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       ***
                  ***********************
STRONTIANITE

4, t-aragonite, syn, g-aragonite

SrCO(3)


Orthorhombic  P mcn  Z = 4

Pmcn

19 .7 .16

Ref.Str.:

         Antao S.M., Hassan I. (2009)

         * Canad. Mineral., 47, 1245-1255

         R: N.A.D.

                   Initial data from BDM-file 

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

             a =   5.1075   alpha =   90.0 
             b =   8.4138   beta  =   90.0 
             c =   6.0269   gamma =   90.0 

    Unit cell volume (cub. angs.) =   259.0 

    Molar volume ( cub.cm/mol.) =    39.0 

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

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

   1 0.25    0.4162  0.7568   0.0    Sr    = 1.00
   2 0.25    0.7584  0.9139   0.0    C     = 1.00
   3 0.25    0.9113  0.9057   0.0    O     = 1.00
   4 0.4679  0.6817  0.9135   0.0    O     = 1.00


  Co-ordinates for all atomic positions :

   No       NoP      x/a        y/b       z/c 

     1       1     0.25       0.4162     0.7568
     2       2     0.25       0.7584     0.9139
     3       3     0.25       0.9113     0.9057
     4       4     0.4679     0.6817     0.9135
     5       1     0.75       0.5838     0.2432
     6       2     0.75       0.2416     0.0861
     7       3     0.75       0.0887     0.0943
     8       4     0.5321     0.3183     0.0865
     9       1     0.25       0.0838     0.2568
    10       2     0.25       0.7416     0.4139
    11       3     0.25       0.5887     0.4057
    12       4     0.0321     0.8183     0.4135
    13       1     0.75       0.9162     0.7432
    14       2     0.75       0.2584     0.5861
    15       3     0.75       0.4113     0.5943
    16       4     0.9679     0.1817     0.5865
    17       4     0.0321     0.6817     0.9135
    18       4     0.9679     0.3183     0.0865
    19       4     0.4679     0.8183     0.4135
    20       4     0.5321     0.1817     0.5865


X-ray density (g/cm cub.)   =      3.78

MU (1/cm) =     296.359    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
                                                 2.6679       4
                                                 2.5893       4
                                                 2.5657       3
                                                 2.7354       3
                                                 2.7354       3
                                                 2.6504       4
                                                 2.6679       4
                                                 2.5893       4
                                                 2.6504       4
    2    C                   1.872        3
                                                 1.2877       3
                                                 1.2864       4
                                                 1.2864       4
    3    O                   3.264        6
                                                 2.2303       4
                                                 3.1686       3
                                                 3.1686       3
                                                 3.2636       4
                                                 2.2303       4
                                                 3.2636       4
    4    O                   3.264        7
                                                 2.2303       3
                                                 3.2468       4
                                                 3.2636       3
                                                 2.8821       4
                                                 2.2254       4
                                                 3.2254       4
                                                 3.2254       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  9.045  18.09    0.102   77.99    4        4.3        8.7
    2   1   1   0 10.162  20.323   0.115   61.34    4       22.1      178.1
    3   0   2   0 10.55   21.101   0.119   56.75    2       22.1       82.4
    4   1   1   1 12.583  25.166   0.141   39.27    8      100.1     4692.5
    5   0   2   1 12.903  25.805   0.145   37.25    4      104.4     2421.3
    6   0   0   2 14.81   29.62    0.166   27.79    2       83.3      575.5
    7   1   2   1 15.632  31.263   0.175   24.75    8       17.8       93.5
    8   0   1   2 15.754  31.509   0.176   24.34    4       59.6      516.0
    9   1   0   2 17.265  34.529   0.193   19.96    4       52.9      333.3
   10   2   0   0 17.555  35.111   0.196   19.24    2      114.2      748.8
   11   0   3   1 17.634  35.267   0.197   19.06    4       33.8      130.1
   12   1   1   2 18.095  36.189   0.202   18.01    8       74.0     1177.6
   13   1   3   0 18.26   36.52    0.203   17.65    4      111.8     1315.5
   14   0   2   2 18.326  36.652   0.204   17.51    4       74.5      579.3
   15   1   3   1 19.779  39.558   0.22    14.8     8        2.9        1.5
   16   2   1   1 19.885  39.771   0.221   14.62    8       25.3      111.7
   17   1   2   2 20.409  40.818   0.226   13.8     8        2.9        1.4
   18   2   2   0 20.662  41.324   0.229   13.43    4       77.5      480.4
   19   0   4   0 21.481  42.963   0.238   12.31    2       63.1      146.0
   20   0   3   2 22.036  44.072   0.244   11.62    4       11.6        9.3
   21   2   2   1 22.042  44.084   0.244   11.61    8      121.1     2031.0
   22   0   4   1 22.821  45.643   0.252   10.74    4      121.2      940.1
   23   0   1   3 23.216  46.432   0.256   10.33    4        9.6        5.7
   24   2   0   2 23.289  46.578   0.257   10.26    4      112.0      766.4
   25   1   3   2 23.852  47.703   0.262    9.72    8      108.1     1353.5
   26   2   1   2 23.943  47.886   0.263    9.63    8       13.1       19.6
   27   1   4   1 24.592  49.183   0.27     9.06    8       20.1       43.6
   28   1   1   3 24.965  49.93    0.274    8.76    8      103.3     1115.0
   29   0   2   3 25.144  50.288   0.276    8.62    4      101.1      525.7
   30   2   3   1 25.308  50.616   0.277    8.49    8       29.8       89.9
   31   2   2   2 25.83   51.661   0.283    8.1     8       43.8      185.6
   32   0   4   2 26.525  53.05    0.29     7.63    4       51.0      118.2
   33   1   2   3 26.799  53.599   0.293    7.45    8       14.3       18.2
   34   3   1   0 27.491  54.982   0.3      7.03    4       49.5      102.8
   35   1   4   2 28.123  56.246   0.306    6.68    8        5.9        2.8
   36   0   3   3 28.141  56.281   0.306    6.67    4        1.6        0.1
   37   2   4   0 28.322  56.644   0.308    6.57    4       47.2       87.3
   38   0   5   1 28.376  56.752   0.308    6.54    4       29.7       34.5
   39   3   1   1 28.619  57.237   0.311    6.42    8       74.8      427.8
   40   2   3   2 28.777  57.554   0.312    6.34    8        4.9        1.8
   41   1   5   0 28.813  57.626   0.313    6.32    4       37.3       52.6
   42   2   4   1 29.429  58.857   0.319    6.03    8       76.3      418.3
   43   1   3   3 29.681  59.361   0.321    5.91    8        2.1        0.3
   44   2   1   3 29.759  59.519   0.322    5.88    8        7.5        3.9
   45   1   5   1 29.908  59.816   0.324    5.81    8       76.3      403.1
   46   3   2   1 30.301  60.602   0.328    5.65    8       27.0       49.0
   47   0   0   4 30.746  61.491   0.332    5.47    2       62.8       64.3
   48   0   1   4 31.289  62.578   0.337    5.26    4       43.2       58.6
   49   3   0   2 31.309  62.618   0.337    5.25    4       15.0        7.0
   50   2   2   3 31.404  62.808   0.338    5.22    8       48.7      147.3
   51   0   5   2 31.62   63.24    0.34     5.14    4        5.7        1.0
   52   3   1   2 31.847  63.695   0.343    5.06    8       48.0      138.8
   53   3   3   0 31.957  63.913   0.344    5.02    4       85.3      217.9
   54   0   4   3 32.019  64.038   0.344    5.0     4       43.6       56.8
   55   1   0   4 32.209  64.418   0.346    4.94    4        5.9        1.0
   56   2   4   2 32.609  65.218   0.35     4.81    8       50.6      146.6
   57   1   1   4 32.739  65.478   0.351    4.76    8       59.9      204.1
   58   0   2   4 32.89   65.78    0.352    4.72    4       56.8       90.9
   59   3   3   1 32.99   65.98    0.353    4.69    8        8.6        4.2
   60   1   5   2 33.062  66.123   0.354    4.67    8       50.1      139.6
   61   0   6   0 33.319  66.637   0.357    4.59    2       92.1      116.1
   62   3   2   2 33.433  66.867   0.358    4.56    8       11.2        6.8
   63   1   4   3 33.452  66.903   0.358    4.55    8       12.8        8.9
   64   2   3   3 34.045  68.089   0.363    4.39    8        1.7        0.2
   65   2   5   1 34.256  68.512   0.365    4.33    8       12.7        8.3
   66   1   2   4 34.304  68.607   0.366    4.32    8       13.5        9.4
   67   0   6   1 34.331  68.661   0.366    4.31    4        9.2        2.2
   68   0   3   4 35.474  70.948   0.377    4.03    4       11.8        3.4
   69   1   6   1 35.717  71.434   0.379    3.98    8        2.4        0.3
   70   3   3   2 35.999  71.998   0.382    3.92    8       93.2      405.8
   71   2   0   4 36.411  72.822   0.385    3.83    4       88.4      178.8
   72   3   4   1 36.579  73.159   0.387    3.8     8        2.1        0.2
   73   0   5   3 36.663  73.327   0.388    3.78    4        6.4        0.9
   74   1   3   4 36.842  73.683   0.389    3.75    8       92.1      379.1
   75   3   1   3 36.876  73.751   0.39     3.74    8       93.7      391.8
   76   2   1   4 36.912  73.825   0.39     3.74    8        1.6        0.1
   77   4   0   0 37.103  74.207   0.392    3.7     2      127.2      178.5
   78   2   5   2 37.218  74.437   0.393    3.68    8       18.2       14.5
   79   0   6   2 37.291  74.581   0.393    3.67    4       90.4      178.8
   80   2   4   3 37.589  75.178   0.396    3.61    8       90.3      351.8
   81   1   5   3 38.015  76.029   0.4      3.54    8       89.8      340.5
   82   3   2   3 38.365  76.731   0.403    3.49    8       12.7        6.7
   83   2   2   4 38.402  76.804   0.403    3.48    8       35.2       51.3
   84   4   1   1 38.565  77.13    0.405    3.45    8        0.3        0.0
   85   1   6   2 38.634  77.269   0.405    3.44    8       21.4       18.7
   86   2   6   0 38.804  77.609   0.407    3.42    4      125.3      320.2
   87   0   4   4 38.965  77.931   0.408    3.39    4       40.9       33.8
   88   4   2   0 39.082  78.164   0.409    3.38    4       30.0       18.1
   89   3   4   2 39.473  78.947   0.413    3.32    8        2.1        0.2
   90   2   6   1 39.759  79.518   0.415    3.29    8        4.5        0.8
   91   4   2   1 40.035  80.07    0.418    3.25    8       74.9      217.3
   92   3   5   0 40.062  80.123   0.418    3.25    4       23.5       10.7
   93   0   1   5 40.207  80.415   0.419    3.23    4       17.0        5.6
   94   1   4   4 40.292  80.584   0.42     3.22    8        8.1        2.5
   95   0   7   1 40.803  81.607   0.424    3.16    4        3.4        0.2
   96   3   3   3 40.811  81.622   0.424    3.16    8       15.5        9.1
   97   2   3   4 40.847  81.693   0.425    3.15    8       21.2       16.8
   98   4   0   2 40.933  81.866   0.425    3.15    4       70.0       91.9
   99   3   5   1 41.009  82.018   0.426    3.14    8       75.1      211.3
  100   1   7   0 41.174  82.349   0.427    3.12    4       33.7       21.2
  101   4   1   2 41.417  82.835   0.429    3.09    8       21.1       16.4
  102   1   1   5 41.524  83.049   0.43     3.08    8       70.7      183.6
  103   0   2   5 41.663  83.326   0.431    3.07    4       67.1       82.5
  104   2   5   3 41.988  83.975   0.434    3.04    8        8.4        2.6
  105   0   6   3 42.058  84.115   0.435    3.03    4       10.4        2.0
  106   1   7   1 42.117  84.233   0.435    3.03    8       66.6      160.2
  107   4   3   1 42.457  84.915   0.438    3.0     8       10.7        4.1
  108   2   6   2 42.593  85.186   0.439    2.99    8       68.3      166.4
  109   4   2   2 42.865  85.731   0.442    2.96    8       47.5       79.8
  110   1   2   5 42.972  85.944   0.442    2.96    8        8.1        2.3
  111   3   0   4 43.054  86.107   0.443    2.95    4       10.8        2.0
  112   0   5   4 43.331  86.662   0.445    2.93    4        5.7        0.6
  113   1   6   3 43.365  86.73    0.446    2.93    8        0.6        0.0
  114   3   1   4 43.535  87.069   0.447    2.92    8       43.0       64.2
  115   0   7   2 43.626  87.251   0.448    2.91    4        9.7        1.6
  116   3   5   2 43.829  87.659   0.45     2.9     8       48.1       79.9
  117   0   3   5 44.071  88.143   0.451    2.88    4       16.5        4.7
  118   3   4   3 44.187  88.374   0.452    2.87    8       10.0        3.4
  119   2   4   4 44.222  88.445   0.453    2.87    8       42.4       61.4
  120   1   5   4 44.635  89.27    0.456    2.85    8       44.8       68.0
  121   4   4   0 44.886  89.773   0.458    2.83    4       43.3       31.7
  122   1   7   2 44.929  89.859   0.458    2.83    8       46.1       71.8
  123   3   2   4 44.976  89.952   0.459    2.83    8        3.2        0.3


  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  10.162  20.323  4.36603      178.1      3.8      3.8     5.6
    2   0   2   0  10.55   21.101  4.20691       82.4      1.8      1.8     5.6
    3   1   1   1  12.583  25.166  3.53576     4692.5    100.0    100.0     5.6
    4   0   2   1  12.903  25.805  3.44964     2421.3     51.6     51.6     5.6
    5   0   0   2  14.81   29.62   3.01346      575.5     12.3     12.2     5.6
    6   1   2   1  15.632  31.263  2.85869       93.5      2.0      2.0     5.6
    7   0   1   2  15.754  31.509  2.83699      516.0     11.0     10.9     5.6
    8   1   0   2  17.265  34.529  2.59539      333.3      7.1      7.0     5.7
    9   2   0   0  17.555  35.111  2.55375      748.8     16.0     15.8     5.7
   10   0   3   1  17.634  35.267  2.54277      130.1      2.8      2.8     5.7
   11   1   1   2  18.095  36.189  2.48008     1177.6     25.1     24.9     5.7
   12   1   3   0  18.26   36.52   2.45836     1315.5     28.0     27.8     5.7
   13   0   2   2  18.326  36.652  2.4498       579.3     12.3     12.2     5.7
   14   2   1   1  19.885  39.771  2.2646       111.7      2.4      2.4     5.7
   15   2   2   0  20.662  41.324  2.18302      480.4     10.2     10.1     5.7
   16   0   4   0  21.481  42.963  2.10346      146.0      3.1      3.1     5.7
   17   2   2   1  22.042  44.084  2.05252     2040.3     43.5     42.7     5.7
   18   0   4   1  22.821  45.643  1.98598      940.1     20.0     19.7     5.7
   19   2   0   2  23.289  46.578  1.94825      766.4     16.3     16.0     5.7
   20   1   3   2  23.852  47.703  1.90489     1353.5     28.8     28.2     5.7
   21   1   1   3  24.965  49.93   1.82504     1115.0     23.8     23.2     5.7
   22   0   2   3  25.144  50.288  1.81287      525.7     11.2     10.9     5.8
   23   2   3   1  25.308  50.616  1.80188       89.9      1.9      1.9     5.8
   24   2   2   2  25.83   51.661  1.76788      185.6      4.0      3.9     5.8
   25   0   4   2  26.525  53.05   1.72482      118.2      2.5      2.4     5.8
   26   3   1   0  27.491  54.982  1.66868      102.8      2.2      2.1     5.8
   27   2   4   0  28.322  56.644  1.62361       87.3      1.9      1.8     5.8
   28   3   1   1  28.619  57.237  1.60818      427.8      9.1      8.8     5.8
   29   1   5   0  28.813  57.626  1.59825       52.6      1.1      1.1     5.8
   30   2   4   1  29.429  58.857  1.56772      418.3      8.9      8.6     5.8
   31   1   5   1  29.908  59.816  1.54486      403.1      8.6      8.3     5.8
   32   3   2   1  30.301  60.602  1.52669       49.0      1.0      1.0     5.8
   33   0   0   4  30.746  61.491  1.50673       64.3      1.4      1.3     5.8
   34   0   1   4  31.289  62.578  1.48314       65.6      1.4      1.3     5.8
   35   2   2   3  31.404  62.808  1.47826      147.3      3.1      3.0     5.9
   36   3   1   2  31.847  63.695  1.45981      138.8      3.0      2.8     5.9
   37   3   3   0  31.957  63.913  1.45534      217.9      4.6      4.4     5.9
   38   0   4   3  32.019  64.038  1.45281       56.8      1.2      1.2     5.9
   39   2   4   2  32.609  65.218  1.42935      146.6      3.1      3.0     5.9
   40   1   1   4  32.739  65.478  1.4243       204.1      4.3      4.2     5.9
   41   0   2   4  32.89   65.78   1.4185        90.9      1.9      1.8     5.9
   42   1   5   2  33.062  66.123  1.41196      139.6      3.0      2.8     5.9
   43   0   6   0  33.319  66.637  1.4023       116.1      2.5      2.4     5.9
   44   3   3   2  35.999  71.998  1.31052      405.8      8.6      8.2     5.9
   45   2   0   4  36.411  72.822  1.2977       178.8      3.8      3.6     6.0
   46   1   3   4  36.842  73.683  1.28464      379.1      8.1      7.6     6.0
   47   3   1   3  36.876  73.751  1.28363      391.8      8.3      7.9     6.0
   48   4   0   0  37.103  74.207  1.27687      178.5      3.8      3.6     6.0
   49   0   6   2  37.291  74.581  1.27139      178.8      3.8      3.6     6.0
   50   2   4   3  37.589  75.178  1.26277      351.8      7.5      7.0     6.0
   51   1   5   3  38.015  76.029  1.25073      340.5      7.3      6.8     6.0
   52   2   2   4  38.402  76.804  1.24004       51.3      1.1      1.0     6.0
   53   2   6   0  38.804  77.609  1.22918      320.2      6.8      6.4     6.0
   54   4   2   1  40.035  80.07   1.19747      228.0      4.9      4.5     6.0
   55   4   0   2  40.933  81.866  1.17569       91.9      2.0      1.8     6.1
   56   3   5   1  41.009  82.018  1.17389      211.3      4.5      4.2     6.1
   57   1   1   5  41.524  83.049  1.16192      183.6      3.9      3.6     6.1
   58   0   2   5  41.663  83.326  1.15876       82.5      1.8      1.6     6.1
   59   1   7   1  42.117  84.233  1.14857      160.2      3.4      3.1     6.1
   60   2   6   2  42.593  85.186  1.13814      166.4      3.5      3.3     6.1
   61   4   2   2  42.865  85.731  1.1323        79.8      1.7      1.6     6.1
   62   3   1   4  43.535  87.069  1.1183        64.2      1.4      1.2     6.1
   63   3   5   2  43.829  87.659  1.1123        79.9      1.7      1.6     6.2
   64   2   4   4  44.222  88.445  1.10443       61.4      1.3      1.2     6.2
   65   1   5   4  44.635  89.27   1.09635       68.0      1.4      1.3     6.2
   66   1   7   2  44.929  89.859  1.09069       71.8      1.5      1.4     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)