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 0007716

      CELL PARAMETERS:   10.0990  10.0990  10.0990   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1029.995
      Density (g/cm3):      4.982
      MAX. ABS. INTENSITY / VOLUME**2:      76.78848380    
      RIR:      5.018
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.20         36.51        5.8307    1   1   1         8
                17.56          6.09        5.0495    2   0   0         6
                24.94          5.12        3.5705    2   2   0        12
                29.33         95.46        3.0450    3   1   1        24
                30.67         20.19        2.9153    2   2   2         8
                35.56          7.45        2.5247    4   0   0         6
                38.87          9.45        2.3169    3   3   1        24
                39.92          2.73        2.2582    4   2   0        24
                43.92          2.03        2.0614    4   2   2        24
                46.74         23.73        1.9436    5   1   1        24
                46.74          7.91        1.9436    3   3   3         8
                51.17        100.00        1.7853    4   4   0        12
                53.69          6.58        1.7070    5   3   1        48
                60.08          9.97        1.5401    5   3   3        24
                60.84          5.62        1.5225    6   2   2        24
                63.86          1.62        1.4577    4   4   4         8
                66.07          1.57        1.4141    7   1   1        24
                66.07          1.57        1.4141    5   5   1        24
                71.80          5.24        1.3148    5   5   3        24
                71.80         10.49        1.3148    7   3   1        48
                75.28         12.84        1.2624    8   0   0         6
                82.77          1.08        1.1661    5   5   5         8
                82.77          6.50        1.1661    7   5   1        48
                83.44          2.07        1.1584    6   6   2        24
                86.12          1.56        1.1291    8   4   0        24
                88.13          1.20        1.1085    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.