Franklinite
      Lucchesi S, Russo U, Della Giusta A
      European Journal of Mineralogy 11 (1999) 501-511
      Cation distribution in natural Zn-spinels: franklinite
      Sample: FRK3
      _database_code_amcsd 0006781

      CELL PARAMETERS:    8.4641   8.4641   8.4641   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    606.376
      Density (g/cm3):      5.142
      MAX. ABS. INTENSITY / VOLUME**2:      91.06620185    
      RIR:      5.767
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.15          8.68        4.8868    1   1   1         8
                29.86         33.01        2.9925    2   2   0        12
                35.17        100.00        2.5520    3   1   1        24
                36.78          8.07        2.4434    2   2   2         8
                42.73         17.08        2.1160    4   0   0         6
                53.00         10.59        1.7277    4   2   2        24
                56.49         29.07        1.6289    5   1   1        24
                56.49          5.23        1.6289    3   3   3         8
                62.03         40.15        1.4963    4   4   0        12
                70.35          3.66        1.3383    6   2   0        24
                73.35          8.71        1.2908    5   3   3        24
                74.34          3.91        1.2760    6   2   2        24
                78.25          1.97        1.2217    4   4   4         8
                85.94          4.54        1.1311    6   4   2        48
                88.79          7.24        1.1019    7   3   1        48
                88.79          5.85        1.1019    5   5   3        24
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.