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 = 448 K, P = 0 GPa
      Note: structure was not refined in this study
      _database_code_amcsd 0007713

      CELL PARAMETERS:   10.0730  10.0730  10.0730   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1022.060
      Density (g/cm3):      5.021
      MAX. ABS. INTENSITY / VOLUME**2:      77.24565490    
      RIR:      5.009
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.24         37.45        5.8156    1   1   1         8
                17.61          5.93        5.0365    2   0   0         6
                25.00          4.97        3.5613    2   2   0        12
                29.41         95.15        3.0371    3   1   1        24
                30.75         20.42        2.9078    2   2   2         8
                35.65          7.66        2.5182    4   0   0         6
                38.97          9.71        2.3109    3   3   1        24
                40.03          2.64        2.2524    4   2   0        24
                44.04          1.96        2.0561    4   2   2        24
                46.87         23.60        1.9385    5   1   1        24
                46.87          7.87        1.9385    3   3   3         8
                51.31        100.00        1.7807    4   4   0        12
                53.84          6.77        1.7026    5   3   1        48
                60.25          9.90        1.5361    5   3   3        24
                61.02          5.69        1.5186    6   2   2        24
                64.04          1.66        1.4539    4   4   4         8
                66.26          1.61        1.4105    5   5   1        24
                66.26          1.61        1.4105    7   1   1        24
                72.01         10.40        1.3114    7   3   1        48
                72.01          5.20        1.3114    5   5   3        24
                75.51         12.83        1.2591    8   0   0         6
                83.03          1.08        1.1631    5   5   5         8
                83.03          6.46        1.1631    7   5   1        48
                83.70          2.10        1.1555    6   6   2        24
                86.40          1.61        1.1262    8   4   0        24
                88.41          1.24        1.1057    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.