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       ***
                  ***********************
LIPSCOMBITE

2, syn, DN

(Fe'',Fe''')(2)[PO(4)](2)(OH)(2)


Tetragonal  P 4(3)2(1)2  Z = 4

R =0.102          NR =300

11 .3 .1990

Ref.Str.:

         I. Vengato, E. Mattievich, Y.P. Mascarenhas (1989)

         * Amer. Mineral., 74, 456-460

                   Initial data from BDM-file 

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

             a =   7.31     alpha =   90.0 
             b =   7.31     beta  =   90.0 
             c =  13.212    gamma =   90.0 

    Unit cell volume (cub. angs.) =   706.0 

    Molar volume ( cub.cm/mol.) =   106.31

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

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

   1 0.368   0.368   0.0      0.0    Fe    = 0.39, Fe    = 0.0 
   2 0.138   0.138   0.5      0.0    Fe    = 0.08, Fe    = 0.0 
   3 0.1489  0.3821  0.2458   0.0    Fe    = 1.00
   4 0.257   0.9999  0.124    0.0    P     = 1.00
   5 0.386   0.112   0.053    0.0    O     = 1.00
   6 0.134   0.129   0.184    0.0    O     = 1.00
   7 0.138   0.868   0.062    0.0    O     = 1.00
   8 0.372   0.887   0.193    0.0    O     = 1.00
   9 0.012   0.235   0.373    0.0    H     = 1.00


  Co-ordinates for all atomic positions :

   No       NoP      x/a        y/b       z/c 

     1       1     0.368      0.368      0.0   
     2       2     0.138      0.138      0.5   
     3       3     0.1489     0.3821     0.2458
     4       4     0.257      0.9999     0.124 
     5       5     0.386      0.112      0.053 
     6       6     0.134      0.129      0.184 
     7       7     0.138      0.868      0.062 
     8       8     0.372      0.887      0.193 
     9       9     0.012      0.235      0.373 
    10       3     0.3821     0.1489     0.7542
    11       4     0.0        0.257      0.876 
    12       5     0.112      0.386      0.947 
    13       6     0.129      0.134      0.816 
    14       7     0.868      0.138      0.938 
    15       8     0.887      0.372      0.807 
    16       9     0.235      0.012      0.627 
    17       1     0.132      0.868      0.75  
    18       1     0.632      0.632      0.5   
    19       1     0.868      0.132      0.25  
    20       2     0.362      0.638      0.25  
    21       2     0.862      0.862      0.0   
    22       2     0.638      0.362      0.75  
    23       3     0.1179     0.6489     0.9958
    24       3     0.8511     0.6179     0.7458
    25       3     0.8821     0.3511     0.4958
    26       4     0.5001     0.757      0.874 
    27       4     0.743      0.0001     0.624 
    28       4     0.4999     0.243      0.374 
    29       5     0.388      0.886      0.803 
    30       5     0.614      0.888      0.553 
    31       5     0.612      0.114      0.303 
    32       6     0.371      0.634      0.934 
    33       6     0.866      0.871      0.684 
    34       6     0.629      0.366      0.434 
    35       7     0.632      0.638      0.812 
    36       7     0.862      0.132      0.562 
    37       7     0.368      0.362      0.312 
    38       8     0.613      0.872      0.943 
    39       8     0.628      0.113      0.693 
    40       8     0.387      0.128      0.443 
    41       9     0.265      0.512      0.123 
    42       9     0.988      0.765      0.873 
    43       9     0.735      0.488      0.623 
    44       3     0.3511     0.8821     0.5042
    45       3     0.6179     0.8511     0.2542
    46       3     0.6489     0.1179     0.0042
    47       4     0.243      0.5        0.626 
    48       4     0.0        0.743      0.376 
    49       4     0.757      0.5        0.126 
    50       5     0.114      0.612      0.697 
    51       5     0.888      0.614      0.447 
    52       5     0.886      0.388      0.197 
    53       6     0.366      0.629      0.566 
    54       6     0.871      0.866      0.316 
    55       6     0.634      0.371      0.066 
    56       7     0.362      0.368      0.688 
    57       7     0.132      0.862      0.438 
    58       7     0.638      0.632      0.188 
    59       8     0.128      0.387      0.557 
    60       8     0.113      0.628      0.307 
    61       8     0.872      0.613      0.057 
    62       9     0.488      0.735      0.377 
    63       9     0.765      0.988      0.127 
    64       9     0.512      0.265      0.877 
    65       4     0.257      0.0        0.124 


X-ray density (g/cm cub.)   =      3.18

MU (1/cm) =     164.742    Mass attenuation coefficient (cm**2/g) =     51.852

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

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

    1   Fe   ,Fe             2.592        4
                                                 2.0024       5
                                                 2.0024       5
                                                 2.1311       6
                                                 2.1311       6
    2   Fe   ,Fe             2.592        4
                                                 2.178        7
                                                 1.9712       8
                                                 2.178        7
                                                 1.9712       8
    3    Fe                  2.592        4
                                                 2.0252       6
                                                 1.8308       7
                                                 2.0275       5
                                                 1.9884       8
    4    P                   2.232        4
                                                 1.5623       5
                                                 1.5256       6
                                                 1.5354       7
                                                 1.4896       8
    5    O                   3.264        6
                                                 2.5307       6
                                                 2.546        7
                                                 2.4773       8
                                                 3.1599       5
                                                 2.8184       8
                                                 2.6269       6
    6    O                   3.264        6
                                                 2.5307       5
                                                 2.4978       7
                                                 2.484        8
                                                 2.9474       7
                                                 2.6269       5
                                                 3.2301       6
    7    O                   3.264        6
                                                 2.546        5
                                                 2.4978       6
                                                 2.4374       8
                                                 3.2365       7
                                                 2.9474       6
                                                 2.6944       8
    8    O                   3.264        6
                                                 2.4773       5
                                                 2.484        6
                                                 2.4374       7
                                                 2.8184       5
                                                 2.6944       7
                                                 3.0721       8
    9    H                   1.632        0

  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  8.039  16.077   0.078   99.33    8       16.3       42.5
    2   1   1   0  9.965  19.93    0.097   63.87    4       80.8      334.5
    3   1   0   2 10.515  21.031   0.102   57.14    8       19.3       34.2
    4   1   1   1 10.709  21.418   0.104   55.02    8       12.4       13.6
    5   1   1   2 12.693  25.385   0.123   38.56    8       67.1      279.0
    6   1   0   3 13.716  27.432   0.133   32.73    8       12.2        7.8
    7   2   0   0 14.165  28.331   0.137   30.56    4       34.5       29.2
    8   2   0   1 14.709  29.418   0.142   28.2     8       91.1      375.5
    9   1   1   3 15.475  30.951   0.149   25.29    8      266.8     2889.6
   10   0   0   4 15.712  31.424   0.151   24.48    2      119.9      141.1
   11   2   1   0 15.879  31.758   0.153   23.93    8       23.3       20.8
   12   2   0   2 16.241  32.483   0.156   22.79    8      116.1      492.9
   13   2   1   1 16.371  32.742   0.158   22.4    16       15.9       18.1
   14   1   0   4 17.287  34.575   0.166   19.9     8       25.2       20.2
   15   2   1   2 17.775  35.55    0.171   18.73   16       28.2       47.8
   16   2   0   3 18.543  37.087   0.178   17.07    8       87.4      209.5
   17   1   1   4 18.746  37.492   0.18    16.66    8       63.6      108.3
   18   2   1   3 19.923  39.845   0.19    14.56   16       19.8       18.3
   19   2   2   0 20.248  40.497   0.193   14.04    4      100.7      114.3
   20   2   2   1 20.649  41.299   0.197   13.44    8       35.0       26.4
   21   1   0   5 21.096  42.193   0.201   12.81    8       20.2        8.4
   22   2   0   4 21.407  42.815   0.204   12.4     8        8.0        1.3
   23   2   2   2 21.816  43.633   0.208   11.88    8       60.8       70.4
   24   3   0   1 21.918  43.835   0.209   11.76    8       43.0       35.0
   25   1   1   5 22.344  44.688   0.213   11.26    8       78.8      112.1
   26   2   1   4 22.641  45.283   0.215   10.93   16       43.4       66.2
   27   3   1   0 22.764  45.528   0.216   10.8     8       58.7       59.6
   28   3   0   2 23.033  46.066   0.219   10.52    8       49.9       42.1
   29   3   1   1 23.13   46.26    0.22    10.42   16      123.5      509.6
   30   2   2   3 23.658  47.317   0.224    9.9     8        7.5        0.9
   31   3   1   2 24.201  48.403   0.229    9.4    16       51.2       79.2
   32   2   0   5 24.689  49.379   0.233    8.98    8       78.4       88.7
   33   3   0   3 24.805  49.609   0.235    8.89    8       35.4       17.9
   34   1   0   6 25.102  50.204   0.237    8.65    8        7.0        0.7
   35   2   1   5 25.801  51.603   0.243    8.12   16       19.8       10.3
   36   3   1   3 25.913  51.826   0.244    8.05   16      104.4      281.6
   37   2   2   4 26.068  52.137   0.246    7.94    8       84.5       91.0
   38   3   2   0 26.179  52.358   0.247    7.86    8       23.5        6.9
   39   1   1   6 26.201  52.403   0.247    7.85    8       54.4       37.2
   40   3   2   1 26.509  53.019   0.25     7.64   16       11.1        3.0
   41   3   0   4 27.14   54.28    0.255    7.24    8       15.9        2.9
   42   3   2   2 27.483  54.967   0.258    7.04   16       26.6       16.0
   43   3   1   4 28.183  56.366   0.264    6.65   16       60.9       79.1
   44   2   0   6 28.309  56.618   0.265    6.58    8       75.5       60.1
   45   2   2   5 28.954  57.908   0.271    6.25    8       12.1        1.5
   46   3   2   3 29.057  58.115   0.271    6.2    16       16.9        5.7
   47   4   0   0 29.304  58.608   0.274    6.09    4      215.3      226.4
   48   1   0   7 29.304  58.608   0.274    6.09    8       10.3        1.0
   49   2   1   6 29.325  58.649   0.274    6.08   16       18.9        7.0
   50   4   0   1 29.611  59.221   0.276    5.95    8       15.5        2.3
   51   3   0   5 29.956  59.912   0.279    5.79    8       41.9       16.3
   52   4   1   0 30.299  60.597   0.282    5.65    8       44.3       17.8
   53   1   1   7 30.299  60.598   0.282    5.65    8       64.0       37.2
   54   4   0   2 30.519  61.039   0.284    5.56    8        8.9        0.7
   55   4   1   1 30.599  61.198   0.285    5.52   16       20.1        7.1
   56   3   1   5 30.938  61.876   0.287    5.39   16       47.8       39.6
   57   3   2   4 31.176  62.351   0.289    5.3    16       18.3        5.7
   58   3   3   0 31.274  62.548   0.29     5.26    4       28.0        3.3
   59   4   1   2 31.491  62.982   0.292    5.18   16       17.2        4.9
   60   3   3   1 31.569  63.139   0.293    5.16    8       13.4        1.5
   61   4   0   3 31.999  63.999   0.296    5.01    8        8.5        0.6
   62   2   0   7 32.233  64.466   0.298    4.93    8       81.9       53.0
   63   2   2   6 32.252  64.504   0.298    4.92    8      237.7      446.5
   64   3   3   2 32.446  64.892   0.3      4.86    8       15.6        1.9
   65   0   0   8 32.793  65.586   0.303    4.75    2      117.1       26.1
   66   4   1   3 32.946  65.893   0.304    4.7    16       24.5        9.1
   67   4   2   0 33.176  66.352   0.306    4.63    8       25.6        4.9
   68   2   1   7 33.176  66.353   0.306    4.63   16       39.6       23.3
   69   3   0   6 33.195  66.391   0.306    4.63    8       28.1        5.9
   70   4   2   1 33.462  66.925   0.308    4.55   16       59.2       51.1
   71   1   0   8 33.728  67.457   0.31     4.47    8       13.0        1.2
   72   3   2   5 33.785  67.57    0.311    4.46   16       27.9       11.1
   73   3   3   3 33.88   67.759   0.312    4.43    8      189.3      254.7
   74   4   0   4 34.012  68.024   0.313    4.4     8      234.6      388.2
   75   3   1   6 34.125  68.25    0.314    4.37   16       29.3       12.1
   76   4   2   2 34.313  68.627   0.315    4.32   16       78.7       85.8
   77   1   1   8 34.651  69.302   0.318    4.23    8       41.3       11.6
   78   4   1   4 34.931  69.862   0.32     4.16   16       25.2        8.5
   79   4   2   3 35.711  71.421   0.326    3.98   16       45.4       26.4
   80   3   3   4 35.84   71.68    0.327    3.95    8       67.4       28.8
   81   2   2   7 35.932  71.864   0.328    3.93    8        8.8        0.5
   82   2   0   8 36.465  72.929   0.332    3.82    8       23.3        3.3
   83   4   0   5 36.52   73.039   0.333    3.81    8       41.3       10.4
   84   3   0   7 36.83   73.66    0.335    3.75    8       25.0        3.8
   85   3   2   6 36.848  73.697   0.335    3.75   16       10.2        1.2
   86   2   1   8 37.358  74.716   0.339    3.65   16       13.9        2.3
   87   4   1   5 37.412  74.825   0.34     3.64   16       29.1        9.9
   88   4   2   4 37.63   75.259   0.341    3.61   16        9.6        1.1
   89   4   3   0 37.72   75.44    0.342    3.59    8       40.1        9.3
   90   3   1   7 37.72   75.441   0.342    3.59   16      147.7      251.6
   91   4   3   1 37.991  75.982   0.344    3.55   16       40.1       18.3
   92   5   0   1 37.991  75.982   0.344    3.55    8       11.2        0.7
   93   3   3   5 38.298  76.595   0.346    3.5     8       63.9       22.9
   94   1   0   9 38.424  76.847   0.347    3.48    8       20.8        2.4
   95   5   1   0 38.603  77.206   0.349    3.45    8       30.2        5.0
   96   4   3   2 38.8    77.601   0.35     3.42   16       40.4       17.9
   97   5   0   2 38.8    77.601   0.35     3.42    8       42.0        9.7
   98   5   1   1 38.872  77.744   0.351    3.41   16       92.1       92.7
   99   1   1   9 39.302  78.603   0.354    3.35    8       40.3        8.7
  100   4   0   6 39.498  78.996   0.356    3.32    8        6.1        0.2
  101   5   1   2 39.676  79.352   0.357    3.3    16       66.9       47.4
  102   2   2   8 39.996  79.993   0.359    3.26    8       76.6       30.7
  103   4   2   5 40.05   80.099   0.36     3.25   16       58.2       35.4
  104   4   3   3 40.138  80.277   0.36     3.24   16       41.8       18.1
  105   5   0   3 40.138  80.277   0.36     3.24    8       18.5        1.8
  106   3   2   7 40.352  80.703   0.362    3.21   16       17.6        3.2
  107   4   1   6 40.369  80.738   0.362    3.21   16        8.8        0.8
  108   3   0   8 40.865  81.731   0.366    3.15    8       14.3        1.0
  109   5   1   3 41.007  82.013   0.367    3.14   16       55.9       31.4
  110   2   0   9 41.042  82.084   0.367    3.13    8       38.8        7.6
  111   5   2   0 41.219  82.437   0.368    3.11    8       51.3       13.2
  112   3   3   6 41.236  82.473   0.368    3.11    8       15.2        1.2
  113   5   2   1 41.483  82.967   0.37     3.09   16       30.2        9.1
  114   3   1   8 41.73   83.461   0.372    3.06   16       56.8       31.7
  115   2   1   9 41.907  83.813   0.373    3.05   16       15.5        2.3
  116   4   3   4 41.994  83.989   0.374    3.04   16       20.4        4.1
  117   5   0   4 41.994  83.989   0.374    3.04    8        1.6        0.0
  118   5   2   2 42.276  84.552   0.376    3.01   16       11.0        1.2
  119   5   1   4 42.856  85.712   0.38     2.97   16       37.6       13.5
  120   4   0   7 42.944  85.887   0.381    2.96    8       10.7        0.5
  121   4   2   6 42.961  85.922   0.381    2.96   16       83.4       66.0
  122   1   0  10 43.47   86.94    0.385    2.92    8       12.4        0.7
  123   5   2   3 43.593  87.185   0.385    2.91   16       47.8       21.3
  124   4   4   0 43.803  87.606   0.387    2.9     4      281.2      183.9
  125   4   1   7 43.803  87.606   0.387    2.9    16       32.6        9.9
  126   4   4   1 44.066  88.131   0.389    2.88    8       38.9        7.0
  127   3   2   8 44.311  88.622   0.39     2.87   16       13.4        1.6
  128   1   1  10 44.329  88.657   0.391    2.86    8       40.3        7.5
  129   4   3   5 44.363  88.727   0.391    2.86   16       28.0        7.2
  130   5   0   5 44.363  88.727   0.391    2.86    8        7.7        0.3
  131   2   2   9 44.486  88.972   0.392    2.86    8       11.7        0.6
  132   3   3   7 44.661  89.322   0.393    2.85    8       40.7        7.6
  133   4   4   2 44.854  89.707   0.394    2.84    8       13.7        0.9


  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   8.039  16.077  6.39625       42.5      1.5      1.5     5.6
    2   1   1   0   9.965  19.93   5.16895      334.5     11.6     11.7     5.6
    3   1   0   2  10.515  21.031  4.90119       34.2      1.2      1.2     5.6
    4   1   1   2  12.693  25.385  4.07086      279.0      9.7      9.7     5.6
    5   2   0   0  14.165  28.331  3.655         29.2      1.0      1.0     5.6
    6   2   0   1  14.709  29.418  3.52269      375.5     13.0     13.0     5.6
    7   1   1   3  15.475  30.951  3.35225     2889.6    100.0    100.0     5.6
    8   0   0   4  15.712  31.424  3.303        141.1      4.9      4.9     5.6
    9   2   0   2  16.241  32.483  3.19812      492.9     17.1     17.0     5.6
   10   2   1   2  17.775  35.55   2.92998       47.8      1.7      1.6     5.7
   11   2   0   3  18.543  37.087  2.81255      209.5      7.2      7.2     5.7
   12   1   1   4  18.746  37.492  2.78328      108.3      3.7      3.7     5.7
   13   2   2   0  20.248  40.497  2.58448      114.3      4.0      3.9     5.7
   14   2   2   2  21.816  43.633  2.40683       70.4      2.4      2.4     5.7
   15   3   0   1  21.918  43.835  2.39625       35.0      1.2      1.2     5.7
   16   1   1   5  22.344  44.688  2.35279      112.1      3.9      3.8     5.7
   17   2   1   4  22.641  45.283  2.32351       66.2      2.3      2.3     5.7
   18   3   1   0  22.764  45.528  2.31163       59.6      2.1      2.0     5.7
   19   3   0   2  23.033  46.066  2.28611       42.1      1.5      1.4     5.7
   20   3   1   1  23.13   46.26   2.27703      509.6     17.6     17.4     5.7
   21   3   1   2  24.201  48.403  2.1819        79.2      2.7      2.7     5.7
   22   2   0   5  24.689  49.379  2.14139       88.7      3.1      3.0     5.7
   23   3   1   3  25.913  51.826  2.0468       281.6      9.7      9.5     5.8
   24   2   2   4  26.068  52.137  2.03543       91.0      3.1      3.1     5.8
   25   1   1   6  26.201  52.403  2.02584       44.2      1.5      1.5     5.8
   26   3   1   4  28.183  56.366  1.89389       79.1      2.7      2.7     5.8
   27   2   0   6  28.309  56.618  1.88615       60.1      2.1      2.0     5.8
   28   4   0   0  29.304  58.608  1.8275       234.4      8.1      7.9     5.8
   29   1   1   7  30.299  60.598  1.77293       54.9      1.9      1.8     5.8
   30   3   1   5  30.938  61.876  1.73983       39.6      1.4      1.3     5.8
   31   2   2   6  32.252  64.504  1.67613      499.4     17.3     16.6     5.9
   32   3   0   6  33.195  66.391  1.63373       34.0      1.2      1.1     5.9
   33   4   2   1  33.462  66.925  1.6222        51.1      1.8      1.7     5.9
   34   3   3   3  33.88   67.759  1.60456      254.7      8.8      8.4     5.9
   35   4   0   4  34.012  68.024  1.59906      388.2     13.4     12.8     5.9
   36   4   2   2  34.313  68.627  1.58671       85.8      3.0      2.8     5.9
   37   3   1   7  37.72   75.441  1.462        260.9      9.0      8.5     6.0
   38   5   1   1  38.872  77.744  1.42524       92.7      3.2      3.0     6.0
   39   5   1   2  39.676  79.352  1.401         47.4      1.6      1.5     6.0
   40   2   2   8  39.996  79.993  1.39164       30.7      1.1      1.0     6.0
   41   4   2   5  40.05   80.099  1.3901        35.4      1.2      1.1     6.0
   42   5   1   3  41.007  82.013  1.3632        31.4      1.1      1.0     6.1
   43   3   1   8  41.73   83.461  1.34379       31.7      1.1      1.0     6.1
   44   4   2   6  42.961  85.922  1.31248       66.0      2.3      2.1     6.1
   45   4   4   0  43.803  87.606  1.29224      193.7      6.7      6.1     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)