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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ARSENOGORCEIXITE

1, t-alunite, DN

BaAl(3)H[AsO(4)](2)(OH)(6)


Hexagonal  R 3(-)m  Z = 3

R3(-)m

10 .12 .96

Ref.Str.:

         Author (1996)

         * Amer. Mineral., 81, 249-254

         R: The coordinates of atoms are considered to equal to those of crandallite.

         D.T.N.

                   Initial data from BDM-file 

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

             a =   7.1      alpha =   90.0 
             b =   7.1      beta  =   90.0 
             c =  16.192    gamma =  120.0 

    Unit cell volume (cub. angs.) =   706.88

    Molar volume ( cub.cm/mol.) =   141.93

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

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

   1 0.049   0.0     0.0      0.0    Ba    = 0.17, Ba    = 0.0 
   2 0.0     0.0     0.3137   0.0    As    = 1.00
   3 0.5     0.0     0.5      0.0    Al    = 1.00
   4 0.0     0.0     0.4076   0.0    O     = 1.00
   5 0.2142  0.7858  0.9471   0.0    O     = 1.00
   6 0.1237  0.8763  0.1353   0.0    O     = 1.00


  Co-ordinates for all atomic positions :

   No       NoP      x/a        y/b       z/c 

     1       1     0.049      0.0        0.0   
     2       2     0.0        0.0        0.3137
     3       3     0.5        0.0        0.5   
     4       4     0.0        0.0        0.4076
     5       5     0.2142     0.7858     0.9471
     6       6     0.1237     0.8763     0.1353
     7       1     0.0        0.049      0.0   
     8       1     0.951      0.951      0.0   
     9       3     0.0        0.5        0.5   
    10       3     0.5        0.5        0.5   
    11       5     0.2142     0.4284     0.9471
    12       5     0.5716     0.7858     0.9471
    13       6     0.1237     0.2474     0.1353
    14       6     0.7526     0.8763     0.1353
    15       1     0.6667     0.3823     0.3333
    16       1     0.2843     0.6177     0.6667
    17       2     0.6667     0.3333     0.647 
    18       2     0.3333     0.6667     0.9804
    19       3     0.6667     0.8333     0.8333
    20       3     0.8333     0.1667     0.1667
    21       4     0.6667     0.3333     0.7409
    22       4     0.3333     0.6667     0.0743
    23       5     0.8809     0.7617     0.2804
    24       5     0.9049     0.4525     0.6138
    25       6     0.7904     0.5807     0.4686
    26       6     0.0859     0.543      0.802 
    27       1     0.6177     0.2843     0.3333
    28       1     0.3823     0.6667     0.6667
    29       1     0.7157     0.3333     0.3333
    30       1     0.3333     0.7157     0.6667
    31       3     0.1667     0.8333     0.8333
    32       3     0.8333     0.6667     0.1667
    33       3     0.1667     0.3333     0.8333
    34       3     0.3333     0.1666     0.1667
    35       5     0.2383     0.1191     0.2804
    36       5     0.5475     0.4525     0.6138
    37       5     0.8809     0.1191     0.2804
    38       5     0.5475     0.0951     0.6138
    39       6     0.4193     0.2096     0.4686
    40       6     0.457      0.543      0.802 
    41       6     0.7904     0.2096     0.4686
    42       6     0.457      0.9141     0.802 
    43       1     0.049      0.049      0.0   
    44       1     0.0        0.951      0.0   
    45       1     0.951      0.0        0.0   
    46       1     0.6667     0.2843     0.3333
    47       1     0.2843     0.6667     0.6667
    48       1     0.6177     0.3333     0.3333
    49       1     0.3823     0.7157     0.6667
    50       1     0.7157     0.3823     0.3333
    51       1     0.3333     0.6177     0.6667
    52       2     0.0        0.0        0.6863
    53       4     0.0        0.0        0.5924
    54       5     0.7858     0.2142     0.0529
    55       6     0.8763     0.1237     0.8647
    56       5     0.7858     0.5716     0.0529
    57       5     0.4284     0.2142     0.0529
    58       6     0.8763     0.7526     0.8647
    59       6     0.2474     0.1237     0.8647
    60       2     0.3333     0.6667     0.353 
    61       2     0.6667     0.3333     0.0196
    62       4     0.3333     0.6667     0.2591
    63       4     0.6667     0.3333     0.9257
    64       5     0.1191     0.2383     0.7196
    65       5     0.0951     0.5475     0.3862
    66       6     0.2096     0.4193     0.5314
    67       6     0.9141     0.457      0.198 
    68       5     0.7617     0.8809     0.7196
    69       5     0.4525     0.5475     0.3862
    70       5     0.1191     0.8809     0.7196
    71       5     0.4525     0.9049     0.3862
    72       6     0.5807     0.7904     0.5314
    73       6     0.543      0.457      0.198 
    74       6     0.2096     0.7904     0.5314
    75       6     0.543      0.0859     0.198 


X-ray density (g/cm cub.)   =      4.17

MU (1/cm) =     453.836    Mass attenuation coefficient (cm**2/g) =    108.746

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

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

    1   Ba   ,Ba             3.288       12
                                                 2.4912       5
                                                 2.5136       6
                                                 2.7916       5
                                                 3.0627       5
                                                 2.6897       6
                                                 2.855        6
                                                 3.0628       5
                                                 2.855        6
                                                 2.7916       5
                                                 2.4912       5
                                                 2.6897       6
                                                 2.5135       6
    2    As                  2.46         4
                                                 1.5204       4
                                                 1.561        5
                                                 1.561        5
                                                 1.561        5
    3    Al                  2.316        6
                                                 1.9325       5
                                                 1.9118       6
                                                 1.9118       6
                                                 1.9325       5
                                                 1.9118       6
                                                 1.9118       6
    4    O                   3.264        7
                                                 2.5271       5
                                                 2.7609       6
                                                 2.5271       5
                                                 2.5272       5
                                                 2.7609       6
                                                 2.761        6
                                                 2.9923       4
    5    O                   3.264       10
                                                 3.2442       6
                                                 2.5376       5
                                                 2.5376       5
                                                 2.527        4
                                                 2.7848       6
                                                 2.7847       6
                                                 3.1422       5
                                                 3.1422       5
                                                 2.6507       6
                                                 2.6507       6
    6    O                   3.264       10
                                                 3.2442       5
                                                 2.6347       6
                                                 2.6347       6
                                                 2.761        4
                                                 2.7846       5
                                                 2.7846       5
                                                 2.6506       5
                                                 2.6506       5
                                                 2.7709       6
                                                 2.771        6

  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   0   1  7.701  15.402   0.087  108.43    6      107.4     1501.6
    2   0   0   3  8.205  16.41    0.093   95.25    2      182.6     1271.6
    3   1   0  -2  9.051  18.101   0.102   77.89    6       41.9      164.4
    4   1   1   0 12.532  25.063   0.141   39.61    6      278.5     3688.4
    5   1   0   4 13.169  26.338   0.148   35.68    6       76.1      248.4
    6   2   0  -1 14.775  29.55    0.166   27.94    6       93.6      294.2
    7   1   1   3 15.053  30.105   0.169   26.84   12      314.8     6389.6
    8   2   0   2 15.546  31.091   0.174   25.05    6       48.3       70.1
    9   1   0  -5 15.595  31.189   0.175   24.88    6       37.6       42.3
   10   0   0   6 16.585  33.169   0.185   21.78    2      297.1      769.6
   11   2   0  -4 18.338  36.675   0.204   17.49    6      121.1      308.0
   12   2   1   1 19.563  39.126   0.217   15.16   12       38.2       53.0
   13   2   1  -2 20.171  40.343   0.224   14.16   12       80.0      217.8
   14   2   0   5 20.211  40.421   0.224   14.1     6       51.9       45.6
   15   1   0   7 20.842  41.683   0.231   13.17    6      304.2     1463.4
   16   1   1   6 21.011  42.021   0.233   12.93   12      161.9      814.4
   17   3   0   0 22.075  44.15    0.244   11.57    6      148.7      307.3
   18   2   1   4 22.469  44.938   0.248   11.12   12       90.5      218.6
   19   1   0  -8 23.62   47.239   0.26     9.93    6       17.8        3.8
   20   3   0  -3 23.704  47.407   0.261    9.85    6      356.0     1499.7
   21   3   0   3 23.704  47.407   0.261    9.85    6      159.2      300.0
   22   2   1  -5 24.077  48.153   0.265    9.51   12        1.0        0.0
   23   2   0  -7 24.628  49.257   0.271    9.03    6       35.7       13.8
   24   0   0   9 25.35   50.7     0.278    8.46    2       24.7        2.1
   25   2   2   0 25.719  51.438   0.282    8.18    6      349.2     1198.5
   26   3   1  -1 27.012  54.024   0.295    7.32   12       11.8        2.4
   27   2   0   8 27.106  54.213   0.296    7.26    6       39.6       13.7
   28   2   2   3 27.182  54.365   0.297    7.22   12      116.2      234.0
   29   3   1   2 27.49   54.98    0.3      7.03   12       67.0       75.9
   30   2   1   7 28.024  56.047   0.305    6.73   12      124.4      250.0
   31   3   0  -6 28.159  56.318   0.306    6.66    6      133.0      141.5
   32   3   0   6 28.159  56.318   0.306    6.66    6      130.7      136.6
   33   1   1   9 28.685  57.369   0.312    6.39   12      173.5      461.5
   34   3   1  -4 29.349  58.698   0.318    6.06   12        5.0        0.4
   35   1   0  10 29.468  58.936   0.319    6.01    6      161.9      189.2
   36   4   0   1 30.222  60.443   0.327    5.68    6       77.8       41.3
   37   2   1  -8 30.309  60.619   0.328    5.64   12      101.6      139.8
   38   4   0  -2 30.667  61.334   0.331    5.5     6       83.6       46.1
   39   3   1   5 30.696  61.392   0.331    5.49   12       42.9       24.2
   40   2   2   6 31.293  62.586   0.337    5.26   12      211.7      566.1
   41   4   0   4 32.412  64.825   0.348    4.87    6      122.3       87.5
   42   2   0 -10 32.525  65.049   0.349    4.83    6      335.0      651.1
   43   1   0 -11 32.553  65.105   0.349    4.82    6       18.3        1.9
   44   3   2   1 33.238  66.477   0.356    4.61   12       34.3       13.0
   45   3   2  -2 33.661  67.323   0.36     4.49   12       94.3       95.9
   46   4   0  -5 33.689  67.378   0.36     4.48    6       80.9       35.2
   47   3   1  -7 34.136  68.273   0.364    4.36   12      131.7      181.8
   48   3   0  -9 34.729  69.458   0.37     4.21    6      218.3      241.0
   49   3   0   9 34.729  69.458   0.37     4.21    6      107.1       58.0
   50   0   0  12 34.81   69.62    0.371    4.19    2      111.3       20.8
   51   4   1   0 35.035  70.07    0.373    4.14   12      161.3      258.5
   52   3   2   4 35.328  70.657   0.375    4.07   12        2.2        0.0
   53   2   1  10 35.436  70.872   0.376    4.04   12      108.8      114.9
   54   2   0  11 35.463  70.926   0.377    4.04    6       86.6       36.4
   55   3   1   8 36.202  72.404   0.383    3.88   12       61.2       34.8
   56   4   1  -3 36.267  72.534   0.384    3.86   12      156.2      226.5
   57   4   1   3 36.267  72.534   0.384    3.86   12      196.5      358.4
   58   3   2  -5 36.556  73.112   0.387    3.81   12       72.0       47.3
   59   4   0   7 36.988  73.977   0.391    3.72    6        2.5        0.0
   60   2   2   9 37.562  75.123   0.396    3.62   12       35.6       11.0
   61   1   1  12 37.641  75.281   0.396    3.6    12      101.0       88.2
   62   2   1 -11 38.274  76.548   0.402    3.5    12       36.1       10.9
   63   5   0  -1 38.915  77.831   0.408    3.4     6       10.6        0.5
   64   4   0  -8 38.993  77.987   0.408    3.39    6       21.8        1.9
   65   1   0  13 39.123  78.247   0.41     3.37    6      193.5      151.5
   66   5   0   2 39.313  78.625   0.411    3.35    6       23.5        2.2
   67   3   2   7 39.761  79.521   0.415    3.29   12      191.0      287.9
   68   4   1  -6 39.875  79.751   0.416    3.27   12       90.8       64.8
   69   4   1   6 39.875  79.751   0.416    3.27   12       81.0       51.5
   70   3   3   0 40.613  81.225   0.423    3.18    6      226.9      196.7
   71   5   0  -4 40.892  81.784   0.425    3.15    6       40.5        6.2
   72   3   1 -10 40.995  81.989   0.426    3.14   12      159.9      192.6
   73   4   2  -1 41.651  83.302   0.431    3.07   12       77.4       44.2
   74   3   2  -8 41.728  83.455   0.432    3.06   12       47.7       16.7
   75   3   3   3 41.79   83.58    0.433    3.06   12      142.1      148.2
   76   2   0 -13 41.856  83.711   0.433    3.05    6      111.3       45.4
   77   4   2   2 42.042  84.085   0.435    3.03   12        2.1        0.0
   78   5   0   5 42.068  84.136   0.435    3.03    6       54.6       10.9
   79   1   0 -14 42.663  85.326   0.44     2.98    6       24.0        2.1
   80   3   0 -12 43.115  86.23    0.444    2.95    6       44.3        6.9
   81   3   0  12 43.115  86.23    0.444    2.95    6      162.4       93.3
   82   4   2  -4 43.603  87.206   0.448    2.91   12       72.9       37.1
   83   4   0  10 43.705  87.41    0.449    2.9     6      185.3      119.7
   84   3   1  11 43.73   87.46    0.449    2.9    12       31.1        6.7
   85   5   1   1 44.356  88.712   0.454    2.86   12       28.3        5.5
   86   2   1  13 44.559  89.119   0.455    2.85   12      192.0      252.5
   87   5   1  -2 44.745  89.49    0.457    2.84   12       81.2       45.0
   88   4   2   5 44.77   89.541   0.457    2.84   12      137.4      128.7


  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   1   0   1   7.701  15.402  5.74827     1501.6     23.5     23.8     5.6
    2   0   0   3   8.205  16.41   5.39733     1271.6     19.9     20.1     5.6
    3   1   0   2   9.051  18.101  4.89664      164.4      2.6      2.6     5.6
    4   1   1   0  12.532  25.063  3.55        3688.4     57.7     58.0     5.6
    5   1   0   4  13.169  26.338  3.38107      248.4      3.9      3.9     5.6
    6   2   0   1  14.775  29.55   3.02043      294.2      4.6      4.6     5.6
    7   1   1   3  15.053  30.105  2.96595     6389.6    100.0    100.0     5.6
    8   2   0   2  15.546  31.091  2.87414       70.1      1.1      1.1     5.6
    9   0   0   6  16.585  33.169  2.69867      769.6     12.0     12.0     5.6
   10   2   0   4  18.338  36.675  2.44832      308.0      4.8      4.8     5.7
   11   2   1   2  20.171  40.343  2.23381      217.8      3.4      3.4     5.7
   12   1   0   7  20.842  41.683  2.16501     1463.4     22.9     22.7     5.7
   13   1   1   6  21.011  42.021  2.14838      814.4     12.7     12.6     5.7
   14   3   0   0  22.075  44.15   2.04959      307.3      4.8      4.7     5.7
   15   2   1   4  22.469  44.938  2.01548      218.6      3.4      3.4     5.7
   16   3   0   3  23.704  47.407  1.91609     1799.7     28.2     27.7     5.7
   17   2   2   0  25.719  51.438  1.775       1198.5     18.8     18.4     5.8
   18   2   2   3  27.182  54.365  1.68616      234.0      3.7      3.6     5.8
   19   3   1   2  27.49   54.98   1.66875       75.9      1.2      1.2     5.8
   20   2   1   7  28.024  56.047  1.63947      250.0      3.9      3.8     5.8
   21   3   0   6  28.159  56.318  1.63221      278.1      4.4      4.2     5.8
   22   1   1   9  28.685  57.369  1.60479      461.5      7.2      7.0     5.8
   23   1   0  10  29.468  58.936  1.56582      189.2      3.0      2.9     5.8
   24   2   1   8  30.309  60.619  1.52631      139.8      2.2      2.1     5.8
   25   4   0   2  30.667  61.334  1.51021       70.3      1.1      1.1     5.8
   26   2   2   6  31.293  62.586  1.48298      566.1      8.9      8.5     5.8
   27   4   0   4  32.412  64.825  1.43707       87.5      1.4      1.3     5.9
   28   2   0  10  32.525  65.049  1.43265      653.1     10.2      9.8     5.9
   29   3   2   2  33.661  67.323  1.38969      131.2      2.1      2.0     5.9
   30   3   1   7  34.136  68.273  1.37265      181.8      2.8      2.7     5.9
   31   3   0   9  34.729  69.458  1.3521       299.0      4.7      4.5     5.9
   32   4   1   0  35.035  70.07   1.34177      258.5      4.0      3.8     5.9
   33   2   1  10  35.436  70.872  1.32854      151.3      2.4      2.2     5.9
   34   4   1   3  36.267  72.534  1.30214      584.9      9.2      8.7     5.9
   35   1   1  12  37.641  75.281  1.2613        88.2      1.4      1.3     6.0
   36   1   0  13  39.123  78.247  1.22074      151.5      2.4      2.2     6.0
   37   3   2   7  39.761  79.521  1.20435      287.9      4.5      4.2     6.0
   38   4   1   6  39.875  79.751  1.20146      116.3      1.8      1.7     6.0
   39   3   3   0  40.613  81.225  1.18333      196.7      3.1      2.9     6.1
   40   3   1  10  40.995  81.989  1.17423      192.6      3.0      2.8     6.1
   41   3   3   3  41.79   83.58   1.15588      148.2      2.3      2.1     6.1
   42   3   0  12  43.115  86.23   1.12702      100.2      1.6      1.4     6.1
   43   4   0  10  43.705  87.41   1.11482      126.5      2.0      1.8     6.2
   44   2   1  13  44.559  89.119  1.09781      252.5      4.0      3.6     6.2
   45   4   2   5  44.77   89.541  1.09373      173.7      2.7      2.5     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)