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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ALMANDINE

2, t-garnet, at 300'K, s-garnet

Fe(3)Al(2)Si(3)O(12)


Cubic  I a3d  Z = 8

R =0.056          NR =107

27 .5 .1993

Ref.Str.:

         Prandl W. (1971)

         * Z. Kristallogr., 134, 333-343

Reserv:

         T.V.Ush.

                   Initial data from BDM-file 

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

             a =  11.507    alpha =   90.0 
             b =  11.507    beta  =   90.0 
             c =  11.507    gamma =   90.0 

    Unit cell volume (cub. angs.) =  1523.65

    Molar volume ( cub.cm/mol.) =   114.72

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

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

   1 0.375   0.0     0.25     0.05   Si    = 1.00
   2 0.0     0.0     0.0      0.25   Al    = 1.00
   3 0.125   0.0     0.25     0.63   Fe    = 1.00
   4 0.966   0.0494  0.1528   0.2    O     = 1.00


  Co-ordinates for all atomic positions :

   No       NoP      x/a        y/b       z/c 

     1       1     0.375      0.0        0.25  
     2       2     0.0        0.0        0.0   
     3       3     0.125      0.0        0.25  
     4       4     0.966      0.0494     0.1528
     5       1     0.625      0.0        0.75  
     6       3     0.875      0.0        0.75  
     7       4     0.034      0.9506     0.8472
     8       1     0.75       0.625      0.0   
     9       1     0.125      0.0        0.75  
    10       1     0.75       0.375      0.5   
    11       2     0.75       0.25       0.75  
    12       2     0.5        0.0        0.5   
    13       2     0.75       0.75       0.25  
    14       3     0.75       0.375      0.0   
    15       3     0.375      0.0        0.75  
    16       3     0.75       0.625      0.5   
    17       4     0.7006     0.216      0.9028
    18       4     0.534      0.9506     0.6528
    19       4     0.7994     0.784      0.4028
    20       1     0.75       0.875      0.5   
    21       1     0.875      0.0        0.25  
    22       1     0.75       0.125      0.0   
    23       3     0.75       0.125      0.5   
    24       3     0.625      0.0        0.25  
    25       3     0.75       0.875      0.0   
    26       4     0.7994     0.284      0.5972
    27       4     0.466      0.0494     0.3472
    28       4     0.7006     0.716      0.0972
    29       2     0.0        0.0        0.5   
    30       4     0.034      0.0494     0.6528
    31       4     0.966      0.9506     0.3472
    32       1     0.25       0.625      0.5   
    33       1     0.25       0.375      0.0   
    34       2     0.25       0.25       0.25  
    35       2     0.5        0.0        0.0   
    36       2     0.25       0.75       0.75  
    37       3     0.25       0.375      0.5   
    38       3     0.25       0.625      0.0   
    39       4     0.2994     0.216      0.4028
    40       4     0.466      0.9506     0.1528
    41       4     0.2006     0.784      0.9028
    42       1     0.25       0.875      0.0   
    43       1     0.25       0.125      0.5   
    44       3     0.25       0.125      0.0   
    45       3     0.25       0.875      0.5   
    46       4     0.2006     0.284      0.0972
    47       4     0.534      0.0494     0.8472
    48       4     0.2994     0.716      0.5972
    49       1     0.125      0.5        0.25  
    50       2     0.5        0.5        0.5   
    51       3     0.375      0.5        0.25  
    52       4     0.534      0.4507     0.3472
    53       1     0.875      0.5        0.75  
    54       3     0.625      0.5        0.75  
    55       4     0.466      0.5494     0.6528
    56       1     0.375      0.5        0.75  
    57       2     0.0        0.5        0.0   
    58       3     0.125      0.5        0.75  
    59       4     0.966      0.5494     0.8472
    60       1     0.625      0.5        0.25  
    61       3     0.875      0.5        0.25  
    62       4     0.034      0.4506     0.1528
    63       2     0.5        0.5        0.0   
    64       4     0.466      0.4507     0.8472
    65       4     0.534      0.5494     0.1528
    66       2     0.0        0.5        0.5   
    67       4     0.034      0.5494     0.3472
    68       4     0.966      0.4506     0.6528
    69       1     0.0        0.25       0.375 
    70       3     0.0        0.25       0.125 
    71       4     0.0494     0.1528     0.966 
    72       4     0.1528     0.966      0.0494
    73       1     0.0        0.75       0.625 
    74       3     0.0        0.75       0.875 
    75       4     0.9506     0.8472     0.034 
    76       4     0.8472     0.034      0.9506
    77       1     0.0        0.75       0.125 
    78       1     0.5        0.75       0.375 
    79       3     0.0        0.75       0.375 
    80       3     0.5        0.75       0.625 
    81       4     0.216      0.9028     0.7006
    82       4     0.9028     0.7006     0.216 
    83       4     0.9506     0.6528     0.534 
    84       4     0.6528     0.534      0.9506
    85       4     0.784      0.4028     0.7994
    86       4     0.4028     0.7994     0.784 
    87       1     0.5        0.75       0.875 
    88       1     0.0        0.25       0.875 
    89       3     0.5        0.75       0.125 
    90       3     0.0        0.25       0.625 
    91       4     0.284      0.5972     0.7994
    92       4     0.5972     0.7994     0.284 
    93       4     0.0494     0.3472     0.466 
    94       4     0.3472     0.466      0.0494
    95       4     0.716      0.0972     0.7006
    96       4     0.0972     0.7006     0.716 
    97       4     0.0494     0.6528     0.034 
    98       4     0.6528     0.034      0.0494
    99       4     0.9506     0.3472     0.966 
   100       4     0.3472     0.966      0.9506
   101       1     0.5        0.25       0.625 
   102       3     0.5        0.25       0.375 
   103       4     0.216      0.4028     0.2994
   104       4     0.4028     0.2994     0.216 
   105       4     0.9506     0.1528     0.466 
   106       4     0.1528     0.466      0.9506
   107       4     0.784      0.9028     0.2006
   108       4     0.9028     0.2006     0.784 
   109       1     0.5        0.25       0.125 
   110       3     0.5        0.25       0.875 
   111       4     0.284      0.0972     0.2006
   112       4     0.0972     0.2006     0.284 
   113       4     0.0494     0.8472     0.534 
   114       4     0.8472     0.534      0.0494
   115       4     0.716      0.5972     0.2994
   116       4     0.5972     0.2994     0.716 
   117       4     0.4507     0.3472     0.534 
   118       4     0.3472     0.534      0.4507
   119       4     0.5494     0.6528     0.466 
   120       4     0.6528     0.466      0.5494
   121       4     0.5494     0.8472     0.966 
   122       4     0.8472     0.966      0.5494
   123       4     0.4506     0.1528     0.034 
   124       4     0.1528     0.034      0.4506
   125       4     0.4507     0.8472     0.466 
   126       4     0.8472     0.466      0.4507
   127       4     0.5494     0.1528     0.534 
   128       4     0.1528     0.534      0.5494
   129       4     0.5494     0.3472     0.034 
   130       4     0.3472     0.034      0.5494
   131       4     0.4506     0.6528     0.966 
   132       4     0.6528     0.966      0.4506
   133       2     0.25       0.25       0.75  
   134       2     0.25       0.75       0.25  
   135       4     0.2994     0.284      0.9028
   136       4     0.2006     0.716      0.4028
   137       4     0.2006     0.216      0.5972
   138       4     0.2994     0.784      0.0972
   139       2     0.75       0.25       0.25  
   140       2     0.75       0.75       0.75  
   141       4     0.7006     0.284      0.4028
   142       4     0.7994     0.716      0.9028
   143       4     0.7994     0.216      0.0972
   144       4     0.7006     0.784      0.5972
   145       4     0.784      0.5972     0.7006
   146       4     0.0972     0.7994     0.216 
   147       4     0.216      0.0972     0.7994
   148       4     0.5972     0.7006     0.784 
   149       4     0.716      0.9028     0.7994
   150       4     0.4028     0.7006     0.284 
   151       4     0.284      0.4028     0.7006
   152       4     0.9028     0.7994     0.716 
   153       4     0.784      0.0972     0.2994
   154       4     0.5972     0.2006     0.216 
   155       4     0.216      0.5972     0.2006
   156       4     0.0972     0.2994     0.784 
   157       4     0.716      0.4028     0.2006
   158       4     0.9028     0.2994     0.284 
   159       4     0.284      0.9028     0.2994
   160       4     0.4028     0.2006     0.716 


X-ray density (g/cm cub.)   =      4.34

MU (1/cm) =     210.586    Mass attenuation coefficient (cm**2/g) =     48.541

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

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

    1    Si                  2.1          4
                                                 1.6338       4
                                                 1.6338       4
                                                 1.6338       4
                                                 1.6338       4
    2    Al                  2.316        6
                                                 1.889        4
                                                 1.889        4
                                                 1.889        4
                                                 1.889        4
                                                 1.889        4
                                                 1.889        4
    3    Fe                  2.592        8
                                                 2.2179       4
                                                 2.2179       4
                                                 2.3636       4
                                                 2.2179       4
                                                 2.3636       4
                                                 2.3636       4
                                                 2.3636       4
                                                 2.2179       4
    4    O                   3.264        9
                                                 2.5079       4
                                                 2.638        4
                                                 2.638        4
                                                 2.7046       4
                                                 2.7046       4
                                                 2.7446       4
                                                 2.7542       4
                                                 2.7869       4
                                                 2.7446       4

  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   1   2 10.976  21.953   0.106   52.27   24       64.7      226.4
    2   2   2   0 12.701  25.401   0.123   38.51   12       69.8       96.9
    3   3   2   1 16.909  33.817   0.163   20.88   48       55.7      133.7
    4   4   0   0 18.115  36.23    0.174   17.96    6      440.2      899.7
    5   4   2   0 20.342  40.685   0.194   13.9    24      447.1     2872.7
    6   3   3   2 21.383  42.765   0.204   12.43   24       75.9       74.1
    7   2   2   4 22.384  44.767   0.213   11.22   24      223.8      580.7
    8   4   3   1 23.351  46.701   0.222   10.19   48      112.3      265.7
    9   5   2   1 25.198  50.397   0.238    8.57   48      162.8      469.8
   10   4   4   0 26.086  52.172   0.246    7.92   12      162.1      107.7
   11   1   1   6 28.631  57.263   0.268    6.41   24      212.2      298.5
   12   5   3   2 28.631  57.263   0.268    6.41   48      150.4      299.8
   13   6   2   0 29.447  58.894   0.275    6.02   24       29.0        5.2
   14   5   4   1 30.249  60.498   0.282    5.67   48       18.0        3.8
   15   6   3   1 31.817  63.633   0.295    5.07   48       25.5        6.8
   16   4   4   4 32.584  65.169   0.301    4.81    8      515.0      439.9
   17   5   4   3 33.343  66.686   0.307    4.58   48       27.0        6.9
   18   6   4   0 34.093  68.185   0.313    4.37   24      436.1      860.0
   19   3   3   6 34.835  69.669   0.319    4.18   24       67.7       19.8
   20   5   5   2 34.835  69.669   0.319    4.18   24      107.5       50.0
   21   7   2   1 34.835  69.669   0.319    4.18   48       47.9       19.9
   22   6   4   2 35.57   71.139   0.325    4.01   48      346.7      997.3
   23   6   5   1 37.739  75.477   0.342    3.59   48       62.3       28.8
   24   7   3   2 37.739  75.477   0.342    3.59   48        3.9        0.1
   25   8   0   0 38.452  76.903   0.348    3.47    6      555.3      276.7
   26   7   4   1 39.161  78.321   0.353    3.37   48       65.4       29.8
   27   8   2   0 39.866  79.732   0.358    3.27   24       44.9        6.8
   28   6   5   3 40.568  81.136   0.364    3.19   48       15.1        1.5
   29   2   2   8 41.268  82.535   0.369    3.11   24       15.5        0.8
   30   6   6   0 41.268  82.535   0.369    3.11   12       66.1        7.0
   31   7   4   3 41.965  83.93    0.374    3.04   48       37.1        8.7
   32   8   3   1 41.965  83.93    0.374    3.04   48       10.1        0.6
   33   7   5   2 43.354  86.709   0.384    2.93   48        0.4        0.0
   34   8   4   0 44.048  88.095   0.389    2.88   24      282.1      237.0


  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   1   2  10.976  21.953  4.69771      226.4      7.9      8.0     5.6
    2   2   2   0  12.701  25.401  4.06834       96.9      3.4      3.4     5.6
    3   3   2   1  16.909  33.817  3.07538      133.7      4.7      4.7     5.7
    4   4   0   0  18.115  36.23   2.87675      899.7     31.3     31.5     5.7
    5   4   2   0  20.342  40.685  2.57304     2872.7    100.0    100.0     5.7
    6   3   3   2  21.383  42.765  2.4533        74.1      2.6      2.6     5.7
    7   2   2   4  22.384  44.767  2.34886      580.7     20.2     20.1     5.7
    8   4   3   1  23.351  46.701  2.25671      265.7      9.3      9.2     5.7
    9   5   2   1  25.198  50.397  2.10088      469.8     16.4     16.2     5.8
   10   4   4   0  26.086  52.172  2.03417      107.7      3.7      3.7     5.8
   11   5   3   2  28.631  57.263  1.86668      598.3     20.8     20.4     5.8
   12   4   4   4  32.584  65.169  1.66089      439.9     15.3     14.8     5.9
   13   6   4   0  34.093  68.185  1.59573      860.0     29.9     28.9     5.9
   14   7   2   1  34.835  69.669  1.5659        89.7      3.1      3.0     5.9
   15   6   4   2  35.57   71.139  1.53769      997.3     34.7     33.3     5.9
   16   6   5   1  37.739  75.477  1.46139       28.9      1.0      1.0     6.0
   17   8   0   0  38.452  76.903  1.43837      276.7      9.6      9.1     6.0
   18   7   4   1  39.161  78.321  1.41641       29.8      1.0      1.0     6.0
   19   8   4   0  44.048  88.095  1.28652      237.0      8.3      7.6     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)