Magnetite
      Yamanaka T, Shimazu H, Ota K
      Physics and Chemistry of Minerals 28 (2001) 110-118
      Electric conductivity of Fe2SiO4-Fe3O4 spinel solid solutions
      Sample: Fe(3-x)SixO4, x = 0.288, synthesized at 1200 C, 10 GPa
      Locality: synthetic
      _database_code_amcsd 0008504

      CELL PARAMETERS:    8.3740   8.3740   8.3740   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    587.217
      Density (g/cm3):      5.066
      MAX. ABS. INTENSITY / VOLUME**2:      82.32840103    
      RIR:      5.292
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.35         11.02        4.8347    1   1   1         8
                30.19         24.17        2.9607    2   2   0        12
                35.56        100.00        2.5249    3   1   1        24
                37.19          8.78        2.4174    2   2   2         8
                43.21         24.41        2.0935    4   0   0         6
                47.32          1.78        1.9211    3   3   1        24
                53.62          8.05        1.7093    4   2   2        24
                57.16         22.50        1.6116    5   1   1        24
                57.16          6.71        1.6116    3   3   3         8
                62.77         41.47        1.4803    4   4   0        12
                66.00          1.39        1.4155    5   3   1        48
                71.22          2.93        1.3240    6   2   0        24
                74.27          8.34        1.2770    5   3   3        24
                75.28          4.04        1.2624    6   2   2        24
                79.26          3.08        1.2087    4   4   4         8
                87.09          3.09        1.1190    6   4   2        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.