Franklinite
      Lucchesi S, Russo U, Della Giusta A
      European Journal of Mineralogy 9 (1997) 31-42
      Crystal chemistry and cation distribution in some
      Mn-rich natural and synthetic spinels
      Sample: FRK1b
      _database_code_amcsd 0006641

      CELL PARAMETERS:    8.4576   8.4576   8.4576   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    604.980
      Density (g/cm3):      5.089
      MAX. ABS. INTENSITY / VOLUME**2:      86.92440290    
      RIR:      5.562
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.17          9.40        4.8830    1   1   1         8
                29.88         32.54        2.9902    2   2   0        12
                35.19        100.00        2.5501    3   1   1        24
                36.81          7.93        2.4415    2   2   2         8
                42.77         18.07        2.1144    4   0   0         6
                53.04         10.20        1.7264    4   2   2        24
                56.54         28.99        1.6277    5   1   1        24
                56.54          5.13        1.6277    3   3   3         8
                62.08         40.34        1.4951    4   4   0        12
                70.41          3.47        1.3373    6   2   0        24
                73.41          8.58        1.2898    5   3   3        24
                74.40          3.90        1.2750    6   2   2        24
                78.32          2.12        1.2207    4   4   4         8
                86.02          4.31        1.1302    6   4   2        48
                88.88          5.79        1.1011    5   5   3        24
                88.88          7.06        1.1011    7   3   1        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.