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 = 523 K, P = 1 GPa
      Note: structure was not refined in this study
      _database_code_amcsd 0007702

      CELL PARAMETERS:   10.1280  10.1280  10.1280   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1038.894
      Density (g/cm3):      4.926
      MAX. ABS. INTENSITY / VOLUME**2:      75.29881393    
      RIR:      4.978
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.15         36.33        5.8474    1   1   1         8
                17.51          6.05        5.0640    2   0   0         6
                24.87          5.09        3.5808    2   2   0        12
                29.25         94.87        3.0537    3   1   1        24
                30.58         20.54        2.9237    2   2   2         8
                35.45          7.21        2.5320    4   0   0         6
                38.75          9.39        2.3235    3   3   1        24
                39.80          2.72        2.2647    4   2   0        24
                43.79          2.02        2.0674    4   2   2        24
                46.60         23.59        1.9491    5   1   1        24
                46.60          7.86        1.9491    3   3   3         8
                51.01        100.00        1.7904    4   4   0        12
                53.53          6.55        1.7119    5   3   1        48
                59.89          9.91        1.5445    5   3   3        24
                60.65          5.73        1.5269    6   2   2        24
                63.65          1.57        1.4619    4   4   4         8
                65.86          1.56        1.4182    7   1   1        24
                65.86          1.56        1.4182    5   5   1        24
                71.56         10.42        1.3186    7   3   1        48
                71.56          5.21        1.3186    5   5   3        24
                75.03         12.83        1.2660    8   0   0         6
                82.48          6.46        1.1695    7   5   1        48
                82.48          1.08        1.1695    5   5   5         8
                83.15          2.11        1.1618    6   6   2        24
                85.81          1.51        1.1323    8   4   0        24
                87.81          1.19        1.1117    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.