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 0007717

      CELL PARAMETERS:   10.0460  10.0460  10.0460   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1013.863
      Density (g/cm3):      5.062
      MAX. ABS. INTENSITY / VOLUME**2:      77.71575197    
      RIR:      4.999
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.28         38.43        5.8001    1   1   1         8
                17.66          5.77        5.0230    2   0   0         6
                25.07          4.82        3.5518    2   2   0        12
                29.49         94.83        3.0290    3   1   1        24
                30.83         20.67        2.9000    2   2   2         8
                35.75          7.88        2.5115    4   0   0         6
                39.08          9.99        2.3047    3   3   1        24
                40.14          2.55        2.2464    4   2   0        24
                44.17          1.89        2.0506    4   2   2        24
                47.00         23.46        1.9334    5   1   1        24
                47.00          7.82        1.9334    3   3   3         8
                51.46        100.00        1.7759    4   4   0        12
                54.00          6.97        1.6981    5   3   1        48
                60.43          9.82        1.5320    5   3   3        24
                61.20          5.77        1.5145    6   2   2        24
                64.24          1.70        1.4500    4   4   4         8
                66.46          1.66        1.4067    5   5   1        24
                66.46          1.66        1.4067    7   1   1        24
                72.23         10.32        1.3079    7   3   1        48
                72.23          5.16        1.3079    5   5   3        24
                75.75         12.82        1.2557    8   0   0         6
                83.30          1.07        1.1600    5   5   5         8
                83.30          6.41        1.1600    7   5   1        48
                83.98          2.14        1.1524    6   6   2        24
                86.69          1.65        1.1232    8   4   0        24
                88.71          1.28        1.1027    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.