Institute of Experimental Mineralogy
Russian Academy of Sciences
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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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BYSTROMITE
1, t-bystromite, g-bystromite
MgSb(2)O(6)
Tetragonal P 4(2)/mnm Z = 2
P4(2)/mnm
18 .4 .1997
Ref.Str.:
Von Heidenstam O. (1968)
* Ark. Kemi, 28, 375-387
Ref.Composition & Lattice:
Povarennyh A. (1966)
* Kristallohim. klassif. mineral. vidov (in russian), 247
Reserv:
N.A.D.
Initial data from BDM-file
Lattice parameters (cub. angs.,degr.):
a = 4.68 alpha = 90.0
b = 4.68 beta = 90.0
c = 9.21 gamma = 90.0
Unit cell volume (cub. angs.) = 201.72
Molar volume ( cub.cm/mol.) = 60.75
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 Mg = 1.00
2 0.0 0.0 0.3329 0.0 Sb = 1.00
3 0.303 0.303 0.0 0.0 O = 1.00
4 0.2986 0.2986 0.3298 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 0.0 0.0 0.3329
3 3 0.303 0.303 0.0
4 4 0.2986 0.2986 0.3298
5 3 0.697 0.697 0.0
6 4 0.7014 0.7014 0.3298
7 1 0.5 0.5 0.5
8 2 0.5 0.5 0.8329
9 3 0.197 0.803 0.5
10 4 0.2014 0.7986 0.8298
11 3 0.803 0.197 0.5
12 4 0.7986 0.2014 0.8298
13 2 0.0 0.0 0.6671
14 4 0.2986 0.2986 0.6702
15 4 0.7014 0.7014 0.6702
16 2 0.5 0.5 0.1671
17 4 0.2014 0.7986 0.1702
18 4 0.7986 0.2014 0.1702
X-ray density (g/cm cub.) = 5.99
MU (1/cm) = 1618.9 Mass attenuation coefficient (cm**2/g) = 270.378
Selected interatomic distances (cation-anion,anion-anion):
NoP Atom Rad.sph. C.N. Distance NoP N.
(angs.) (angs.)
1 Mg 2.52 6
2.0054 3
2.0054 3
2.0577 4
2.0577 4
2.0577 4
2.0577 4
2 Sb 2.712 6
1.9765 4
1.9765 4
2.0171 3
2.0171 3
2.0055 4
2.0055 4
3 O 3.264 11
3.0376 4
2.6077 3
2.8395 4
2.8733 4
2.8395 4
2.8733 4
3.0376 4
2.8395 4
2.8733 4
2.8395 4
2.8733 4
4 O 3.264 11
3.0376 3
2.6659 4
2.8733 3
2.8395 3
2.8733 3
2.8395 3
3.1351 4
2.8006 4
2.8006 4
2.8006 4
2.8006 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 0 0 2 11.2 22.4 0.109 50.12 2 75.9 1418.2
2 1 0 1 12.379 24.759 0.12 40.64 8 72.5 4199.1
3 1 1 0 15.682 31.363 0.151 24.58 4 202.3 9890.0
4 1 1 1 16.691 33.382 0.161 21.48 8 0.5 0.1
5 1 1 2 19.441 38.883 0.186 15.37 8 66.3 1329.0
6 1 0 3 20.392 40.785 0.195 13.82 8 161.5 7089.0
7 2 0 0 22.473 44.946 0.214 11.12 4 125.4 1718.4
8 0 0 4 22.86 45.719 0.217 10.7 2 58.0 177.0
9 1 1 3 23.417 46.834 0.222 10.13 8 56.9 644.8
10 2 1 0 25.301 50.601 0.239 8.5 8 33.4 186.7
11 2 0 2 25.389 50.779 0.24 8.43 8 59.7 591.6
12 2 1 1 25.993 51.986 0.245 7.99 16 59.7 1119.5
13 2 1 2 27.998 55.995 0.262 6.75 16 0.1 0.0
14 1 1 4 28.246 56.491 0.265 6.61 8 56.8 420.1
15 2 1 3 31.147 62.294 0.289 5.31 16 171.9 6174.3
16 1 0 5 31.456 62.913 0.292 5.2 8 57.8 341.8
17 2 2 0 32.723 65.446 0.302 4.77 4 188.1 1659.1
18 2 0 4 33.025 66.049 0.305 4.68 8 55.9 287.1
19 2 2 1 33.315 66.629 0.307 4.59 8 1.0 0.1
20 1 1 5 33.762 67.525 0.311 4.46 8 2.9 0.8
21 2 2 2 35.059 70.118 0.321 4.13 8 56.7 260.8
22 2 1 4 35.278 70.556 0.323 4.08 16 1.9 0.6
23 3 0 1 35.559 71.118 0.325 4.02 8 52.6 218.8
24 0 0 6 35.641 71.283 0.326 4.0 2 195.9 753.7
25 3 1 0 37.185 74.369 0.338 3.69 8 137.4 1368.3
26 3 1 1 37.744 75.489 0.342 3.59 16 0.7 0.1
27 2 2 3 37.886 75.773 0.343 3.56 8 14.8 15.3
28 3 1 2 39.408 78.815 0.355 3.33 16 52.9 367.0
29 1 1 6 39.967 79.934 0.359 3.26 8 147.6 1396.4
30 3 0 3 40.027 80.054 0.36 3.25 8 176.5 1991.7
31 2 1 5 40.306 80.612 0.362 3.22 16 53.6 363.4
32 2 2 4 41.735 83.47 0.372 3.06 8 49.0 144.6
33 3 1 3 42.14 84.281 0.375 3.03 16 21.6 55.5
34 3 2 0 43.559 87.119 0.385 2.91 8 13.0 9.6
35 3 2 1 44.1 88.201 0.389 2.88 16 50.0 282.5
36 2 0 6 44.179 88.357 0.39 2.87 8 107.6 653.8
37 1 0 7 44.925 89.85 0.395 2.83 8 48.7 132.3
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 0 0 2 11.2 22.4 4.605 1418.2 14.3 14.4 5.6
2 1 0 1 12.379 24.759 4.17224 4199.1 42.5 42.7 5.6
3 1 1 0 15.682 31.363 3.30926 9890.0 100.0 100.0 5.6
4 1 1 2 19.441 38.883 2.68733 1329.0 13.4 13.3 5.7
5 1 0 3 20.392 40.785 2.56698 7089.0 71.7 71.1 5.7
6 2 0 0 22.473 44.946 2.34 1718.4 17.4 17.1 5.7
7 0 0 4 22.86 45.719 2.3025 177.0 1.8 1.8 5.7
8 1 1 3 23.417 46.834 2.25065 644.8 6.5 6.4 5.7
9 2 1 0 25.301 50.601 2.09296 186.7 1.9 1.9 5.8
10 2 0 2 25.389 50.779 2.08612 591.6 6.0 5.9 5.8
11 2 1 1 25.993 51.986 2.04092 1119.5 11.3 11.1 5.8
12 1 1 4 28.246 56.491 1.89003 420.1 4.2 4.1 5.8
13 2 1 3 31.147 62.294 1.72932 6174.3 62.4 60.2 5.8
14 1 0 5 31.456 62.913 1.71402 341.8 3.5 3.3 5.9
15 2 2 0 32.723 65.446 1.65463 1659.1 16.8 16.1 5.9
16 2 0 4 33.025 66.049 1.64121 287.1 2.9 2.8 5.9
17 2 2 2 35.059 70.118 1.55716 260.8 2.6 2.5 5.9
18 3 0 1 35.559 71.118 1.53809 218.8 2.2 2.1 5.9
19 0 0 6 35.641 71.283 1.535 753.7 7.6 7.2 5.9
20 3 1 0 37.185 74.369 1.47995 1368.3 13.8 13.1 6.0
21 3 1 2 39.408 78.815 1.40897 367.0 3.7 3.5 6.0
22 1 1 6 39.967 79.934 1.39249 1396.4 14.1 13.2 6.0
23 3 0 3 40.027 80.054 1.39075 1991.7 20.1 18.8 6.0
24 2 1 5 40.306 80.612 1.38275 363.4 3.7 3.4 6.1
25 2 2 4 41.735 83.47 1.34367 144.6 1.5 1.4 6.1
26 3 2 1 44.1 88.201 1.2853 282.5 2.9 2.6 6.2
27 2 0 6 44.179 88.357 1.28349 653.8 6.6 6.0 6.2
28 1 0 7 44.925 89.85 1.26661 132.3 1.3 1.2 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)
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