Institute of Experimental Mineralogy
                 Russian Academy of Sciences
     -------------------------------------------------
           142432, Chernogolovka, Moscow district
             A.V. Chichagov  +7(496)52-22320

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TRIPUHYITE

4, t-bystromite, g-bystromite

FeSbO(4)


Tetragonal  P 4(2)/mnm  Z = 1

P4(2)/mnm

22 .12 .1906

Ref.Str.:

         Basso R., Cabella R., Lucchetti G., Marescotti P., Martinelli A. (2003)

         * Neues Jb. Mineral., Mh., 407-420

Reserv:

         from Djebel Nador, Algeria.  N.A.D.

                   Initial data from BDM-file 

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

             a =   4.6353   alpha =   90.0 
             b =   4.6353   beta  =   90.0 
             c =   3.0694   gamma =   90.0 

    Unit cell volume (cub. angs.) =    65.95

    Molar volume ( cub.cm/mol.) =    39.72

  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    Fe    = 0.5 , Sb    = 0.5 
   2 0.302   0.302   0.0      0.0    O     = 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     0.302      0.302      0.0   
     3       2     0.698      0.698      0.0   
     4       1     0.5        0.5        0.5   
     5       2     0.198      0.802      0.5   
     6       2     0.802      0.198      0.5   


X-ray density (g/cm cub.)   =      6.08

MU (1/cm) =    1301.12     Mass attenuation coefficient (cm**2/g) =    213.964

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

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

    1   Fe   ,Sb             2.712        6
                                                 1.9797       2
                                                 1.9797       2
                                                 2.01         2
                                                 2.01         2
                                                 2.01         2
                                                 2.01         2
    2    O                   3.264       11
                                                 3.0694       2
                                                 3.0694       2
                                                 2.5959       2
                                                 2.8212       2
                                                 2.8212       2
                                                 2.8212       2
                                                 2.8212       2
                                                 2.8212       2
                                                 2.8212       2
                                                 2.8212       2
                                                 2.8212       2

  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   0 15.837  31.673   0.153   24.07    4       68.3    10315.0
    2   1   0   1 20.457  40.915   0.195   13.73    8       54.1     7395.1
    3   2   0   0 22.702  45.403   0.216   10.87    4       42.5     1806.8
    4   1   1   1 23.531  47.061   0.223   10.02    8       18.8      650.3
    5   2   1   0 25.562  51.124   0.241    8.3     8       11.4      198.0
    6   2   1   1 31.377  62.755   0.291    5.23   16       57.2     6299.0
    7   2   2   0 33.079  66.157   0.305    4.66    4       61.9     1644.3
    8   0   0   2 35.649  71.299   0.326    4.0     2       65.2      780.6
    9   3   1   0 37.605  75.21    0.341    3.61    8       45.1     1350.9
   10   2   2   1 38.222  76.445   0.346    3.51    8        5.2       17.6
   11   1   1   2 40.057  80.114   0.36     3.25    8       48.9     1428.4
   12   3   0   1 40.399  80.798   0.362    3.21    8       58.5     2016.5
   13   3   1   1 42.549  85.099   0.378    2.99   16        6.8       50.3
   14   3   2   0 44.087  88.174   0.389    2.88    8        4.2        9.4
   15   2   0   2 44.348  88.697   0.391    2.86    8       35.4      661.2


  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   0  15.837  31.673  3.27767    10315.0    100.0    100.0     5.6
    2   1   0   1  20.457  40.915  2.55919     7395.1     71.7     71.1     5.7
    3   2   0   0  22.702  45.403  2.31766     1806.8     17.5     17.3     5.7
    4   1   1   1  23.531  47.061  2.24041      650.3      6.3      6.2     5.7
    5   2   1   0  25.562  51.124  2.07298      198.0      1.9      1.9     5.8
    6   2   1   1  31.377  62.755  1.71789     6299.0     61.1     58.9     5.9
    7   2   2   0  33.079  66.157  1.63884     1644.3     15.9     15.3     5.9
    8   0   0   2  35.649  71.299  1.5347       780.6      7.6      7.2     5.9
    9   3   1   0  37.605  75.21   1.46582     1350.9     13.1     12.4     6.0
   10   1   1   2  40.057  80.114  1.38989     1428.4     13.8     12.9     6.0
   11   3   0   1  40.399  80.798  1.38011     2016.5     19.5     18.2     6.1
   12   2   0   2  44.348  88.697  1.27959      661.2      6.4      5.9     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)