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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STRONTIANITE

1, g-aragonite

SrCO(3)


Orthorhombic  P mcn  Z = 4

R =0.031

27 .4 .1990

Ref.Str.:

         J.P.R.De Villiers (1971)

         * Amer. Mineral., 56, 758-767

                   Initial data from BDM-file 

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

             a =   5.09     alpha =   90.0 
             b =   8.358    beta  =   90.0 
             c =   5.997    gamma =   90.0 

    Unit cell volume (cub. angs.) =   255.13

    Molar volume ( cub.cm/mol.) =    38.42

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

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

   1 0.25    0.416   0.7569   0.51   Sr    = 1.00
   2 0.25    0.7601  0.9136   0.59   C     = 1.00
   3 0.25    0.9119  0.9054   0.91   O     = 1.00
   4 0.4694  0.6821  0.9161   0.8    O     = 1.00


  Co-ordinates for all atomic positions :

   No       NoP      x/a        y/b       z/c 

     1       1     0.25       0.416      0.7569
     2       2     0.25       0.7601     0.9136
     3       3     0.25       0.9119     0.9054
     4       4     0.4694     0.6821     0.9161
     5       1     0.75       0.584      0.2431
     6       2     0.75       0.2399     0.0864
     7       3     0.75       0.0881     0.0946
     8       4     0.5306     0.3179     0.0839
     9       1     0.25       0.084      0.2569
    10       2     0.25       0.7399     0.4136
    11       3     0.25       0.5881     0.4054
    12       4     0.0306     0.8179     0.4161
    13       1     0.75       0.916      0.7431
    14       2     0.75       0.2601     0.5864
    15       3     0.75       0.4119     0.5946
    16       4     0.9694     0.1821     0.5839
    17       4     0.0306     0.6821     0.9161
    18       4     0.9694     0.3179     0.0839
    19       4     0.4694     0.8179     0.4161
    20       4     0.5306     0.1821     0.5839


X-ray density (g/cm cub.)   =      3.84

MU (1/cm) =     300.858    Mass attenuation coefficient (cm**2/g) =     78.303

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

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

    1    Sr                  3.072        9
                                                 2.6655       4
                                                 2.5608       4
                                                 2.552        3
                                                 2.725        3
                                                 2.725        3
                                                 2.634        4
                                                 2.6655       4
                                                 2.5608       4
                                                 2.634        4
    2    C                   1.872        3
                                                 1.2697       3
                                                 1.2932       4
                                                 1.2932       4
    3    O                   3.264        6
                                                 2.2227       4
                                                 3.1517       3
                                                 3.1517       3
                                                 3.2365       4
                                                 2.2227       4
                                                 3.2365       4
    4    O                   3.264        7
                                                 2.2227       3
                                                 3.2211       4
                                                 3.2365       3
                                                 2.8565       4
                                                 2.2335       4
                                                 3.2061       4
                                                 3.2061       4

  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   0   1   1  9.096  18.192   0.103   77.1     4        4.3        8.7
    2   1   1   0 10.206  20.412   0.115   60.79    4       22.8      194.2
    3   0   2   0 10.622  21.243   0.12    55.96    2       21.7       81.0
    4   1   1   1 12.641  25.282   0.142   38.89    8       98.6     4651.4
    5   0   2   1 12.983  25.966   0.146   36.77    4      104.2     2452.3
    6   0   0   2 14.886  29.771   0.167   27.49    2       81.1      556.0
    7   1   2   1 15.716  31.433   0.176   24.47    8       17.8       95.7
    8   0   1   2 15.838  31.676   0.177   24.06    4       57.2      484.3
    9   1   0   2 17.346  34.693   0.194   19.75    4       51.0      316.2
   10   2   0   0 17.618  35.235   0.196   19.09    2      111.6      731.3
   11   0   3   1 17.75   35.5     0.198   18.79    4       32.8      124.1
   12   1   1   2 18.184  36.368   0.203   17.82    8       72.3     1145.2
   13   1   3   0 18.372  36.744   0.205   17.42    4      109.4     1280.3
   14   0   2   2 18.432  36.863   0.205   17.29    4       73.2      568.7
   15   1   3   1 19.899  39.797   0.221   14.6     8        2.9        1.5
   16   2   1   1 19.966  39.932   0.222   14.49    8       24.4      105.8
   17   1   2   2 20.519  41.039   0.228   13.63    8        2.4        0.9
   18   2   2   0 20.755  41.51    0.23    13.29    4       75.0      459.3
   19   0   4   0 21.632  43.264   0.239   12.11    2       60.8      137.8
   20   2   2   1 22.144  44.288   0.245   11.49    8      116.7     1923.8
   21   0   3   2 22.173  44.346   0.245   11.46    4       11.5        9.4
   22   0   4   1 22.978  45.956   0.253   10.57    4      115.4      865.6
   23   0   1   3 23.341  46.682   0.257   10.2     4        8.7        4.7
   24   2   0   2 23.39   46.78    0.258   10.16    4      109.1      743.3
   25   1   3   2 23.992  47.985   0.264    9.59    8      103.9     1271.9
   26   2   1   2 24.051  48.101   0.265    9.53    8       12.2       17.5
   27   1   4   1 24.752  49.503   0.272    8.93    8       18.4       37.0
   28   1   1   3 25.095  50.19    0.275    8.66    8       99.0     1042.2
   29   0   2   3 25.287  50.573   0.277    8.51    4       96.8      489.9
   30   2   3   1 25.441  50.883   0.279    8.39    8       28.4       83.1
   31   2   2   2 25.957  51.913   0.284    8.01    8       41.2      167.6
   32   0   4   2 26.7    53.4     0.292    7.52    4       49.4      112.6
   33   1   2   3 26.947  53.894   0.294    7.36    8       14.1       17.9
   34   3   1   0 27.597  55.195   0.301    6.97    4       46.7       93.3
   35   1   4   2 28.302  56.604   0.308    6.58    8        5.2        2.2
   36   0   3   3 28.311  56.623   0.308    6.58    4        0.1        0.0
   37   2   4   0 28.488  56.976   0.31     6.49    4       45.3       81.9
   38   0   5   1 28.579  57.158   0.311    6.44    4       26.9       28.7
   39   3   1   1 28.733  57.467   0.312    6.36    8       71.5      400.0
   40   2   3   2 28.932  57.865   0.314    6.26    8        4.0        1.3
   41   1   5   0 29.014  58.027   0.315    6.22    4       34.7       46.0
   42   2   4   1 29.602  59.203   0.321    5.95    8       72.2      381.5
   43   1   3   3 29.856  59.712   0.323    5.84    8        1.1        0.1
   44   2   1   3 29.906  59.812   0.324    5.81    8        7.8        4.3
   45   1   5   1 30.115  60.23    0.326    5.72    8       73.2      376.8
   46   3   2   1 30.434  60.868   0.329    5.59    8       24.4       41.0
   47   0   0   4 30.916  61.831   0.334    5.4     2       61.6       63.1
   48   3   0   2 31.442  62.884   0.339    5.2     4       14.9        7.1
   49   0   1   4 31.465  62.93    0.339    5.19    4       40.5       52.4
   50   2   2   3 31.568  63.136   0.34     5.16    8       46.9      139.6
   51   0   5   2 31.842  63.683   0.342    5.06    4        4.6        0.7
   52   3   1   2 31.986  63.972   0.344    5.01    8       45.1      125.0
   53   3   3   0 32.111  64.222   0.345    4.97    4       80.8      199.6
   54   0   4   3 32.227  64.454   0.346    4.93    4       42.3       54.3
   55   1   0   4 32.385  64.769   0.348    4.88    4        4.5        0.6
   56   2   4   2 32.803  65.606   0.352    4.75    8       47.8      133.5
   57   1   1   4 32.92   65.841   0.353    4.71    8       55.5      178.0
   58   0   2   4 33.082  66.164   0.354    4.66    4       51.8       76.9
   59   3   3   1 33.152  66.303   0.355    4.64    8        6.9        2.7
   60   1   5   2 33.288  66.576   0.356    4.6     8       46.2      120.4
   61   0   6   0 33.571  67.141   0.359    4.52    2       86.1      103.0
   62   3   2   2 33.59   67.18    0.359    4.51    8        9.6        5.1
   63   1   4   3 33.665  67.329   0.36     4.49    8       11.7        7.6
   64   2   3   3 34.236  68.473   0.365    4.34    8        0.4        0.0
   65   2   5   1 34.477  68.954   0.367    4.27    8       12.5        8.3
   66   1   2   4 34.502  69.003   0.368    4.27    8       12.6        8.3
   67   0   6   1 34.589  69.178   0.368    4.25    4        8.5        1.9
   68   0   3   4 35.693  71.387   0.379    3.99    4       10.6        2.8
   69   1   6   1 35.981  71.961   0.381    3.92    8        1.5        0.1
   70   3   3   2 36.184  72.368   0.383    3.88    8       86.0      353.0
   71   2   0   4 36.605  73.211   0.387    3.8     4       80.5      151.3
   72   3   4   1 36.781  73.562   0.389    3.76    8        1.7        0.1
   73   0   5   3 36.919  73.838   0.39     3.74    4        7.2        1.2
   74   3   1   3 37.054  74.108   0.391    3.71    8       85.4      332.3
   75   1   3   4 37.067  74.135   0.391    3.71    8       84.6      326.0
   76   2   1   4 37.112  74.225   0.392    3.7     8        1.1        0.1
   77   4   0   0 37.252  74.505   0.393    3.67    2      116.4      152.9
   78   2   5   2 37.461  74.923   0.395    3.64    8       15.7       11.1
   79   0   6   2 37.569  75.139   0.396    3.62    4       83.6      155.4
   80   2   4   3 37.819  75.639   0.398    3.57    8       82.8      301.5
   81   1   5   3 38.276  76.553   0.402    3.5     8       81.3      284.1
   82   3   2   3 38.561  77.123   0.405    3.45    8       11.2        5.3
   83   2   2   4 38.619  77.238   0.405    3.45    8       33.2       46.6
   84   4   1   1 38.728  77.457   0.406    3.43    8        0.8        0.0
   85   1   6   2 38.919  77.838   0.408    3.4     8       19.2       15.4
   86   2   6   0 39.078  78.156   0.409    3.38    4      112.9      264.4
   87   0   4   4 39.224  78.447   0.41     3.36    4       38.5       30.6
   88   4   2   0 39.255  78.509   0.411    3.35    4       27.2       15.2
   89   3   4   2 39.699  79.397   0.415    3.29    8        1.9        0.1
   90   2   6   1 40.041  80.081   0.418    3.25    8        3.5        0.5
   91   4   2   1 40.216  80.432   0.419    3.23    8       68.4      185.6
   92   3   5   0 40.307  80.613   0.42     3.22    4       21.9        9.5
   93   0   1   5 40.451  80.902   0.421    3.2     4       16.0        5.0
   94   1   4   4 40.557  81.114   0.422    3.19    8        7.9        2.4
   95   3   3   3 41.036  82.072   0.426    3.13    8       13.4        6.9
   96   2   3   4 41.093  82.185   0.427    3.13    8       19.1       14.0
   97   4   0   2 41.116  82.231   0.427    3.13    4       63.7       78.0
   98   0   7   1 41.131  82.263   0.427    3.12    4        2.9        0.2
   99   3   5   1 41.262  82.525   0.428    3.11    8       68.5      179.6
  100   1   7   0 41.501  83.003   0.43     3.09    4       31.8       19.2
  101   4   1   2 41.606  83.213   0.431    3.08    8       18.2       12.5
  102   1   1   5 41.776  83.551   0.432    3.06    8       64.2      154.8
  103   0   2   5 41.924  83.849   0.434    3.05    4       60.0       67.5
  104   2   5   3 42.27   84.54    0.437    3.01    8        7.1        1.9
  105   0   6   3 42.375  84.75    0.437    3.0     4        7.7        1.1
  106   1   7   1 42.452  84.904   0.438    3.0     8       59.8      131.7
  107   4   3   1 42.669  85.338   0.44     2.98    8        9.5        3.3
  108   2   6   2 42.899  85.798   0.442    2.96    8       62.1      140.4
  109   4   2   2 43.073  86.145   0.443    2.95    8       42.9       66.8
  110   1   2   5 43.241  86.483   0.445    2.94    8        7.7        2.1
  111   3   0   4 43.285  86.569   0.445    2.93    4       10.0        1.8
  112   0   5   4 43.642  87.284   0.448    2.91    4        5.2        0.5
  113   1   6   3 43.69   87.381   0.448    2.9     8        0.5        0.0
  114   3   1   4 43.772  87.544   0.449    2.9     8       39.5       55.6
  115   0   7   2 43.979  87.957   0.451    2.89    4        8.4        1.2
  116   3   5   2 44.109  88.217   0.452    2.88    8       42.4       63.6
  117   0   3   5 44.363  88.727   0.454    2.86    4       13.0        3.0
  118   3   4   3 44.455  88.91    0.455    2.86    8        9.5        3.2
  119   2   4   4 44.511  89.022   0.455    2.85    8       38.4       51.7
  120   1   5   4 44.955  89.909   0.459    2.83    8       39.7       54.8


  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   1   0  10.206  20.412  4.34729      194.2      4.2      4.2     5.6
    2   0   2   0  10.622  21.243  4.179         81.0      1.7      1.7     5.6
    3   1   1   1  12.641  25.282  3.51976     4651.4    100.0    100.0     5.6
    4   0   2   1  12.983  25.966  3.42864     2452.3     52.7     52.7     5.6
    5   0   0   2  14.886  29.771  2.9985       556.0     12.0     11.9     5.6
    6   1   2   1  15.716  31.433  2.84366       95.7      2.1      2.0     5.6
    7   0   1   2  15.838  31.676  2.82237      484.3     10.4     10.4     5.6
    8   1   0   2  17.346  34.693  2.58354      316.2      6.8      6.7     5.7
    9   2   0   0  17.618  35.235  2.545        731.3     15.7     15.6     5.7
   10   0   3   1  17.75   35.5    2.52666      124.1      2.7      2.6     5.7
   11   1   1   2  18.184  36.368  2.46831     1145.2     24.6     24.4     5.7
   12   1   3   0  18.372  36.744  2.44387     1280.3     27.5     27.3     5.7
   13   0   2   2  18.432  36.863  2.43625      568.7     12.2     12.1     5.7
   14   2   1   1  19.966  39.932  2.25582      105.8      2.3      2.2     5.7
   15   2   2   0  20.755  41.51   2.17364      459.3      9.9      9.7     5.7
   16   0   4   0  21.632  43.264  2.0895       137.8      3.0      2.9     5.7
   17   2   2   1  22.144  44.288  2.04355     1923.8     41.4     40.6     5.7
   18   0   4   1  22.978  45.956  1.97316      865.6     18.6     18.3     5.7
   19   2   0   2  23.39   46.78   1.94032      743.3     16.0     15.7     5.7
   20   1   3   2  23.992  47.985  1.89437     1271.9     27.3     26.8     5.7
   21   1   1   3  25.095  50.19   1.81619     1042.2     22.4     21.9     5.7
   22   0   2   3  25.287  50.573  1.80331      489.9     10.5     10.3     5.8
   23   2   3   1  25.441  50.883  1.79307       83.1      1.8      1.7     5.8
   24   2   2   2  25.957  51.913  1.75988      167.6      3.6      3.5     5.8
   25   0   4   2  26.7    53.4    1.71432      112.6      2.4      2.4     5.8
   26   3   1   0  27.597  55.195  1.66275       93.3      2.0      1.9     5.8
   27   2   4   0  28.488  56.976  1.61493       81.9      1.8      1.7     5.8
   28   3   1   1  28.733  57.467  1.6023       400.0      8.6      8.3     5.8
   29   2   4   1  29.602  59.203  1.55938      381.5      8.2      7.9     5.8
   30   1   5   1  30.115  60.23   1.53523      376.8      8.1      7.8     5.8
   31   0   0   4  30.916  61.831  1.49925       63.1      1.4      1.3     5.8
   32   0   1   4  31.465  62.93   1.4757        59.5      1.3      1.2     5.9
   33   2   2   3  31.568  63.136  1.47138      139.6      3.0      2.9     5.9
   34   3   1   2  31.986  63.972  1.45414      125.0      2.7      2.6     5.9
   35   3   3   0  32.111  64.222  1.4491       199.6      4.3      4.1     5.9
   36   0   4   3  32.227  64.454  1.44444       54.3      1.2      1.1     5.9
   37   2   4   2  32.803  65.606  1.42183      133.5      2.9      2.7     5.9
   38   1   1   4  32.92   65.841  1.41733      178.0      3.8      3.7     5.9
   39   0   2   4  33.082  66.164  1.41118       76.9      1.7      1.6     5.9
   40   1   5   2  33.288  66.576  1.40345      120.4      2.6      2.5     5.9
   41   0   6   0  33.571  67.141  1.393        108.1      2.3      2.2     5.9
   42   3   3   2  36.184  72.368  1.30472      353.0      7.6      7.2     5.9
   43   2   0   4  36.605  73.211  1.29177      151.3      3.3      3.1     6.0
   44   3   1   3  37.054  74.108  1.27833      658.3     14.2     13.3     6.0
   45   4   0   0  37.252  74.505  1.2725       152.9      3.3      3.1     6.0
   46   0   6   2  37.569  75.139  1.26333      155.4      3.3      3.1     6.0
   47   2   4   3  37.819  75.639  1.25621      301.5      6.5      6.1     6.0
   48   1   5   3  38.276  76.553  1.24348      284.1      6.1      5.7     6.0
   49   2   2   4  38.619  77.238  1.23415       46.6      1.0      0.9     6.0
   50   2   6   0  39.078  78.156  1.22193      264.4      5.7      5.3     6.0
   51   4   2   1  40.216  80.432  1.19299      185.6      4.0      3.7     6.0
   52   4   0   2  41.116  82.231  1.17138       92.0      2.0      1.8     6.1
   53   3   5   1  41.262  82.525  1.16796      179.6      3.9      3.6     6.1
   54   1   1   5  41.776  83.551  1.1562       154.8      3.3      3.1     6.1
   55   0   2   5  41.924  83.849  1.15286       67.5      1.5      1.3     6.1
   56   1   7   1  42.452  84.904  1.1412       131.7      2.8      2.6     6.1
   57   2   6   2  42.899  85.798  1.13158      140.4      3.0      2.8     6.1
   58   4   2   2  43.073  86.145  1.12791       66.8      1.4      1.3     6.1
   59   3   1   4  43.772  87.544  1.11346       55.6      1.2      1.1     6.2
   60   3   5   2  44.109  88.217  1.10669       63.6      1.4      1.2     6.2
   61   2   4   4  44.511  89.022  1.09875       51.7      1.1      1.0     6.2
   62   1   5   4  44.955  89.909  1.0902        54.8      1.2      1.1     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)