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

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MILLERITE

6, beta, t-millerite, at 26.8 GPa, f-troilite, g-troilite

NiS


Hexagonal  R 3m  Z = 9

R =0.035          NR =239

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 =   9.097    alpha =   90.0 
             b =   9.097    beta  =   90.0 
             c =   2.9934   gamma =  120.0 

    Unit cell volume (cub. angs.) =   214.53

    Molar volume ( cub.cm/mol.) =    14.36

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

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

   1 0.9115  0.0885  0.4918   0.0    Ni    = 1.00
   2 0.1137  0.8863  0.0      0.0    S     = 1.00


  Co-ordinates for all atomic positions :

   No       NoP      x/a        y/b       z/c 

     1       1     0.9115     0.0885     0.4918
     2       2     0.1137     0.8863     0.0   
     3       1     0.9115     0.8231     0.4918
     4       1     0.177      0.0885     0.4918
     5       2     0.1137     0.2274     0.0   
     6       2     0.7726     0.8863     0.0   
     7       1     0.5782     0.1564     0.8251
     8       1     0.5103     0.7551     0.1585
     9       2     0.7804     0.5607     0.3333
    10       2     0.1059     0.553      0.6667
    11       1     0.8436     0.4218     0.8251
    12       1     0.2449     0.7551     0.1585
    13       1     0.5782     0.4218     0.8251
    14       1     0.2448     0.4897     0.1585
    15       2     0.4393     0.2196     0.3333
    16       2     0.447      0.553      0.6667
    17       2     0.7804     0.2196     0.3333
    18       2     0.447      0.894      0.6667


X-ray density (g/cm cub.)   =      6.32

MU (1/cm) =     591.836    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
                                                 2.2292       2
                                                 2.196        2
                                                 2.2292       2
                                                 2.196        2
                                                 2.1205       2
    2    S                   4.368       16
                                                 2.9934       2
                                                 2.9934       2
                                                 4.3114       2
                                                 3.1029       2
                                                 4.3114       2
                                                 4.3114       2
                                                 3.1029       2
                                                 4.3114       2
                                                 3.1594       2
                                                 3.6012       2
                                                 3.6012       2
                                                 3.1594       2
                                                 3.1594       2
                                                 3.6012       2
                                                 3.6011       2
                                                 3.1593       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 11.341  22.682   0.11    48.83    6       58.1     2151.2
    2   1   0   1 18.642  37.284   0.179   16.87    6       93.3     1913.0
    3   3   0   0 19.914  39.828   0.19    14.57    6      143.0     3883.9
    4   2   0  -1 22.043  44.086   0.21    11.61    6      127.3     2453.4
    5   2   2   0 23.16   46.32    0.22    10.39    6       56.4      430.8
    6   2   1   1 25.068  50.137   0.237    8.68   12      100.4     2280.8
    7   3   1  -1 30.452  60.904   0.283    5.58   12      166.1     4015.7
    8   4   1   0 31.351  62.703   0.291    5.24   12      115.2     1811.1
    9   4   0   1 32.931  65.862   0.304    4.71    6      178.1     1945.7
   10   3   2   1 35.317  70.635   0.323    4.07   12       77.1      630.3
   11   3   3   0 36.153  72.307   0.33     3.89    6      160.7     1308.7
   12   1   0  -2 37.467  74.935   0.34     3.63    6      154.6     1132.4
   13   2   0   2 39.74   79.48    0.357    3.29    6       12.3        6.5
   14   5   0  -1 39.905  79.81    0.359    3.27    6       40.3       69.3
   15   2   1  -2 41.98   83.959   0.374    3.04   12       58.8      273.8
   16   4   2  -1 42.143  84.286   0.375    3.03   12       20.5       33.2
   17   6   0   0 42.939  85.877   0.381    2.96    6       89.6      309.8
   18   5   1   1 44.363  88.727   0.391    2.86   12       27.6       56.8


  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  11.341  22.682  4.5485      2151.2     53.6     55.8     5.6
    2   1   0   1  18.642  37.284  2.79822     1913.0     47.6     49.0     5.7
    3   3   0   0  19.914  39.828  2.62608     3883.9     96.7     99.3     5.7
    4   2   0   1  22.043  44.086  2.38333     2453.4     61.1     62.4     5.7
    5   2   2   0  23.16   46.32   2.27425      430.8     10.7     10.9     5.7
    6   2   1   1  25.068  50.137  2.11108     2280.8     56.8     57.6     5.7
    7   3   1   1  30.452  60.904  1.76486     4015.7    100.0    100.0     5.8
    8   4   1   0  31.351  62.703  1.71917     1811.1     45.1     45.0     5.8
    9   4   0   1  32.931  65.862  1.64535     1945.7     48.5     48.1     5.9
   10   3   2   1  35.317  70.635  1.54723      630.3     15.7     15.4     5.9
   11   3   3   0  36.153  72.307  1.51617     1308.7     32.6     32.0     5.9
   12   1   0   2  37.467  74.935  1.4704      1132.4     28.2     27.5     6.0
   13   5   0   1  39.905  79.81   1.39429       69.3      1.7      1.7     6.0
   14   2   1   2  41.98   83.959  1.33728      273.8      6.8      6.5     6.1
   15   6   0   0  42.939  85.877  1.31304      309.8      7.7      7.3     6.1
   16   5   1   1  44.363  88.727  1.27925       56.8      1.4      1.3     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)