Franklinite
      Lucchesi S, Russo U, Della Giusta A
      European Journal of Mineralogy 11 (1999) 501-511
      Cation distribution in natural Zn-spinels: franklinite
      Sample: FRK2
      _database_code_amcsd 0006780

      CELL PARAMETERS:    8.4654   8.4654   8.4654   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    606.656
      Density (g/cm3):      5.144
      MAX. ABS. INTENSITY / VOLUME**2:      90.47960479    
      RIR:      5.727
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.15          9.17        4.8875    1   1   1         8
                29.85         32.58        2.9930    2   2   0        12
                35.16        100.00        2.5524    3   1   1        24
                36.78          8.22        2.4438    2   2   2         8
                42.73         17.42        2.1163    4   0   0         6
                52.99         10.35        1.7280    4   2   2        24
                56.48         28.76        1.6292    5   1   1        24
                56.48          5.19        1.6292    3   3   3         8
                62.02         39.81        1.4965    4   4   0        12
                70.33          3.54        1.3385    6   2   0        24
                73.33          8.54        1.2910    5   3   3        24
                74.32          3.87        1.2762    6   2   2        24
                78.24          1.99        1.2219    4   4   4         8
                85.92          4.35        1.1312    6   4   2        48
                88.77          7.03        1.1021    7   3   1        48
                88.77          5.69        1.1021    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.