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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HYDRONIUMJAROSITE

4, t-alunite, g-alunite

[H(3)O]Fe(3)[SO(4)](2)(OH)(6)


Hexagonal  R 3(-)m  Z = 3

R3(-)m

15 .1 .16

Ref.Str.:

         Plasil J., Skoda R., Fejfarova K., Cejka J., Kasatkin A.V.,

         Dusek M., Talla D. et al. (2014)

         * Mineral. Mag., 78, 535-547

         L: $H14.31 O14.77 Na0.2 K0.02 Fe2.949 Al0.03 S1.97 Si0.03$

         R: Locality - Cerros Pintados, Iquique Province, Chile.

         Single-crystal X-ray diffraction.

         H(3)O-cation occupies pos.1.    N.A.D.

                   Initial data from BDM-file 

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

             a =   7.3408   alpha =   90.0 
             b =   7.3408   beta  =   90.0 
             c =  17.0451   gamma =  120.0 

    Unit cell volume (cub. angs.) =   795.46

    Molar volume ( cub.cm/mol.) =   159.71

  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    O     = 0.77, Na    = 0.2 , K     = 0.02
   2 0.947   0.053   0.964    0.0    H     = 0.38, H     = 0.0 
   3 0.3333  0.1667  0.1667   0.0    Fe    = 0.98, Al    = 0.01
   4 0.6667  0.3333  0.0256   0.0    S     = 0.99, Si    = 0.01
   5 0.6667  0.3333  0.9399   0.0    O     = 1.00
   6 0.4472  0.2236  0.0549   0.0    O     = 1.00
   7 0.1273  0.2545  0.135    0.0    OH    = 1.00
   8 0.1752  0.35    0.1094   0.0    H     = 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     0.947      0.053      0.964 
     3       3     0.3333     0.1667     0.1667
     4       4     0.6667     0.3333     0.0256
     5       5     0.6667     0.3333     0.9399
     6       6     0.4472     0.2236     0.0549
     7       7     0.1273     0.2545     0.135 
     8       8     0.1752     0.35       0.1094
     9       2     0.947      0.894      0.964 
    10       2     0.106      0.053      0.964 
    11       3     0.8333     0.1666     0.1667
    12       3     0.8334     0.6667     0.1667
    13       6     0.7764     0.2236     0.0549
    14       6     0.7764     0.5528     0.0549
    15       7     0.7455     0.8728     0.135 
    16       7     0.1272     0.8727     0.135 
    17       8     0.65       0.8252     0.1094
    18       8     0.1748     0.8248     0.1094
    19       1     0.6667     0.3333     0.3333
    20       1     0.3333     0.6667     0.6667
    21       2     0.6137     0.2273     0.2973
    22       2     0.4393     0.7197     0.6307
    23       3     0.5        0.4999     0.5   
    24       3     0.1667     0.3334     0.8334
    25       4     0.3333     0.6667     0.3589
    26       4     0.0        0.0        0.6922
    27       5     0.3333     0.6667     0.2732
    28       5     0.0        0.0        0.6065
    29       6     0.443      0.5569     0.3883
    30       6     0.1098     0.2195     0.7216
    31       7     0.4122     0.2061     0.4684
    32       7     0.4606     0.5394     0.8017
    33       8     0.3167     0.1585     0.4427
    34       8     0.5081     0.4915     0.7761
    35       2     0.7727     0.3863     0.2973
    36       2     0.2803     0.7197     0.6307
    37       2     0.6137     0.3863     0.2973
    38       2     0.2803     0.5606     0.6307
    39       3     0.5001     0.0        0.5   
    40       3     0.6666     0.8334     0.8334
    41       3     0.0        0.5        0.5   
    42       3     0.1666     0.8333     0.8334
    43       6     0.4431     0.8861     0.3883
    44       6     0.7805     0.8903     0.7216
    45       6     0.1139     0.557      0.3883
    46       6     0.1097     0.8902     0.7216
    47       7     0.7939     0.2061     0.4684
    48       7     0.4606     0.9212     0.8017
    49       7     0.7939     0.5878     0.4684
    50       7     0.0788     0.5394     0.8017
    51       8     0.8415     0.1581     0.4427
    52       8     0.5085     0.0167     0.7761
    53       8     0.8419     0.6833     0.4427
    54       8     0.9833     0.4918     0.7761
    55       2     0.053      0.947      0.036 
    56       4     0.3333     0.6667     0.9744
    57       5     0.3333     0.6667     0.0601
    58       6     0.5528     0.7764     0.9451
    59       7     0.8727     0.7455     0.865 
    60       8     0.8248     0.65       0.8906
    61       2     0.053      0.106      0.036 
    62       2     0.894      0.947      0.036 
    63       6     0.2236     0.7764     0.9451
    64       6     0.2236     0.4472     0.9451
    65       7     0.2545     0.1272     0.865 
    66       7     0.8728     0.1273     0.865 
    67       8     0.35       0.1748     0.8906
    68       8     0.8252     0.1752     0.8906
    69       2     0.3863     0.7727     0.7027
    70       2     0.5607     0.2803     0.3693
    71       4     0.6667     0.3333     0.6411
    72       4     0.0        0.0        0.3078
    73       5     0.6667     0.3333     0.7268
    74       5     0.0        0.0        0.3935
    75       6     0.557      0.4431     0.6117
    76       6     0.8902     0.7805     0.2784
    77       7     0.5878     0.7939     0.5316
    78       7     0.5394     0.4606     0.1983
    79       8     0.6833     0.8415     0.5573
    80       8     0.4919     0.5085     0.2239
    81       2     0.2273     0.6137     0.7027
    82       2     0.7197     0.2803     0.3693
    83       2     0.3863     0.6137     0.7027
    84       2     0.7197     0.4394     0.3693
    85       6     0.5569     0.1139     0.6117
    86       6     0.2195     0.1097     0.2784
    87       6     0.8861     0.443      0.6117
    88       6     0.8903     0.1098     0.2784
    89       7     0.2061     0.7939     0.5316
    90       7     0.5394     0.0788     0.1983
    91       7     0.2061     0.4122     0.5316
    92       7     0.9212     0.4606     0.1983
    93       8     0.1585     0.8419     0.5573
    94       8     0.4915     0.9833     0.2239
    95       8     0.1581     0.3167     0.5573
    96       8     0.0167     0.5082     0.2239


X-ray density (g/cm cub.)   =      3.04

MU (1/cm) =     138.509    Mass attenuation coefficient (cm**2/g) =     45.559

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

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

    1   O    ,Na   ,K        3.312       12
                                                 2.9933       6
                                                 2.8135       7
                                                 2.9932       6
                                                 2.9933       6
                                                 2.8135       7
                                                 2.8136       7
                                                 2.9933       6
                                                 2.8135       7
                                                 2.9932       6
                                                 2.9933       6
                                                 2.8135       7
                                                 2.8136       7
    2   H    ,H              1.68         1
                                                 0.9114       1
    3   Fe   ,Al             2.64         6
                                                 2.0379       6
                                                 1.9923       7
                                                 1.9929       7
                                                 1.9924       7
                                                 2.0368       6
                                                 1.9928       7
    4   S    ,Si             2.148        4
                                                 1.4606       5
                                                 1.4824       6
                                                 1.4824       6
                                                 1.4824       6
    5    O                   3.312        6
                                                 2.407        6
                                                 2.407        6
                                                 2.407        6
                                                 2.9148       7
                                                 2.9148       7
                                                 2.9147       7
    6    O                   3.312        8
                                                 2.9933       1
                                                 2.407        5
                                                 2.822        7
                                                 2.4166       6
                                                 2.4166       6
                                                 2.8223       7
                                                 2.8771       7
                                                 2.8772       7
    7    OH                  3.36        10
                                                 2.8135       1
                                                 2.822        6
                                                 2.8223       6
                                                 2.8024       7
                                                 2.8024       7
                                                 2.9148       5
                                                 2.8335       7
                                                 2.8772       6
                                                 2.8771       6
                                                 2.8335       7
    8    H                   1.68         1
                                                 0.7481       7

  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  8.636  17.273   0.084   85.76    6       58.2      275.0
    2   0   0   3  9.058  18.115   0.088   77.77    2      139.4      477.7
    3   1   0  -2 10.11   20.219   0.098   62.0     6      145.5     1244.5
    4   1   1   0 14.105  28.21    0.136   30.84    6       56.0       91.6
    5   1   0   4 14.637  29.274   0.141   28.5     6       59.1       94.4
    6   2   0  -1 16.633  33.267   0.16    21.64    6      244.3     1225.0
    7   1   1   3 16.865  33.731   0.162   21.0    12      184.7     1358.8
    8   1   0  -5 17.321  34.642   0.166   19.82    6       45.3       38.5
    9   2   0   2 17.477  34.955   0.168   19.43    6       82.2      124.5
   10   0   0   6 18.352  36.704   0.176   17.46    2      205.3      232.5
   11   2   0  -4 20.552  41.104   0.196   13.59    6      153.5      303.4
   12   2   1   1 22.082  44.164   0.21    11.57   12       23.2       11.8
   13   2   0   5 22.628  45.256   0.215   10.95    6       58.5       35.5
   14   2   1  -2 22.753  45.506   0.216   10.81   12       20.6        8.7
   15   1   0   7 23.163  46.327   0.22    10.38    6      209.7      432.9
   16   1   1   6 23.462  46.925   0.223   10.08   12       27.6       14.6
   17   3   0   0 24.967  49.934   0.236    8.76    6       36.6       11.1
   18   2   1   4 25.3    50.599   0.239    8.5    12       21.7        7.6
   19   1   0  -8 26.28   52.56    0.248    7.79    6       40.9       12.4
   20   3   0  -3 26.775  53.551   0.252    7.47    6      248.9      438.8
   21   3   0   3 26.775  53.551   0.252    7.47    6       47.1       15.7
   22   2   1  -5 27.092  54.185   0.255    7.27   12       16.6        3.8
   23   2   0  -7 27.563  55.126   0.259    6.99    6      165.2      180.9
   24   0   0   9 28.183  56.365   0.264    6.65    2      221.5      103.1
   25   2   2   0 29.169  58.338   0.272    6.15    6      291.7      496.2
   26   2   0   8 30.357  60.715   0.283    5.62    6      120.2       77.0
   27   3   1  -1 30.664  61.328   0.285    5.5    12        4.4        0.2
   28   2   2   3 30.809  61.619   0.286    5.44   12      106.7      117.5
   29   3   1   2 31.201  62.401   0.29     5.29   12       91.5       84.0
   30   2   1   7 31.532  63.064   0.292    5.17   12       50.3       24.8
   31   3   0  -6 31.775  63.551   0.294    5.08    6       10.0        0.5
   32   3   0   6 31.775  63.551   0.294    5.08    6       18.1        1.6
   33   1   1   9 32.104  64.207   0.297    4.97   12       40.8       15.7
   34   1   0  10 32.908  65.816   0.304    4.71    6        6.7        0.2
   35   3   1  -4 33.299  66.597   0.307    4.6    12       96.2       80.6
   36   2   1  -8 34.13   68.261   0.314    4.36   12      109.6       99.3
   37   4   0   1 34.418  68.837   0.316    4.29    6      141.2       81.1
   38   3   1   5 34.829  69.658   0.319    4.19   12       84.5       56.6
   39   4   0  -2 34.924  69.849   0.32     4.16    6      152.1       91.3
   40   2   2   6 35.468  70.936   0.324    4.04   12      178.6      244.3
   41   1   0 -11 36.451  72.902   0.332    3.83    6       14.7        0.8
   42   2   0 -10 36.545  73.089   0.333    3.81    6      300.4      325.8
   43   4   0   4 36.917  73.834   0.336    3.74    6      163.2       94.3
   44   3   2   1 37.99   75.981   0.344    3.55   12       57.8       22.4
   45   4   0  -5 38.385  76.771   0.347    3.48    6      134.7       59.9
   46   3   2  -2 38.477  76.954   0.348    3.47   12      100.4       66.3
   47   3   1  -7 38.779  77.559   0.35     3.42   12       82.0       43.6
   48   0   0  12 39.029  78.058   0.352    3.39    2       43.7        2.0
   49   3   0  -9 39.303  78.605   0.354    3.35    6      116.1       42.8
   50   3   0   9 39.303  78.605   0.354    3.35    6       16.6        0.9
   51   2   0  11 39.954  79.908   0.359    3.26    6      153.2       72.6
   52   2   1  10 40.045  80.089   0.36     3.25   12       12.5        1.0
   53   4   1   0 40.148  80.295   0.36     3.24   12       34.5        7.3
   54   3   2   4 40.407  80.814   0.362    3.21   12       64.6       25.3
   55   3   1   8 41.183  82.367   0.368    3.12   12       44.5       11.7
   56   4   1  -3 41.583  83.165   0.371    3.08   12       98.2       56.3
   57   4   1   3 41.583  83.165   0.371    3.08   12      116.2       78.9
   58   3   2  -5 41.84   83.681   0.373    3.05   12       23.3        3.1
   59   4   0   7 42.226  84.453   0.376    3.02    6      143.0       58.5
   60   1   1  12 42.471  84.943   0.377    3.0    12       46.0       12.0
   61   2   2   9 42.74   85.481   0.379    2.97   12      118.9       79.8
   62   2   1 -11 43.382  86.764   0.384    2.93   12        0.9        0.0
   63   1   0  13 44.151  88.301   0.389    2.88    6       94.1       24.2
   64   4   0  -8 44.597  89.195   0.392    2.85    6       54.7        8.1
   65   5   0  -1 44.865  89.731   0.394    2.84    6        5.4        0.1


  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   8.636  17.273  5.95651      275.0     20.2     20.5     5.6
    2   0   0   3   9.058  18.115  5.6817       477.7     35.2     35.6     5.6
    3   1   0   2  10.11   20.219  5.09577     1244.5     91.6     92.6     5.6
    4   1   1   0  14.105  28.21   3.6704        91.6      6.7      6.8     5.6
    5   1   0   4  14.637  29.274  3.53966       94.4      6.9      7.0     5.6
    6   2   0   1  16.633  33.267  3.12479     1225.0     90.2     90.2     5.6
    7   1   1   3  16.865  33.731  3.08304     1358.8    100.0    100.0     5.7
    8   1   0   5  17.321  34.642  3.00433       38.5      2.8      2.8     5.7
    9   2   0   2  17.477  34.955  2.97825      124.5      9.2      9.2     5.7
   10   0   0   6  18.352  36.704  2.84085      232.5     17.1     17.1     5.7
   11   2   0   4  20.552  41.104  2.54788      303.4     22.3     22.2     5.7
   12   2   0   5  22.628  45.256  2.32483       35.5      2.6      2.6     5.7
   13   1   0   7  23.163  46.327  2.27392      432.9     31.9     31.5     5.7
   14   1   1   6  23.462  46.925  2.24655       14.6      1.1      1.1     5.7
   15   3   0   3  26.775  53.551  1.9855       454.5     33.4     32.7     5.8
   16   2   0   7  27.563  55.126  1.93302      180.9     13.3     13.0     5.8
   17   0   0   9  28.183  56.365  1.8939       103.1      7.6      7.4     5.8
   18   2   2   0  29.169  58.338  1.8352       496.2     36.5     35.5     5.8
   19   2   0   8  30.357  60.715  1.76983       77.0      5.7      5.5     5.8
   20   2   2   3  30.809  61.619  1.74636      117.5      8.6      8.4     5.8
   21   3   1   2  31.201  62.401  1.72664       84.0      6.2      6.0     5.8
   22   2   1   7  31.532  63.064  1.71033       24.8      1.8      1.8     5.9
   23   1   1   9  32.104  64.207  1.68305       15.7      1.2      1.1     5.9
   24   3   1   4  33.299  66.597  1.62924       80.6      5.9      5.7     5.9
   25   2   1   8  34.13   68.261  1.59418       99.3      7.3      7.0     5.9
   26   4   0   1  34.418  68.837  1.58247       81.1      6.0      5.7     5.9
   27   3   1   5  34.829  69.658  1.56612       56.6      4.2      4.0     5.9
   28   4   0   2  34.924  69.849  1.56239       91.3      6.7      6.4     5.9
   29   2   2   6  35.468  70.936  1.54152      244.3     18.0     17.1     5.9
   30   2   0  10  36.545  73.089  1.50217      325.8     24.0     22.8     6.0
   31   4   0   4  36.917  73.834  1.48913       94.3      6.9      6.6     6.0
   32   3   2   1  37.99   75.981  1.45316       22.4      1.7      1.6     6.0
   33   4   0   5  38.385  76.771  1.44047       59.9      4.4      4.2     6.0
   34   3   2   2  38.477  76.954  1.43757       66.3      4.9      4.6     6.0
   35   3   1   7  38.779  77.559  1.42812       43.6      3.2      3.0     6.0
   36   3   0   9  39.303  78.605  1.41212       43.7      3.2      3.0     6.0
   37   2   0  11  39.954  79.908  1.39287       72.6      5.3      5.0     6.0
   38   3   2   4  40.407  80.814  1.37988       25.3      1.9      1.7     6.1
   39   4   1   3  41.583  83.165  1.34769      135.1      9.9      9.2     6.1
   40   4   0   7  42.226  84.453  1.33092       58.5      4.3      4.0     6.1
   41   2   2   9  42.74   85.481  1.31795       79.8      5.9      5.4     6.1
   42   1   0  13  44.151  88.301  1.28413       24.2      1.8      1.6     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)