Magnetite
      O'Neill H St C, Dollase W A
      Physics and Chemistry of Minerals 20 (1994) 541-555
      Crystal structures and cation distributions in simple spinels from powder XRD
      structural refinements: MgCr2O4, ZnCr2O4, Fe3O4 and the temperature dependence
      of the cation distribution in ZnAl2O4
      Sample: Fe3O4, preferred values of spinel structure parameters
      Locality: synthetic
      _database_code_amcsd 0007847

      CELL PARAMETERS:    8.3970   8.3970   8.3970   90.000   90.000   90.000
      SPACE GROUP: Fd-3m     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    592.069
      Density (g/cm3):      5.194
      MAX. ABS. INTENSITY / VOLUME**2:      91.55978137    
      RIR:      5.740
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.30          8.14        4.8480    1   1   1         8
                30.10         28.26        2.9688    2   2   0        12
                35.46        100.00        2.5318    3   1   1        24
                37.09          8.18        2.4240    2   2   2         8
                43.09         20.14        2.0993    4   0   0         6
                53.46          9.53        1.7140    4   2   2        24
                56.99         24.88        1.6160    5   1   1        24
                56.99          6.25        1.6160    3   3   3         8
                62.58         41.38        1.4844    4   4   0        12
                70.99          3.47        1.3277    6   2   0        24
                74.03          8.62        1.2805    5   3   3        24
                75.03          3.74        1.2659    6   2   2        24
                79.00          2.59        1.2120    4   4   4         8
                86.79          3.83        1.1221    6   4   2        48
                89.69          8.51        1.0932    7   3   1        48
                89.69          5.39        1.0932    5   5   3        24
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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.