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: Naturalb, Fe/(Fe+Ni) = .491, T = 533 K, P = 0 GPa
      Note: structure was not refined in this study
      _database_code_amcsd 0007725

      CELL PARAMETERS:   10.1090  10.1090  10.1090   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1033.058
      Density (g/cm3):      4.964
      MAX. ABS. INTENSITY / VOLUME**2:      76.36658886    
      RIR:      5.009
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.18         36.36        5.8364    1   1   1         8
                17.55          6.10        5.0545    2   0   0         6
                24.91          5.13        3.5741    2   2   0        12
                29.30         95.36        3.0480    3   1   1        24
                30.64         20.25        2.9182    2   2   2         8
                35.52          7.37        2.5273    4   0   0         6
                38.83          9.40        2.3192    3   3   1        24
                39.88          2.74        2.2604    4   2   0        24
                43.88          2.03        2.0635    4   2   2        24
                46.69         23.72        1.9455    5   1   1        24
                46.69          7.91        1.9455    3   3   3         8
                51.11        100.00        1.7870    4   4   0        12
                53.64          6.55        1.7087    5   3   1        48
                60.01          9.96        1.5416    5   3   3        24
                60.78          5.64        1.5240    6   2   2        24
                63.79          1.60        1.4591    4   4   4         8
                66.00          1.56        1.4155    7   1   1        24
                66.00          1.56        1.4155    5   5   1        24
                71.71          5.24        1.3161    5   5   3        24
                71.71         10.48        1.3161    7   3   1        48
                75.19         12.84        1.2636    8   0   0         6
                82.67          6.50        1.1673    7   5   1        48
                82.67          1.08        1.1673    5   5   5         8
                83.34          2.08        1.1596    6   6   2        24
                86.02          1.54        1.1302    8   4   0        24
                88.02          1.19        1.1096    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.