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 = 293 K, P = 0 GPa
      Note: structure was not refined in this study
      _database_code_amcsd 0007699

      CELL PARAMETERS:   10.1390  10.1390  10.1390   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1042.282
      Density (g/cm3):      4.910
      MAX. ABS. INTENSITY / VOLUME**2:      75.11352414    
      RIR:      4.982
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.14         35.94        5.8538    1   1   1         8
                17.49          6.12        5.0695    2   0   0         6
                24.84          5.15        3.5847    2   2   0        12
                29.21         95.01        3.0570    3   1   1        24
                30.54         20.44        2.9269    2   2   2         8
                35.41          7.13        2.5347    4   0   0         6
                38.71          9.28        2.3260    3   3   1        24
                39.76          2.76        2.2671    4   2   0        24
                43.74          2.05        2.0696    4   2   2        24
                46.54         23.65        1.9513    5   1   1        24
                46.54          7.88        1.9513    3   3   3         8
                50.95        100.00        1.7923    4   4   0        12
                53.47          6.47        1.7138    5   3   1        48
                59.81          9.94        1.5462    5   3   3        24
                60.58          5.70        1.5285    6   2   2        24
                63.58          1.55        1.4634    4   4   4         8
                65.78          1.54        1.4197    7   1   1        24
                65.78          1.54        1.4197    5   5   1        24
                71.47         10.46        1.3200    7   3   1        48
                71.47          5.23        1.3200    5   5   3        24
                74.93         12.84        1.2674    8   0   0         6
                82.37          6.48        1.1708    7   5   1        48
                82.37          1.08        1.1708    5   5   5         8
                83.04          2.10        1.1630    6   6   2        24
                85.70          1.49        1.1336    8   4   0        24
                87.69          1.17        1.1129    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.