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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HOCARTITE

3, t-stannite, f-stannite, sf-stannite, s-stannite

Ag(2)(Fe,Zn)SnS(4)


Tetragonal  I 4(-)2m  Z = 2

I4(-)2m

7 .2 .20

Ref.Str.:

         R. Caye, Y. Laurent, P. Picot, R. Pierrot, C. Levy (1968)

         * Bull. Soc. Mineral., 91, 383–38

         L: $Ag1.65 Cu0.14 Fe0.67 Zn0.32 Sn1.04 S4.0$

         R: Locality - Tacama, Bolivia.

         The coordinates of atoms ar from stannine.   N.A.D.

                   Initial data from BDM-file 

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

             a =   5.74     alpha =   90.0 
             b =   5.74     beta  =   90.0 
             c =  10.96     gamma =   90.0 

    Unit cell volume (cub. angs.) =   361.11

    Molar volume ( cub.cm/mol.) =   108.75

  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    Fe    = 0.67, Zn    = 0.32
   2 0.0     0.0     0.5      0.0    Sn    = 1.00
   3 0.0     0.5     0.25     0.0    Ag    = 0.83, Cu    = 0.07
   4 0.245   0.245   0.132    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     0.0        0.5        0.25  
     4       4     0.245      0.245      0.132 
     5       3     0.5        0.0        0.75  
     6       4     0.245      0.755      0.868 
     7       4     0.755      0.755      0.132 
     8       4     0.755      0.245      0.868 
     9       3     0.0        0.5        0.75  
    10       3     0.5        0.0        0.25  
    11       1     0.5        0.5        0.5   
    12       2     0.5        0.5        0.0   
    13       4     0.255      0.255      0.632 
    14       4     0.255      0.745      0.368 
    15       4     0.745      0.745      0.632 
    16       4     0.745      0.255      0.368 


X-ray density (g/cm cub.)   =      4.53

MU (1/cm) =    1120.675    Mass attenuation coefficient (cm**2/g) =    247.132

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

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

    1   Fe   ,Zn             3.18         4
                                                 2.4593       4
                                                 2.4593       4
                                                 2.4593       4
                                                 2.4593       4
    2    Sn                  3.408        4
                                                 2.5254       4
                                                 2.5254       4
                                                 2.5254       4
                                                 2.5254       4
    3   Ag   ,Cu             3.54         4
                                                 2.4068       4
                                                 2.4068       4
                                                 2.4068       4
                                                 2.4068       4
    4    S                   4.368       12
                                                 4.116        4
                                                 4.0352       4
                                                 4.14         4
                                                 4.0596       4
                                                 4.0596       4
                                                 3.9776       4
                                                 4.116        4
                                                 4.0352       4
                                                 3.864        4
                                                 3.864        4
                                                 3.864        4
                                                 3.864        4

  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   0   0   2  9.394  18.788   0.091   72.14    2       21.4       50.6
    2   1   0   1 10.131  20.263   0.098   61.72    8       40.8      629.4
    3   1   1   0 12.731  25.462   0.123   38.32    4       11.4       15.4
    4   1   1   2 15.917  31.833   0.153   23.81    8      292.7    12510.8
    5   1   0   3 16.871  33.742   0.162   20.99    8       42.5      232.4
    6   2   0   0 18.159  36.318   0.174   17.87    4      172.5     1630.3
    7   0   0   4 19.053  38.106   0.182   16.07    2      172.4      732.4
    8   2   0   2 20.598  41.197   0.197   13.52    8        3.0        0.7
    9   2   1   1 20.97   41.939   0.2     12.99   16       40.3      258.9
   10   1   1   4 23.195  46.391   0.22    10.35    8       18.1       20.8
   11   2   1   3 25.205  50.41    0.238    8.57   16       34.6      125.7
   12   1   0   5 25.9    51.8     0.244    8.05    8       37.5       69.6
   13   2   2   0 26.152  52.304   0.246    7.88    4      318.6     2453.2
   14   2   0   4 26.829  53.658   0.252    7.43    8      314.3     4506.0
   15   2   2   2 28.035  56.069   0.263    6.73    8       16.2       10.8
   16   3   0   1 28.331  56.661   0.265    6.57    8       40.2       65.0
   17   0   0   6 29.319  58.638   0.274    6.08    2       10.6        1.0
   18   3   1   0 29.523  59.046   0.275    5.98    8        9.4        3.2
   19   3   1   2 31.272  62.544   0.29     5.26   16      234.4     3550.4
   20   3   0   3 31.852  63.703   0.295    5.06    8       28.6       25.4
   21   2   1   5 32.452  64.903   0.3      4.86   16       32.9       64.4
   22   1   1   6 32.478  64.956   0.3      4.85    8      230.1     1574.7
   23   2   2   4 33.263  66.525   0.307    4.61    8      146.9      609.8
   24   3   2   1 34.593  69.186   0.317    4.24   16       28.9       43.6
   25   2   0   6 35.481  70.962   0.324    4.03    8       26.5       17.4
   26   3   1   4 36.235  72.47    0.33     3.87   16       14.5       10.0
   27   1   0   7 36.31   72.62    0.331    3.85    8       30.8       22.4
   28   3   2   3 37.798  75.596   0.343    3.58   16       37.4       61.4
   29   3   0   5 38.355  76.709   0.347    3.49    8       28.7       17.7
   30   4   0   0 38.559  77.118   0.348    3.46    4      269.7      770.7
   31   4   0   2 40.116  80.231   0.36     3.24    8       13.9        3.8
   32   4   1   1 40.366  80.731   0.362    3.21   16       30.8       37.4
   33   0   0   8 40.76   81.52    0.365    3.16    2      259.5      326.8
   34   2   2   6 41.21   82.419   0.368    3.12    8        8.9        1.5
   35   3   3   0 41.386  82.772   0.37     3.1     4        7.5        0.5
   36   2   1   7 42.002  84.004   0.374    3.04   16       33.0       40.7
   37   3   3   2 42.92   85.84    0.381    2.96    8      203.2      749.9
   38   4   1   3 43.438  86.876   0.384    2.92   16       32.8       38.6
   39   1   1   8 43.557  87.115   0.385    2.91    8       23.4        9.8
   40   3   2   5 43.979  87.958   0.388    2.89   16       34.1       41.2
   41   3   1   6 44.003  88.006   0.388    2.88   16      200.3     1420.2
   42   4   2   0 44.178  88.356   0.39     2.87    8      127.4      286.2
   43   4   0   4 44.719  89.437   0.393    2.84    8      127.4      283.3


  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  10.131  20.263  5.08485      629.4      5.0      5.1     5.6
    2   1   1   2  15.917  31.833  3.2616     12510.8    100.0    100.0     5.6
    3   1   0   3  16.871  33.742  3.08203      232.4      1.9      1.9     5.7
    4   2   0   0  18.159  36.318  2.87        1630.3     13.0     13.0     5.7
    5   0   0   4  19.053  38.106  2.74         732.4      5.9      5.8     5.7
    6   2   1   1  20.97   41.939  2.49937      258.9      2.1      2.0     5.7
    7   2   1   3  25.205  50.41   2.10036      125.7      1.0      1.0     5.8
    8   2   2   0  26.152  52.304  2.0294      2453.2     19.6     19.2     5.8
    9   2   0   4  26.829  53.658  1.98184     4506.0     36.0     35.2     5.8
   10   3   1   2  31.272  62.544  1.72308     3550.4     28.4     27.4     5.8
   11   1   1   6  32.478  64.956  1.66574     1639.1     13.1     12.6     5.9
   12   2   2   4  33.263  66.525  1.6308       609.8      4.9      4.7     5.9
   13   4   0   0  38.559  77.118  1.435        770.7      6.2      5.8     6.0
   14   0   0   8  40.76   81.52   1.37         326.8      2.6      2.4     6.1
   15   3   3   2  42.92   85.84   1.31349      749.9      6.0      5.5     6.1
   16   3   1   6  44.003  88.006  1.28756     1461.4     11.7     10.7     6.2
   17   4   2   0  44.178  88.356  1.2835       286.2      2.3      2.1     6.2
   18   4   0   4  44.719  89.437  1.27121      283.3      2.3      2.1     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)