99         39.84        1.4966    4   4   0
                70.30          4.68        1.3386    6   2   0
                73.30          9.20        1.2911    5   3   3
                74.28          3.46        1.2763    6   2   2
                78.19          1.41        1.2220    4   4   4
                85.86          5.79        1.1313    6   4   2
                88.71          6.21        1.1022    5   5   3
                88.71          8.25        1.1022    7   3   1
                88.71          8.25        1.1022    7   3   1
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.