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

                            ***

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

1, td-matlockite, f-cotunnite

PbCl(2)


Orthorhombic  P nam  Z = 4

R =0.04          NR =532

26 .5 .1992

Ref.Str.:

         Ju.Z.Nozik, L.E.Fykin, L.A.Muradjan (1976)

         * Kristallogr., 21, 76-79 [Soviet Physics, Crystallogr., 21, 38-40]

                   Initial data from BDM-file 

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

             a =   7.615    alpha =   90.0 
             b =   9.022    beta  =   90.0 
             c =   4.514    gamma =   90.0 

    Unit cell volume (cub. angs.) =   310.12

    Molar volume ( cub.cm/mol.) =    46.7 

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

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

   1 0.2607  0.0955  0.25     0.0    Pb    = 1.00
   2 0.8575  0.0745  0.25     0.0    Cl    = 1.00
   3 0.4773  0.8379  0.25     0.0    Cl    = 1.00


  Co-ordinates for all atomic positions :

   No       NoP      x/a        y/b       z/c 

     1       1     0.2607     0.0955     0.25  
     2       2     0.8575     0.0745     0.25  
     3       3     0.4773     0.8379     0.25  
     4       1     0.7393     0.9045     0.75  
     5       2     0.1425     0.9255     0.75  
     6       3     0.5227     0.1621     0.75  
     7       1     0.7607     0.4045     0.25  
     8       2     0.3575     0.4255     0.25  
     9       3     0.9773     0.6621     0.25  
    10       1     0.2393     0.5955     0.75  
    11       2     0.6425     0.5745     0.75  
    12       3     0.0227     0.3379     0.75  


X-ray density (g/cm cub.)   =      5.95

MU (1/cm) =    1190.153    Mass attenuation coefficient (cm**2/g) =    199.875

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

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

    1    Pb                  3.684        9
                                                 3.0762       2
                                                 2.8499       3
                                                 2.8734       2
                                                 2.8734       2
                                                 3.0717       3
                                                 3.0717       3
                                                 3.0672       2
                                                 3.6279       3
                                                 3.6279       3
    2    Cl                  4.344        8
                                                 3.5971       3
                                                 3.4075       2
                                                 3.4075       2
                                                 3.4955       3
                                                 3.4955       3
                                                 3.8309       3
                                                 3.5105       3
                                                 3.5105       3
    3    Cl                  4.344       10
                                                 3.5971       2
                                                 3.4955       2
                                                 3.4955       2
                                                 3.7106       3
                                                 3.7106       3
                                                 3.8309       2
                                                 4.1246       3
                                                 4.1246       3
                                                 3.5105       2
                                                 3.5105       2

  X-ray diffraction powder data (II),  X-Ray W.L. =   1.54056(angs.):

  No   H   K   L   Theta 2*Theta    S       LPG   MF        F          I int.
                    ( degree )                                         *100

    1   1   1   0  7.606  15.213   0.086  111.2     4       13.9       89.5
    2   0   2   0  9.832  19.664   0.111   65.67    2      113.2     1749.8
    3   0   1   1 11.0    22.0     0.124   52.03    4      136.7     4044.1
    4   1   2   0 11.447  22.895   0.129   47.89    4      218.4     9499.1
    5   2   0   0 11.672  23.344   0.131   45.98    2      235.9     5320.7
    6   1   1   1 12.472  24.944   0.14    40.01    8      194.0    12526.5
    7   2   1   0 12.685  25.369   0.143   38.61    4       32.5      169.2
    8   1   2   1 15.173  30.347   0.17    26.39    8       57.1      714.5
    9   2   0   1 15.347  30.694   0.172   25.75    4      102.6     1127.3
   10   2   2   0 15.351  30.703   0.172   25.74    4      126.0     1699.4
   11   1   3   0 15.985  31.97    0.179   23.59    4       60.8      363.2
   12   2   1   1 16.146  32.293   0.181   23.08    8      196.0     7372.8
   13   0   3   1 17.925  35.85    0.2     18.39    4      296.8     6734.5
   14   2   2   1 18.359  36.718   0.204   17.45    8       34.6      174.0
   15   3   1   0 18.375  36.751   0.205   17.41    4       20.0       29.0
   16   1   3   1 18.903  37.806   0.21    16.36    8       71.0      686.8
   17   2   3   0 19.05   38.1     0.212   16.08    4       78.4      411.2
   18   0   0   2 19.955  39.91    0.222   14.51    2      346.0     3611.2
   19   0   4   0 19.969  39.938   0.222   14.49    2      227.8     1562.5
   20   3   2   0 20.377  40.755   0.226   13.85    4      262.5     3968.7
   21   1   4   0 20.866  41.731   0.231   13.13    4      138.7     1051.1
   22   3   1   1 21.006  42.012   0.233   12.94    8      208.9     4696.5
   23   1   1   2 21.473  42.945   0.238   12.32    8       11.9       14.6
   24   2   3   1 21.611  43.223   0.239   12.14    8      251.3     6374.7
   25   0   2   2 22.434  44.868   0.248   11.16    4       94.7      415.8
   26   3   2   1 22.816  45.631   0.252   10.74    8       49.2      216.4
   27   1   2   2 23.253  46.507   0.256   10.29    8      191.4     3135.7
   28   1   4   1 23.263  46.525   0.256   10.28    8       19.5       32.6
   29   2   0   2 23.375  46.749   0.258   10.17    4      206.4     1802.3
   30   2   4   0 23.387  46.774   0.258   10.16    4      153.9     1001.2
   31   3   3   0 23.397  46.795   0.258   10.15    4       21.9       20.2
   32   4   0   0 23.867  47.734   0.263    9.7     2      227.9     1047.4
   33   2   1   2 23.943  47.885   0.263    9.63    8       26.7       57.0
   34   4   1   0 24.426  48.853   0.268    9.2     4       63.2      153.1
   35   2   2   2 25.59   51.18    0.28     8.28    8      107.1      790.3
   36   2   4   1 25.598  51.197   0.28     8.27    8       42.0      121.6
   37   3   3   1 25.608  51.217   0.281    8.27    8       32.0       70.2
   38   1   3   2 26.01   52.021   0.285    7.98    8       48.2      154.4
   39   1   5   0 26.022  52.043   0.285    7.97    4       17.4       10.1
   40   4   0   1 26.048  52.096   0.285    7.95    4       57.1      107.7
   41   4   2   0 26.051  52.102   0.285    7.95    4       43.7       63.1
   42   4   1   1 26.574  53.147   0.29     7.6     8       80.0      404.9
   43   3   4   0 27.184  54.369   0.297    7.21    4      155.0      720.9
   44   0   5   1 27.37   54.74    0.298    7.1     4       98.0      283.6
   45   3   1   2 27.684  55.369   0.302    6.92    8       13.2       10.0
   46   1   5   1 28.082  56.163   0.306    6.7     8      200.1     2232.3
   47   4   2   1 28.109  56.219   0.306    6.69    8       41.3       94.9
   48   2   3   2 28.18   56.359   0.307    6.65    8       66.4      244.2
   49   2   5   0 28.19   56.381   0.307    6.64    4       42.1       49.1
   50   4   3   0 28.612  57.223   0.311    6.42    4       76.4      155.9
   51   0   4   2 28.869  57.738   0.313    6.29    4      200.0     1047.2
   52   3   2   2 29.181  58.361   0.316    6.14    8      231.9     2747.9
   53   3   4   1 29.189  58.377   0.317    6.14    8       31.2       49.8
   54   1   4   2 29.557  59.114   0.32     5.97    8      125.4      781.1
   55   2   5   1 30.151  60.301   0.326    5.71    8        2.8        0.4
   56   4   3   1 30.555  61.11    0.33     5.54    8      169.5     1323.8
   57   0   6   0 30.815  61.63    0.333    5.44    2      194.5      428.0
   58   5   1   0 30.859  61.717   0.333    5.42    4       82.3      152.6
   59   0   1   3 31.265  62.53    0.337    5.27    4      107.8      254.6
   60   1   6   0 31.477  62.954   0.339    5.19    4      104.4      235.2
   61   2   4   2 31.566  63.132   0.34     5.16    8      139.4      833.9
   62   3   3   2 31.575  63.149   0.34     5.15    8       18.3       14.4
   63   3   5   0 31.585  63.169   0.34     5.15    4       32.3       22.3
   64   1   1   3 31.922  63.844   0.343    5.03    8      154.5      999.7
   65   4   0   2 31.96   63.92    0.344    5.02    4      205.4      881.2
   66   4   4   0 31.97   63.94    0.344    5.02    4      161.8      546.5
   67   5   2   0 32.263  64.527   0.347    4.92    4      196.3      787.8
   68   4   1   2 32.423  64.846   0.348    4.87    8       56.1      127.5
   69   5   1   1 32.722  65.444   0.351    4.77    8      210.7     1761.3
   70   1   2   3 33.302  66.604   0.356    4.59    8       37.1       52.7
   71   1   6   1 33.321  66.643   0.357    4.59    8        7.6        2.2
   72   2   0   3 33.398  66.796   0.357    4.57    4       74.0      104.0
   73   2   6   0 33.42   66.84    0.358    4.56    4      229.8     1002.1
   74   3   5   1 33.426  66.851   0.358    4.56    8      222.0     1868.8
   75   1   5   2 33.768  67.535   0.361    4.46    8       14.9        8.3
   76   4   2   2 33.792  67.585   0.361    4.46    8       40.6       61.1
   77   4   4   1 33.8    67.599   0.361    4.45    8       34.2       43.4
   78   2   1   3 33.851  67.702   0.362    4.44    8      150.8      840.1
   79   5   2   1 34.085  68.17    0.364    4.38    8       47.0       80.5
   80   5   3   0 34.536  69.072   0.368    4.26    4       41.2       30.1
   81   3   4   2 34.768  69.536   0.37     4.2     8      140.9      693.6
   82   0   3   3 34.92   69.839   0.372    4.16    4      234.4      951.8
   83   2   2   3 35.193  70.385   0.374    4.1     8       26.1       23.2
   84   2   6   1 35.212  70.423   0.374    4.09    8       47.7       77.7
   85   1   3   3 35.542  71.084   0.377    4.02    8       56.4      106.2
   86   2   5   2 35.647  71.293   0.378    4.0     8       37.8       47.5
   87   4   3   2 36.018  72.036   0.382    3.92    8       69.4      157.0
   88   4   5   0 36.027  72.055   0.382    3.91    4        0.8        0.0
   89   5   3   1 36.303  72.605   0.384    3.86    8       61.0      119.5
   90   3   6   0 36.541  73.083   0.386    3.81    4       85.9      116.9
   91   3   1   3 36.956  73.912   0.39     3.73    8      170.1      897.8
   92   1   7   0 37.311  74.623   0.393    3.66    4       37.4       21.3
   93   6   0   0 37.367  74.734   0.394    3.65    2      141.9      153.0
   94   2   3   3 37.382  74.764   0.394    3.65    8      205.1     1277.6
   95   5   4   0 37.609  75.218   0.396    3.61    4      178.5      478.2
   96   4   5   1 37.765  75.53    0.398    3.58    8       31.8       30.2
   97   6   1   0 37.799  75.598   0.398    3.58    4       10.2        1.5
   98   0   6   2 37.991  75.983   0.4      3.55    4      178.4      469.3
   99   5   1   2 38.031  76.062   0.4      3.54    8       75.3      166.9
  100   3   2   3 38.252  76.504   0.402    3.5     8       40.4       47.5
  101   3   6   1 38.27   76.541   0.402    3.5     8       33.1       31.9
  102   0   7   1 38.428  76.856   0.403    3.48    4      204.1      602.0
  103   1   4   3 38.583  77.165   0.405    3.45    8       15.8        7.1
  104   1   6   2 38.594  77.188   0.405    3.45    8       95.8      263.5
  105   3   5   2 38.692  77.385   0.406    3.43    8       29.7       25.2
  106   1   7   1 39.029  78.057   0.409    3.39    8       67.5      128.1
  107   4   4   2 39.045  78.09    0.409    3.38    8      148.8      622.7
  108   6   0   1 39.083  78.167   0.409    3.38    4       76.5       82.3
  109   6   2   0 39.086  78.171   0.409    3.38    4       63.7       56.9
  110   2   7   0 39.121  78.242   0.41     3.37    4       34.7       16.9
  111   5   2   2 39.315  78.63    0.411    3.34    8      180.5      906.7
  112   5   4   1 39.322  78.644   0.411    3.34    8       72.1      144.5
  113   6   1   1 39.509  79.019   0.413    3.32    8      111.9      345.4
  114   2   4   3 40.375  80.75    0.42     3.21    8       34.6       32.0
  115   3   3   3 40.383  80.765   0.421    3.21    8       27.2       19.8
  116   2   6   2 40.386  80.772   0.421    3.21    8      212.0     1198.8
  117   4   0   3 40.732  81.464   0.424    3.17    4       47.9       30.2
  118   4   6   0 40.752  81.504   0.424    3.17    4      111.9      164.9
  119   6   2   1 40.781  81.561   0.424    3.16    8        0.7        0.0
  120   2   7   1 40.816  81.631   0.424    3.16    8      144.9      551.3
  121   4   1   3 41.154  82.307   0.427    3.12    8       68.0      120.2
  122   6   3   0 41.205  82.41    0.428    3.12    4       45.9       27.3
  123   5   3   2 41.431  82.863   0.43     3.09    8       38.1       37.4
  124   5   5   0 41.44   82.881   0.43     3.09    4       59.1       44.9
  125   0   5   3 41.802  83.604   0.433    3.06    4       81.4       84.3
  126   3   7   0 42.088  84.176   0.435    3.03    4        9.4        1.1
  127   1   5   3 42.392  84.783   0.438    3.0     8      169.1      714.6
  128   4   2   3 42.415  84.829   0.438    3.0     8       34.6       30.0
  129   4   6   1 42.432  84.865   0.438    3.0     8       76.2      144.7
  130   4   5   2 42.845  85.69    0.441    2.97    8        0.7        0.0
  131   6   3   1 42.882  85.765   0.442    2.96    8      152.3      571.7
  132   0   0   4 43.045  86.09    0.443    2.95    2      255.0      399.0
  133   0   8   0 43.08   86.161   0.443    2.95    2       19.7        2.4
  134   5   5   1 43.117  86.233   0.444    2.95    8      191.3      896.9
  135   3   4   3 43.325  86.651   0.445    2.93    8       26.1       16.6
  136   3   6   2 43.336  86.673   0.445    2.93    8       79.7      154.7
  137   1   8   0 43.668  87.335   0.448    2.91    4      177.4      380.3
  138   3   7   1 43.761  87.523   0.449    2.9     8      113.5      310.5
  139   1   1   4 44.05   88.1     0.451    2.88    8        9.2        2.0
  140   1   7   2 44.077  88.153   0.452    2.88    8       35.1       29.5
  141   6   0   2 44.13   88.261   0.452    2.88    4      131.5      207.0
  142   6   4   0 44.139  88.279   0.452    2.88    4      108.7      141.4
  143   2   5   3 44.154  88.307   0.452    2.87    8        2.4        0.1
  144   5   4   2 44.364  88.728   0.454    2.86    8      166.2      658.0
  145   4   3   3 44.506  89.013   0.455    2.85    8      144.4      494.9
  146   6   1   2 44.548  89.096   0.455    2.85    8        9.2        2.0
  147   0   2   4 44.717  89.434   0.457    2.84    4       72.2       61.6


  X-ray diffraction powder data (I)...X-Ray wave length =  1.54056 (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   0   2   0   9.832  19.664  4.511       1749.8     14.0     14.0     5.6
    2   0   1   1  11.0    22.0    4.03691     4044.1     32.3     32.4     5.6
    3   1   2   0  11.447  22.895  3.88113     9499.1     75.8     75.9     5.6
    4   2   0   0  11.672  23.344  3.8075      5320.7     42.5     42.5     5.6
    5   1   1   1  12.472  24.944  3.56672    12526.5    100.0    100.0     5.6
    6   2   1   0  12.685  25.369  3.50791      169.2      1.4      1.4     5.6
    7   1   2   1  15.173  30.347  2.94291      714.5      5.7      5.7     5.6
    8   2   2   0  15.351  30.703  2.90961     2826.7     22.6     22.5     5.6
    9   1   3   0  15.985  31.97   2.79711      363.2      2.9      2.9     5.6
   10   2   1   1  16.146  32.293  2.76986     7372.8     58.9     58.5     5.6
   11   0   3   1  17.925  35.85   2.50276     6734.5     53.8     53.3     5.7
   12   2   2   1  18.359  36.718  2.44559      203.0      1.6      1.6     5.7
   13   1   3   1  18.903  37.806  2.37764      686.8      5.5      5.4     5.7
   14   2   3   0  19.05   38.1    2.35998      411.2      3.3      3.2     5.7
   15   0   0   2  19.955  39.91   2.257       5173.7     41.3     40.8     5.7
   16   3   2   0  20.377  40.755  2.21216     3968.7     31.7     31.2     5.7
   17   1   4   0  20.866  41.731  2.16263     1051.1      8.4      8.3     5.7
   18   3   1   1  21.006  42.012  2.14884     4696.5     37.5     36.9     5.7
   19   2   3   1  21.611  43.223  2.0914      6374.7     50.9     50.1     5.7
   20   0   2   2  22.434  44.868  2.01845      415.8      3.3      3.3     5.7
   21   3   2   1  22.816  45.631  1.98645      216.4      1.7      1.7     5.7
   22   1   2   2  23.253  46.507  1.95108     3168.3     25.3     24.8     5.7
   23   2   0   2  23.375  46.749  1.94152     2823.6     22.5     22.1     5.7
   24   4   0   0  23.867  47.734  1.90375     1047.4      8.4      8.2     5.7
   25   4   1   0  24.426  48.853  1.86273      153.1      1.2      1.2     5.7
   26   2   2   2  25.59   51.18   1.78336      982.1      7.8      7.6     5.8
   27   1   3   2  26.01   52.021  1.75649      164.5      1.3      1.3     5.8
   28   4   0   1  26.048  52.096  1.75413      170.8      1.4      1.3     5.8
   29   4   1   1  26.574  53.147  1.72189      404.9      3.2      3.1     5.8
   30   3   4   0  27.184  54.369  1.68604      720.9      5.8      5.6     5.8
   31   0   5   1  27.37   54.74   1.6755       283.6      2.3      2.2     5.8
   32   1   5   1  28.082  56.163  1.63636     2327.1     18.6     18.0     5.8
   33   2   3   2  28.18   56.359  1.63113      293.2      2.3      2.3     5.8
   34   4   3   0  28.612  57.223  1.60854      155.9      1.2      1.2     5.8
   35   0   4   2  28.869  57.738  1.59541     1047.2      8.4      8.1     5.8
   36   3   2   2  29.181  58.361  1.57985     2797.7     22.3     21.6     5.8
   37   1   4   2  29.557  59.114  1.56151      781.1      6.2      6.0     5.8
   38   4   3   1  30.555  61.11   1.51521     1323.8     10.6     10.2     5.8
   39   0   6   0  30.815  61.63   1.50367      428.0      3.4      3.3     5.8
   40   5   1   0  30.859  61.717  1.50175      152.6      1.2      1.2     5.8
   41   0   1   3  31.265  62.53   1.48417      254.6      2.0      2.0     5.8
   42   1   6   0  31.477  62.954  1.47518      235.2      1.9      1.8     5.9
   43   2   4   2  31.566  63.132  1.47145      870.6      7.0      6.7     5.9
   44   1   1   3  31.922  63.844  1.45676      999.7      8.0      7.6     5.9
   45   4   0   2  31.96   63.92   1.45521     1427.7     11.4     10.9     5.9
   46   5   2   0  32.263  64.527  1.44298      787.8      6.3      6.0     5.9
   47   4   1   2  32.423  64.846  1.43664      127.5      1.0      1.0     5.9
   48   5   1   1  32.722  65.444  1.42496     1761.3     14.1     13.4     5.9
   49   3   5   1  33.426  66.851  1.39834     2974.8     23.7     22.6     5.9
   50   2   1   3  33.851  67.702  1.38282      840.1      6.7      6.4     5.9
   51   3   4   2  34.768  69.536  1.35076      693.6      5.5      5.3     5.9
   52   0   3   3  34.92   69.839  1.34564      951.8      7.6      7.2     5.9
   53   4   3   2  36.018  72.036  1.30991      157.1      1.3      1.2     5.9
   54   3   1   3  36.956  73.912  1.28123      897.8      7.2      6.7     6.0
   55   2   3   3  37.382  74.764  1.26873     1430.7     11.4     10.7     6.0
   56   5   4   0  37.609  75.218  1.2622       478.2      3.8      3.6     6.0
   57   0   6   2  37.991  75.983  1.25138      469.3      3.7      3.5     6.0
   58   5   1   2  38.031  76.062  1.25028      166.9      1.3      1.2     6.0
   59   0   7   1  38.428  76.856  1.23933      602.0      4.8      4.5     6.0
   60   1   6   2  38.594  77.188  1.23482      270.7      2.2      2.0     6.0
   61   4   4   2  39.045  78.09   1.2228       750.9      6.0      5.6     6.0
   62   6   0   1  39.083  78.167  1.22179      139.2      1.1      1.0     6.0
   63   5   2   2  39.315  78.63   1.21575     1051.2      8.4      7.8     6.0
   64   6   1   1  39.509  79.019  1.21074      345.4      2.8      2.6     6.0
   65   2   6   2  40.386  80.772  1.18882     1250.5     10.0      9.3     6.1
   66   4   6   0  40.752  81.504  1.17999      195.0      1.6      1.4     6.1
   67   2   7   1  40.816  81.631  1.17847      551.3      4.4      4.1     6.1
   68   1   5   3  42.392  84.783  1.14252      744.6      5.9      5.5     6.1
   69   4   6   1  42.432  84.865  1.14163      144.7      1.2      1.1     6.1
   70   6   3   1  42.882  85.765  1.13194      571.7      4.6      4.2     6.1
   71   0   0   4  43.045  86.09   1.1285       399.0      3.2      2.9     6.1
   72   5   5   1  43.117  86.233  1.12699      896.9      7.2      6.5     6.1
   73   3   6   2  43.336  86.673  1.1224       171.3      1.4      1.2     6.1
   74   1   8   0  43.668  87.335  1.11558      380.3      3.0      2.8     6.2
   75   3   7   1  43.761  87.523  1.11368      310.5      2.5      2.3     6.2
   76   6   0   2  44.13   88.261  1.10626      348.5      2.8      2.5     6.2
   77   5   4   2  44.364  88.728  1.10163      658.0      5.3      4.8     6.2
   78   4   3   3  44.506  89.013  1.09885      494.9      4.0      3.6     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)