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

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          ***      W W W - X R A Y P O L       ***
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TRUSTEDTITE

1, indite type

NiNi(2)Se(4)


Cubic  * Fd3m  Z = 8

*Fd3m

27 .5 .1994

Ref.Str.:

         Hill R.J., Craig J.R., Gibbs G.V. (1978)

         * J. Phys. Chem. Solids, 39, 1105-1111

Ref.Composition & Lattice:

         Povarennih A.S. (1966)

         * Kristallohim. klassif. miner. vidov (in Russia)

Reserv:

         The coordinates of atoms are from indite.  N.A.D.

                   Initial data from BDM-file 

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

             a =   9.94     alpha =   90.0 
             b =   9.94     beta  =   90.0 
             c =   9.94     gamma =   90.0 

    Unit cell volume (cub. angs.) =   982.11

    Molar volume ( cub.cm/mol.) =    73.94

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

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

   1 0.125   0.125   0.125    0.0    Ni    = 1.00
   2 0.5     0.5     0.5      0.0    Ni    = 1.00
   3 0.2591  0.2591  0.2591   0.0    Se    = 1.00


  Co-ordinates for all atomic positions :

   No       NoP      x/a        y/b       z/c 

     1       1     0.125      0.125      0.125 
     2       2     0.5        0.5        0.5   
     3       3     0.2591     0.2591     0.2591
     4       1     0.875      0.875      0.875 
     5       3     0.7409     0.7409     0.7409
     6       1     0.375      0.875      0.375 
     7       1     0.625      0.125      0.625 
     8       1     0.375      0.375      0.875 
     9       2     0.0        0.25       0.75  
    10       2     0.25       0.75       0.0   
    11       2     0.75       0.0        0.25  
    12       3     0.2409     0.0091     0.5091
    13       3     0.4909     0.9909     0.7591
    14       3     0.5091     0.2409     0.0091
    15       1     0.625      0.625      0.125 
    16       1     0.875      0.375      0.375 
    17       1     0.125      0.625      0.625 
    18       3     0.7591     0.4909     0.9909
    19       3     0.0091     0.5091     0.2409
    20       3     0.9909     0.7591     0.4909
    21       2     0.0        0.75       0.25  
    22       2     0.75       0.25       0.0   
    23       2     0.25       0.0        0.75  
    24       3     0.2409     0.5091     0.0091
    25       3     0.9909     0.4909     0.7591
    26       3     0.0091     0.2409     0.5091
    27       3     0.7591     0.9909     0.4909
    28       3     0.5091     0.0091     0.2409
    29       3     0.4909     0.7591     0.9909
    30       2     0.25       0.25       0.5   
    31       2     0.25       0.5        0.25  
    32       2     0.0        0.5        0.0   
    33       2     0.75       0.5        0.75  
    34       2     0.0        0.0        0.5   
    35       2     0.5        0.25       0.25  
    36       2     0.5        0.0        0.0   
    37       2     0.5        0.75       0.75  
    38       2     0.75       0.75       0.5   
    39       3     0.4909     0.4909     0.2591
    40       3     0.0091     0.7409     0.0091
    41       3     0.7591     0.2591     0.7591
    42       3     0.5091     0.7409     0.5091
    43       3     0.7591     0.7591     0.2591
    44       3     0.7409     0.0091     0.0091
    45       3     0.2591     0.7591     0.7591
    46       3     0.7409     0.5091     0.5091
    47       3     0.9909     0.9909     0.2591
    48       3     0.0091     0.0091     0.7409
    49       3     0.4909     0.2591     0.4909
    50       3     0.2409     0.7409     0.2409
    51       3     0.9909     0.2591     0.9909
    52       3     0.2409     0.2409     0.7409
    53       3     0.2591     0.4909     0.4909
    54       3     0.7409     0.2409     0.2409
    55       3     0.2591     0.9909     0.9909
    56       3     0.5091     0.5091     0.7409


X-ray density (g/cm cub.)   =      6.65

MU (1/cm) =     765.783    Mass attenuation coefficient (cm**2/g) =    115.121

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

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

    1    Ni                  3.204        4
                                                 2.3087       3
                                                 2.3087       3
                                                 2.3087       3
                                                 2.3087       3
    2    Ni                  3.204        6
                                                 2.398        3
                                                 2.398        3
                                                 2.398        3
                                                 2.398        3
                                                 2.398        3
                                                 2.398        3
    3    Se                  4.632       12
                                                 3.519        3
                                                 3.519        3
                                                 3.519        3
                                                 3.519        3
                                                 3.519        3
                                                 3.519        3
                                                 3.2585       3
                                                 3.7702       3
                                                 3.2585       3
                                                 3.7702       3
                                                 3.2585       3
                                                 3.7702       3

  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   1  8.967  17.933   0.087   79.4     8      149.1     1464.7
    2   2   2   0 14.745  29.49    0.142   28.06   12      206.3     1485.8
    3   3   1   0 16.533  33.065   0.159   21.93   24        0.0        0.0
    4   1   1   3 17.365  34.729   0.167   19.71   24      292.3     4189.3
    5   2   2   2 18.163  36.326   0.174   17.86    8      511.5     3876.5
    6   4   0   0 21.097  42.193   0.201   12.81    6     1015.2     8214.9
    7   3   3   1 23.094  46.188   0.219   10.45   24       66.4      114.6
    8   2   2   4 26.157  52.315   0.246    7.88   24      154.0      464.5
    9   1   1   5 27.877  55.755   0.261    6.81   24      427.3     3095.3
   10   3   3   3 27.877  55.755   0.261    6.81    8       75.7       32.4
   11   4   4   0 30.6    61.199   0.285    5.52   12     1183.9     9632.9
   12   5   3   0 31.648  63.297   0.293    5.13   24        0.0        0.0
   13   5   3   1 32.165  64.331   0.298    4.95   48      105.8      275.8
   14   4   4   2 32.678  65.356   0.302    4.78   24       38.0       17.2
   15   6   2   0 34.689  69.378   0.318    4.22   24      117.0      143.6
   16   3   3   5 36.162  72.325   0.33     3.89   24      227.5      500.5
   17   2   2   6 36.648  73.296   0.334    3.79   24      380.1     1361.3
   18   4   4   4 38.568  77.136   0.349    3.45    8      781.7     1750.2
   19   7   1   0 39.516  79.032   0.356    3.32   24        0.0        0.0
   20   1   1   7 39.988  79.976   0.359    3.26   24       58.5       27.7
   21   5   5   1 39.988  79.976   0.359    3.26   24      244.7      485.3
   22   6   4   2 42.329  84.659   0.376    3.01   48      155.2      360.9
   23   5   5   3 43.725  87.45    0.386    2.9    24      338.2      825.9
   24   7   3   1 43.725  87.45    0.386    2.9    48       57.5       47.8


  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   1   8.967  17.933  5.73886     1464.7     15.2     15.9     5.6
    2   2   2   0  14.745  29.49   3.51432     1485.8     15.4     16.0     5.6
    3   1   1   3  17.365  34.729  2.99702     4189.3     43.5     44.9     5.7
    4   2   2   2  18.163  36.326  2.86943     3876.5     40.2     41.5     5.7
    5   4   0   0  21.097  42.193  2.485       8214.9     85.3     87.3     5.7
    6   3   3   1  23.094  46.188  2.28039      114.6      1.2      1.2     5.7
    7   2   2   4  26.157  52.315  2.02899      464.5      4.8      4.9     5.8
    8   1   1   5  27.877  55.755  1.91295     3127.7     32.5     32.7     5.8
    9   4   4   0  30.6    61.199  1.75716     9632.9    100.0    100.0     5.8
   10   5   3   1  32.165  64.331  1.68017      275.8      2.9      2.8     5.9
   11   6   2   0  34.689  69.378  1.57165      143.6      1.5      1.5     5.9
   12   3   3   5  36.162  72.325  1.51584      500.5      5.2      5.1     5.9
   13   2   2   6  36.648  73.296  1.49851     1361.3     14.1     13.8     6.0
   14   4   4   4  38.568  77.136  1.43472     1750.2     18.2     17.7     6.0
   15   5   5   1  39.988  79.976  1.39188      513.0      5.3      5.1     6.0
   16   6   4   2  42.329  84.659  1.32829      360.9      3.7      3.6     6.1
   17   5   5   3  43.725  87.45   1.29408      873.7      9.1      8.6     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)