Institute of Experimental Mineralogy
                 Russian Academy of Sciences
     -------------------------------------------------
           142432, Chernogolovka, Moscow district
             A.V. Chichagov  +7(496)52-22320

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MILLERITE

5, beta, t-millerite, at 19.3 GPa, f-troilite, g-troilite

NiS


Hexagonal  R 3m  Z = 9

R =0.0349          NR =245

7 .7 .1905

Ref.Str.:

         H. Sowa, H. Ahshabs, W. Schmitz (2004)

         * Phys. Chem. Minerals, 31, 321-327

Reserv:

         N.A.D.

                   Initial data from BDM-file 

   Lattice parameters (cub. angs.,degr.):

             a =   9.2043   alpha =   90.0 
             b =   9.2043   beta  =   90.0 
             c =   3.0263   gamma =  120.0 

    Unit cell volume (cub. angs.) =   222.04

    Molar volume ( cub.cm/mol.) =    14.86

  Co-ordinates, thermal parameters, occupation for atomic positions:

NoP   x/a     y/b     z/c    B(j)   atom  / occupation

   1 0.9116  0.0884  0.4891   0.0    Ni    = 1.00
   2 0.1133  0.8867  0.0      0.0    S     = 1.00


  Co-ordinates for all atomic positions :

   No       NoP      x/a        y/b       z/c 

     1       1     0.9116     0.0884     0.4891
     2       2     0.1133     0.8867     0.0   
     3       1     0.9116     0.8232     0.4891
     4       1     0.1768     0.0884     0.4891
     5       2     0.1133     0.2266     0.0   
     6       2     0.7734     0.8867     0.0   
     7       1     0.5783     0.1566     0.8224
     8       1     0.5101     0.755      0.1558
     9       2     0.78       0.5599     0.3333
    10       2     0.1067     0.5534     0.6667
    11       1     0.8434     0.4217     0.8224
    12       1     0.2449     0.755      0.1558
    13       1     0.5783     0.4217     0.8224
    14       1     0.2449     0.4899     0.1558
    15       2     0.4401     0.22       0.3333
    16       2     0.4466     0.5534     0.6667
    17       2     0.78       0.22       0.3333
    18       2     0.4466     0.8932     0.6667


X-ray density (g/cm cub.)   =      6.11

MU (1/cm) =     571.833    Mass attenuation coefficient (cm**2/g) =     93.637

 Selected interatomic distances (cation-anion,anion-anion):

 NoP    Atom              Rad.sph.      C.N.    Distance     NoP N.
                           (angs.)               (angs.)

    1    Ni                  3.072        5
                                                 2.2568       2
                                                 2.2122       2
                                                 2.2568       2
                                                 2.2122       2
                                                 2.1513       2
    2    S                   4.368       16
                                                 3.0263       2
                                                 3.0263       2
                                                 4.3527       2
                                                 3.1284       2
                                                 4.3527       2
                                                 4.3527       2
                                                 3.1284       2
                                                 4.3527       2
                                                 3.2015       2
                                                 3.6472       2
                                                 3.6472       2
                                                 3.2015       2
                                                 3.2015       2
                                                 3.6472       2
                                                 3.6471       2
                                                 3.2014       2

  X-ray diffraction powder data (II),  X-Ray W.L. =   1.78892(angs.):

  No   H   K   L   Theta 2*Theta    S       LPG   MF        F          I int.
                    ( degree )                                         *100

    1   1   1   0 11.207  22.414   0.109   50.05    6       59.0     2122.3
    2   1   0   1 18.43   36.86    0.177   17.3     6       93.8     1850.8
    3   3   0   0 19.672  39.344   0.188   14.98    6      143.3     3740.1
    4   2   0  -1 21.784  43.568   0.207   11.92    6      127.4     2353.8
    5   2   2   0 22.875  45.749   0.217   10.68    6       57.6      431.2
    6   2   1   1 24.767  49.533   0.234    8.92   12      100.0     2170.9
    7   3   1  -1 30.069  60.138   0.28     5.74   12      167.7     3932.5
    8   4   1   0 30.945  61.891   0.287    5.39   12      115.4     1747.4
    9   4   0   1 32.508  65.017   0.3      4.84    6      179.5     1897.4
   10   3   2   1 34.854  69.708   0.319    4.18   12       77.9      618.2
   11   3   3   0 35.667  71.334   0.326    3.99    6      161.4     1265.0
   12   1   0  -2 36.99   73.981   0.336    3.72    6      156.0     1102.5
   13   2   0   2 39.219  78.439   0.353    3.36    6       13.6        7.6
   14   5   0  -1 39.357  78.714   0.354    3.34    6       42.1       72.2
   15   2   1  -2 41.414  82.827   0.37     3.09   12       57.7      250.9
   16   4   2  -1 41.549  83.099   0.371    3.08   12       20.1       30.4
   17   6   0   0 42.32   84.64    0.376    3.01    6       90.5      299.9
   18   5   1   1 43.722  87.443   0.386    2.9    12       27.4       53.1
   19   5   2   0 44.488  88.977   0.392    2.86   12       52.8      193.9


  X-ray diffraction powder data (I)...X-Ray wave length =  1.78892 (angs.):

  No   H   K   L   Theta 2*Theta    d           I int   I int.n.  I p.h.n.   H(Si)
                    ( degree )   (angstrem)     *100                         *100

    1   1   1   0  11.207  22.414  4.60215     2122.3     54.0     56.1     5.6
    2   1   0   1  18.43   36.86   2.82926     1850.8     47.1     48.4     5.7
    3   3   0   0  19.672  39.344  2.65705     3740.1     95.1     97.5     5.7
    4   2   0   1  21.784  43.568  2.41022     2353.8     59.9     61.1     5.7
    5   2   2   0  22.875  45.749  2.30107      431.2     11.0     11.2     5.7
    6   2   1   1  24.767  49.533  2.13513     2170.9     55.2     56.0     5.7
    7   3   1   1  30.069  60.138  1.78519     3932.5    100.0    100.0     5.8
    8   4   1   0  30.945  61.891  1.73945     1747.4     44.4     44.3     5.8
    9   4   0   1  32.508  65.017  1.66436     1897.4     48.2     47.9     5.9
   10   3   2   1  34.854  69.708  1.56515      618.2     15.7     15.5     5.9
   11   3   3   0  35.667  71.334  1.53405     1265.0     32.2     31.6     5.9
   12   1   0   2  36.99   73.981  1.4866      1102.5     28.0     27.4     6.0
   13   5   0   1  39.357  78.714  1.41049       72.2      1.8      1.8     6.0
   14   2   1   2  41.414  82.827  1.35219      250.9      6.4      6.1     6.1
   15   6   0   0  42.32   84.64   1.32853      299.9      7.6      7.3     6.1
   16   5   1   1  43.722  87.443  1.29415       53.1      1.4      1.3     6.2
   17   5   2   0  44.488  88.977  1.27641      193.9      4.9      4.6     6.2

Reference:
Chichagov A.V. et al.
Information-Calculating System on Crystal Structure Data of Minerals
(MINCRYST)
- Kristallographiya, v.35, n.3, 1990, p.610-616 (in Russian)