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 = 473 K, P = 0 GPa
      Note: structure was not refined in this study
      _database_code_amcsd 0007709

      CELL PARAMETERS:   10.0800  10.0800  10.0800   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1024.193
      Density (g/cm3):      5.010
      MAX. ABS. INTENSITY / VOLUME**2:      77.11233707    
      RIR:      5.011
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.22         37.19        5.8197    1   1   1         8
                17.60          5.98        5.0400    2   0   0         6
                24.99          5.02        3.5638    2   2   0        12
                29.39         95.24        3.0392    3   1   1        24
                30.73         20.36        2.9098    2   2   2         8
                35.63          7.60        2.5200    4   0   0         6
                38.95          9.64        2.3125    3   3   1        24
                40.00          2.67        2.2540    4   2   0        24
                44.01          1.98        2.0576    4   2   2        24
                46.83         23.64        1.9399    5   1   1        24
                46.83          7.88        1.9399    3   3   3         8
                51.27        100.00        1.7819    4   4   0        12
                53.80          6.72        1.7038    5   3   1        48
                60.20          9.91        1.5372    5   3   3        24
                60.97          5.67        1.5196    6   2   2        24
                63.99          1.65        1.4549    4   4   4         8
                66.21          1.60        1.4115    7   1   1        24
                66.21          1.60        1.4115    5   5   1        24
                71.95         10.43        1.3123    7   3   1        48
                71.95          5.21        1.3123    5   5   3        24
                75.45         12.83        1.2600    8   0   0         6
                82.96          6.47        1.1639    7   5   1        48
                82.96          1.08        1.1639    5   5   5         8
                83.63          2.10        1.1563    6   6   2        24
                86.32          1.59        1.1270    8   4   0        24
                88.34          1.23        1.1064    7   5   3        48
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.