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 = 2 GPa
      Note: structure was not refined in this study
      _database_code_amcsd 0007703

      CELL PARAMETERS:   10.1070  10.1070  10.1070   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1032.445
      Density (g/cm3):      4.956
      MAX. ABS. INTENSITY / VOLUME**2:      75.66387772    
      RIR:      4.971
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.18         37.08        5.8353    1   1   1         8
                17.55          5.93        5.0535    2   0   0         6
                24.92          4.97        3.5734    2   2   0        12
                29.31         94.62        3.0474    3   1   1        24
                30.64         20.73        2.9176    2   2   2         8
                35.53          7.38        2.5268    4   0   0         6
                38.84          9.61        2.3187    3   3   1        24
                39.89          2.64        2.2600    4   2   0        24
                43.88          1.96        2.0631    4   2   2        24
                46.70         23.48        1.9451    5   1   1        24
                46.70          7.83        1.9451    3   3   3         8
                51.12        100.00        1.7867    4   4   0        12
                53.65          6.70        1.7084    5   3   1        48
                60.02          9.85        1.5413    5   3   3        24
                60.79          5.79        1.5237    6   2   2        24
                63.80          1.60        1.4588    4   4   4         8
                66.01          1.59        1.4153    7   1   1        24
                66.01          1.59        1.4153    5   5   1        24
                71.73          5.18        1.3158    5   5   3        24
                71.73         10.36        1.3158    7   3   1        48
                75.21         12.83        1.2634    8   0   0         6
                82.69          6.42        1.1671    7   5   1        48
                82.69          1.07        1.1671    5   5   5         8
                83.36          2.14        1.1594    6   6   2        24
                86.04          1.54        1.1300    8   4   0        24
                88.04          1.22        1.1094    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.