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

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GALLITE

2, t-chalcopyrite, syn, f-chalcopyrite, sf-proper chalcopyrite, g-chalcopyrite

CuGaS(2)


Tetragonal  I 4(-)2d  Z = 4

I4(-)2d

23 .10 .9

Ref.Str.:

         Brandt G., Rauber A., Schneider J. (1973)

         * Solid State Comm. 12 (1973) 481-483

         R: N.A.D.

                   Initial data from BDM-file 

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

             a =   5.351    alpha =   90.0 
             b =   5.351    beta  =   90.0 
             c =  10.48     gamma =   90.0 

    Unit cell volume (cub. angs.) =   300.08

    Molar volume ( cub.cm/mol.) =    45.19

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

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

   1 0.0     0.0     0.0      0.0    Cu    = 1.00
   2 0.0     0.0     0.5      0.0    Ga    = 1.00
   3 0.272   0.25    0.125    0.0    S     = 1.00


  Co-ordinates for all atomic positions :

   No       NoP      x/a        y/b       z/c 

     1       1     0.0        0.0        0.0   
     2       2     0.0        0.0        0.5   
     3       3     0.272      0.25       0.125 
     4       3     0.25       0.728      0.875 
     5       3     0.728      0.75       0.125 
     6       3     0.75       0.272      0.875 
     7       1     0.5        0.5        0.5   
     8       2     0.5        0.5        0.0   
     9       3     0.228      0.25       0.625 
    10       3     0.25       0.772      0.375 
    11       3     0.772      0.75       0.625 
    12       3     0.75       0.228      0.375 
    13       1     0.0        0.5        0.25  
    14       2     0.0        0.5        0.75  
    15       1     0.5        0.0        0.75  
    16       2     0.5        0.0        0.25  


X-ray density (g/cm cub.)   =      4.37

MU (1/cm) =     307.701    Mass attenuation coefficient (cm**2/g) =     70.449

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

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

    1    Cu                  3.36         4
                                                 2.3715       3
                                                 2.3715       3
                                                 2.3715       3
                                                 2.3715       3
    2    Ga                  2.928        4
                                                 2.2348       3
                                                 2.2348       3
                                                 2.2348       3
                                                 2.2348       3
    3    S                   4.368       12
                                                 3.6634       3
                                                 3.8315       3
                                                 3.6211       3
                                                 3.6211       3
                                                 3.9537       3
                                                 3.9537       3
                                                 3.6634       3
                                                 3.8315       3
                                                 3.8315       3
                                                 3.6634       3
                                                 3.6634       3
                                                 3.8315       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   0   1 10.818  21.636   0.105   53.87    8       10.5       52.9
    2   1   1   0 13.674  27.348   0.132   32.95    4        0.0        0.0
    3   1   1   2 16.953  33.906   0.163   20.77    8      231.0     9841.0
    4   1   0   3 17.805  35.61    0.171   18.66    8        6.7        7.3
    5   2   0   0 19.531  39.062   0.187   15.22    4      114.1      879.8
    6   0   0   4 19.962  39.924   0.191   14.5     2      112.3      406.0
    7   2   0   2 22.047  44.095   0.21    11.61    8        1.6        0.3
    8   2   1   1 22.544  45.088   0.214   11.04   16       14.0       38.3
    9   2   1   3 26.941  53.881   0.253    7.36   16       11.1       16.0
   10   1   0   5 27.279  54.557   0.256    7.16    8        8.4        4.5
   11   2   2   0 28.216  56.431   0.264    6.63    4      260.3     1995.7
   12   2   0   4 28.544  57.087   0.267    6.46    8      260.7     3900.2
   13   3   0   1 30.576  61.152   0.284    5.53    8       18.7       17.1
   14   3   1   0 31.911  63.822   0.295    5.04    8        2.7        0.3
   15   3   1   2 33.744  67.487   0.311    4.47   16      187.9     2803.3
   16   3   0   3 34.268  68.535   0.315    4.33    8        9.8        3.7
   17   1   1   6 34.335  68.669   0.315    4.31    8      187.6     1348.1
   18   2   1   5 34.562  69.123   0.317    4.25   16        9.6        7.0
   19   2   2   4 35.674  71.347   0.326    3.99    8      104.9      390.0
   20   3   2   1 37.496  74.992   0.34     3.63   16       12.8       10.6
   21   2   0   6 37.703  75.405   0.342    3.59    8        1.3        0.1
   22   1   0   7 38.345  76.689   0.347    3.49    8        0.3        0.0
   23   3   1   4 38.996  77.991   0.352    3.39   16        2.5        0.4
   24   3   2   3 40.907  81.813   0.366    3.15   16       20.5       23.6
   25   3   0   5 41.184  82.367   0.368    3.12    8        7.9        1.7
   26   4   0   0 41.961  83.923   0.374    3.04    4      220.4      656.4
   27   0   0   8 43.062  86.125   0.382    2.95    2      222.7      325.0
   28   4   0   2 43.636  87.272   0.386    2.91    8        4.8        0.6
   29   4   1   1 43.985  87.97    0.388    2.89   16       16.8       14.4
   30   2   1   7 44.808  89.616   0.394    2.84   16       13.2        8.8


  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   2  16.953  33.906  3.06759     9841.0    100.0    100.0     5.7
    2   2   0   0  19.531  39.062  2.6755       879.8      8.9      8.9     5.7
    3   0   0   4  19.962  39.924  2.62         406.0      4.1      4.1     5.7
    4   2   2   0  28.216  56.431  1.89186     1995.7     20.3     19.8     5.8
    5   2   0   4  28.544  57.087  1.87193     3900.2     39.6     38.6     5.8
    6   3   1   2  33.744  67.487  1.61026     2803.3     28.5     27.3     5.9
    7   1   1   6  34.335  68.669  1.58585     1348.1     13.7     13.1     5.9
    8   2   2   4  35.674  71.347  1.53379      390.0      4.0      3.8     5.9
    9   4   0   0  41.961  83.923  1.33775      656.4      6.7      6.2     6.1
   10   0   0   8  43.062  86.125  1.31         325.0      3.3      3.0     6.1

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)