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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GALLITE

3, t-chalcopyrite, analogue

CuAlS(2)


Tetragonal  I 4(-)2d  Z = 4

I4(-)2d

21 .11 .14

Ref.Str.:

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

         * Solid State Comm., 12 481-483

         L: $Cu1 Al1 S2$

         R: N.A.D.

                   Initial data from BDM-file 

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

             a =   5.3336   alpha =   90.0 
             b =   5.3336   beta  =   90.0 
             c =  10.444    gamma =   90.0 

    Unit cell volume (cub. angs.) =   297.1 

    Molar volume ( cub.cm/mol.) =    44.74

  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    Al    = 1.00
   3 0.268   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     0.268      0.25       0.125 
     4       3     0.25       0.732      0.875 
     5       3     0.732      0.75       0.125 
     6       3     0.75       0.268      0.875 
     7       1     0.5        0.5        0.5   
     8       2     0.5        0.5        0.0   
     9       3     0.232      0.25       0.625 
    10       3     0.25       0.768      0.375 
    11       3     0.768      0.75       0.625 
    12       3     0.75       0.232      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.)   =      3.46

MU (1/cm) =     355.884    Mass attenuation coefficient (cm**2/g) =    102.969

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

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

    1    Cu                  3.36         4
                                                 2.3506       3
                                                 2.3506       3
                                                 2.3506       3
                                                 2.3506       3
    2    Al                  2.868        4
                                                 2.2391       3
                                                 2.2391       3
                                                 2.2391       3
                                                 2.2391       3
    3    S                   4.368       12
                                                 3.6655       3
                                                 3.8026       3
                                                 3.6382       3
                                                 3.6382       3
                                                 3.9096       3
                                                 3.9096       3
                                                 3.6655       3
                                                 3.8026       3
                                                 3.8026       3
                                                 3.6655       3
                                                 3.6655       3
                                                 3.8026       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 10.854  21.708   0.105   53.5     8       40.1      780.7
    2   1   1   0 13.719  27.439   0.133   32.71    4        0.0        0.0
    3   1   1   2 17.011  34.022   0.164   20.61    8      173.3     5609.9
    4   1   0   3 17.868  35.735   0.172   18.52    8       51.6      447.4
    5   2   0   0 19.597  39.194   0.187   15.1     4       49.5      167.5
    6   0   0   4 20.034  40.068   0.191   14.38    2       48.6       76.9
    7   2   0   2 22.124  44.248   0.211   11.52    8        1.1        0.1
    8   2   1   1 22.622  45.244   0.215   10.95   16       51.2      519.4
    9   2   1   3 27.037  54.075   0.254    7.3    16       40.8      220.3
   10   1   0   5 27.38   54.759   0.257    7.1     8       48.6      151.9
   11   2   2   0 28.316  56.632   0.265    6.58    4      203.4     1233.1
   12   2   0   4 28.648  57.296   0.268    6.4     8      203.6     2405.3
   13   3   0   1 30.687  61.374   0.285    5.49    8       55.5      153.4
   14   3   1   0 32.027  64.055   0.296    5.0     8        1.8        0.2
   15   3   1   2 33.869  67.738   0.312    4.43   16      139.6     1566.1
   16   3   0   3 34.397  68.793   0.316    4.29    8       30.2       35.6
   17   1   1   6 34.468  68.937   0.316    4.28    8      139.6      755.1
   18   2   1   5 34.695  69.389   0.318    4.22   16       38.7      114.7
   19   2   2   4 35.811  71.621   0.327    3.96    8       51.7       96.0
   20   3   2   1 37.64   75.28    0.341    3.6    16       30.6       61.0
   21   2   0   6 37.853  75.706   0.343    3.57    8        0.9        0.0
   22   1   0   7 38.5    77.001   0.348    3.46    8       36.8       42.5
   23   3   1   4 39.15   78.299   0.353    3.37   16        1.7        0.2
   24   3   2   3 41.07   82.141   0.367    3.13   16       51.2      148.5
   25   3   0   5 41.351  82.702   0.369    3.1     8       28.8       23.3
   26   4   0   0 42.13   84.259   0.375    3.03    4      173.5      412.9
   27   0   0   8 43.247  86.494   0.383    2.94    2      174.9      203.5
   28   4   0   2 43.815  87.63    0.387    2.9     8        3.2        0.3
   29   4   1   1 44.166  88.332   0.389    2.87   16       37.8       74.4


  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   0   1  10.854  21.708  4.75004      780.7     13.9     14.1     5.6
    2   1   1   2  17.011  34.022  3.05742     5609.9    100.0    100.0     5.7
    3   1   0   3  17.868  35.735  2.91528      447.4      8.0      8.0     5.7
    4   2   0   0  19.597  39.194  2.6668       167.5      3.0      3.0     5.7
    5   0   0   4  20.034  40.068  2.611         76.9      1.4      1.4     5.7
    6   2   1   1  22.622  45.244  2.32538      519.4      9.3      9.2     5.7
    7   2   1   3  27.037  54.075  1.9677       220.3      3.9      3.8     5.8
    8   1   0   5  27.38   54.759  1.94496      151.9      2.7      2.6     5.8
    9   2   2   0  28.316  56.632  1.88571     1233.1     22.0     21.4     5.8
   10   2   0   4  28.648  57.296  1.86567     2405.3     42.9     41.8     5.8
   11   3   0   1  30.687  61.374  1.75265      153.4      2.7      2.6     5.8
   12   3   1   2  33.869  67.738  1.60499     1566.1     27.9     26.8     5.9
   13   1   1   6  34.468  68.937  1.58045      755.1     13.5     12.9     5.9
   14   2   1   5  34.695  69.389  1.57143      114.7      2.0      2.0     5.9
   15   2   2   4  35.811  71.621  1.52871       96.0      1.7      1.6     5.9
   16   3   2   1  37.64   75.28   1.46466       61.0      1.1      1.0     6.0
   17   3   2   3  41.07   82.141  1.36146      148.5      2.6      2.5     6.1
   18   4   0   0  42.13   84.259  1.3334       412.9      7.4      6.8     6.1
   19   0   0   8  43.247  86.494  1.3055       203.5      3.6      3.3     6.1
   20   4   1   1  44.166  88.332  1.28378       74.4      1.3      1.2     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)