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: Synthetic, Fe/(Fe+Ni) = .556, T = 723 K, P = 1 GPa
      Note: structure was not refined in this study
      _database_code_amcsd 0007706

      CELL PARAMETERS:   10.1230  10.1230  10.1230   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1037.356
      Density (g/cm3):      4.933
      MAX. ABS. INTENSITY / VOLUME**2:      75.38183099    
      RIR:      4.976
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.16         36.50        5.8445    1   1   1         8
                17.52          6.02        5.0615    2   0   0         6
                24.88          5.06        3.5790    2   2   0        12
                29.26         94.81        3.0522    3   1   1        24
                30.59         20.59        2.9223    2   2   2         8
                35.47          7.25        2.5308    4   0   0         6
                38.77          9.44        2.3224    3   3   1        24
                39.82          2.70        2.2636    4   2   0        24
                43.81          2.00        2.0663    4   2   2        24
                46.62         23.57        1.9482    5   1   1        24
                46.62          7.86        1.9482    3   3   3         8
                51.04        100.00        1.7895    4   4   0        12
                53.56          6.58        1.7111    5   3   1        48
                59.92          9.90        1.5437    5   3   3        24
                60.68          5.75        1.5261    6   2   2        24
                63.69          1.58        1.4611    4   4   4         8
                65.89          1.57        1.4175    7   1   1        24
                65.89          1.57        1.4175    5   5   1        24
                71.60          5.20        1.3179    5   5   3        24
                71.60         10.41        1.3179    7   3   1        48
                75.07         12.83        1.2654    8   0   0         6
                82.53          1.07        1.1689    5   5   5         8
                82.53          6.45        1.1689    7   5   1        48
                83.20          2.12        1.1612    6   6   2        24
                85.87          1.52        1.1318    8   4   0        24
                87.86          1.20        1.1111    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.