Pentlandite
      Tsukimura K, Nakazawa H, Endo T, Fukunaga O
      Physics and Chemistry of Minerals 19 (1992) 203-212
      Cation distribution in Pentlandites (Fe,Ni)9S8: dependence of pressure and
      temperature and kinetics of the cation exchange reaction
      Sample: Natural, Fe/(Fe+Ni) = .470, T = 423 K, P = 0 GPa
      Note: structure was not refined in this study
      _database_code_amcsd 0007719

      CELL PARAMETERS:   10.0710  10.0710  10.0710   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1021.452
      Density (g/cm3):      5.024
      MAX. ABS. INTENSITY / VOLUME**2:      77.27439912    
      RIR:      5.008
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.24         37.52        5.8145    1   1   1         8
                17.61          5.92        5.0355    2   0   0         6
                25.01          4.96        3.5606    2   2   0        12
                29.41         95.13        3.0365    3   1   1        24
                30.75         20.44        2.9072    2   2   2         8
                35.66          7.68        2.5178    4   0   0         6
                38.98          9.73        2.3104    3   3   1        24
                40.04          2.64        2.2519    4   2   0        24
                44.05          1.95        2.0557    4   2   2        24
                46.88         23.59        1.9382    5   1   1        24
                46.88          7.86        1.9382    3   3   3         8
                51.32        100.00        1.7803    4   4   0        12
                53.86          6.79        1.7023    5   3   1        48
                60.26          9.89        1.5358    5   3   3        24
                61.03          5.70        1.5183    6   2   2        24
                64.06          1.66        1.4536    4   4   4         8
                66.28          1.62        1.4102    7   1   1        24
                66.28          1.62        1.4102    5   5   1        24
                72.03         10.40        1.3111    7   3   1        48
                72.03          5.20        1.3111    5   5   3        24
                75.52         12.83        1.2589    8   0   0         6
                83.05          1.08        1.1629    5   5   5         8
                83.05          6.45        1.1629    7   5   1        48
                83.72          2.11        1.1552    6   6   2        24
                86.42          1.61        1.1260    8   4   0        24
                88.44          1.24        1.1054    7   5   3        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.