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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GALAXITE
2, t-spinel, f-oxospinelides, sf-spinel, s-spinel
Mn(0.89)Al(2.11)O(4)
Cubic * Fd3m Z = 8
*Fd3m
6 .9 .1907
Ref.Str.:
Essene E.J., Peacor D.R. (1983)
* Amer. Mineral., 68, 449-455
Reserv:
N.A.D.
Initial data from BDM-file
Lattice parameters (cub. angs.,degr.):
a = 8.181 alpha = 90.0
b = 8.181 beta = 90.0
c = 8.181 gamma = 90.0
Unit cell volume (cub. angs.) = 547.54
Molar volume ( cub.cm/mol.) = 41.23
Co-ordinates, thermal parameters, occupation for atomic positions:
NoP x/a y/b z/c B(j) atom / occupation
1 0.125 0.125 0.125 0.0 Mn = 0.89, Al = 0.11
2 0.5 0.5 0.5 0.0 Al = 1.00
3 0.2655 0.2655 0.2655 0.0 O = 1.00
Co-ordinates for all atomic positions :
No NoP x/a y/b z/c
1 1 0.125 0.125 0.125
2 2 0.5 0.5 0.5
3 3 0.2655 0.2655 0.2655
4 1 0.875 0.875 0.875
5 3 0.7345 0.7345 0.7345
6 1 0.375 0.875 0.375
7 1 0.625 0.125 0.625
8 1 0.375 0.375 0.875
9 2 0.0 0.25 0.75
10 2 0.25 0.75 0.0
11 2 0.75 0.0 0.25
12 3 0.2345 0.0155 0.5155
13 3 0.4845 0.9845 0.7655
14 3 0.5155 0.2345 0.0155
15 1 0.625 0.625 0.125
16 1 0.875 0.375 0.375
17 1 0.125 0.625 0.625
18 3 0.7655 0.4845 0.9845
19 3 0.0155 0.5155 0.2345
20 3 0.9845 0.7655 0.4845
21 2 0.0 0.75 0.25
22 2 0.75 0.25 0.0
23 2 0.25 0.0 0.75
24 3 0.2345 0.5155 0.0155
25 3 0.9845 0.4845 0.7655
26 3 0.0155 0.2345 0.5155
27 3 0.7655 0.9845 0.4845
28 3 0.5155 0.0155 0.2345
29 3 0.4845 0.7655 0.9845
30 2 0.25 0.25 0.5
31 2 0.25 0.5 0.25
32 2 0.0 0.5 0.0
33 2 0.75 0.5 0.75
34 2 0.0 0.0 0.5
35 2 0.5 0.25 0.25
36 2 0.5 0.0 0.0
37 2 0.5 0.75 0.75
38 2 0.75 0.75 0.5
39 3 0.4845 0.4845 0.2655
40 3 0.0155 0.7345 0.0155
41 3 0.7655 0.2655 0.7655
42 3 0.5155 0.7345 0.5155
43 3 0.7655 0.7655 0.2655
44 3 0.7345 0.0155 0.0155
45 3 0.2655 0.7655 0.7655
46 3 0.7345 0.5155 0.5155
47 3 0.9845 0.9845 0.2655
48 3 0.0155 0.0155 0.7345
49 3 0.4845 0.2655 0.4845
50 3 0.2345 0.7345 0.2345
51 3 0.9845 0.2655 0.9845
52 3 0.2345 0.2345 0.7345
53 3 0.2655 0.4845 0.4845
54 3 0.7345 0.2345 0.2345
55 3 0.2655 0.9845 0.9845
56 3 0.5155 0.5155 0.7345
X-ray density (g/cm cub.) = 4.12
MU (1/cm) = 422.931 Mass attenuation coefficient (cm**2/g) = 102.683
Selected interatomic distances (cation-anion,anion-anion):
NoP Atom Rad.sph. C.N. Distance NoP N.
(angs.) (angs.)
1 Mn ,Al 2.724 4
1.9909 3
1.9909 3
1.9909 3
1.9909 3
2 Al 2.316 6
1.9268 3
1.9268 3
1.9268 3
1.9268 3
1.9268 3
1.9268 3
3 O 3.264 12
2.9035 3
2.9035 3
2.9035 3
2.9035 3
2.9035 3
2.9035 3
2.5338 3
3.2511 3
2.5338 3
3.2511 3
2.5338 3
3.2511 3
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 1 1 1 9.386 18.772 0.106 72.28 8 6.6 8.3
2 2 2 0 15.445 30.89 0.173 25.4 12 154.5 2426.0
3 3 1 0 17.322 34.644 0.193 19.81 24 0.0 0.0
4 1 1 3 18.196 36.393 0.203 17.79 24 164.1 3833.1
5 2 2 2 19.036 38.072 0.212 16.11 8 18.2 14.2
6 4 0 0 22.124 44.249 0.244 11.52 6 157.3 570.2
7 3 3 1 24.231 48.461 0.266 9.37 24 53.1 211.7
8 2 2 4 27.469 54.937 0.299 7.05 24 111.8 704.9
9 1 1 5 29.291 58.582 0.318 6.09 24 182.6 1626.1
10 3 3 3 29.291 58.582 0.318 6.09 8 91.4 135.9
11 4 4 0 32.183 64.365 0.346 4.94 12 325.8 2100.6
12 5 3 0 33.299 66.598 0.356 4.6 24 0.0 0.0
13 5 3 1 33.85 67.701 0.362 4.44 48 0.6 0.0
14 4 4 2 34.397 68.795 0.367 4.29 24 15.2 8.0
15 6 2 0 36.547 73.095 0.387 3.81 24 87.3 232.4
16 3 3 5 38.128 76.255 0.401 3.52 24 122.4 422.3
17 2 2 6 38.649 77.299 0.405 3.44 24 33.4 30.7
18 4 4 4 40.717 81.434 0.423 3.17 8 88.9 66.9
19 7 1 0 41.742 83.484 0.432 3.06 24 0.0 0.0
20 1 1 7 42.253 84.505 0.436 3.02 24 31.6 24.2
21 5 5 1 42.253 84.505 0.436 3.02 24 30.5 22.5
22 6 4 2 44.796 89.593 0.457 2.84 48 94.1 402.3
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 2 2 0 15.445 30.89 2.89242 2426.0 63.3 63.6 5.6
2 1 1 3 18.196 36.393 2.46666 3833.1 100.0 100.0 5.7
3 4 0 0 22.124 44.249 2.04525 570.2 14.9 14.8 5.7
4 3 3 1 24.231 48.461 1.87685 211.7 5.5 5.5 5.7
5 2 2 4 27.469 54.937 1.66994 704.9 18.4 18.0 5.8
6 1 1 5 29.291 58.582 1.57443 1762.0 46.0 44.8 5.8
7 4 4 0 32.183 64.365 1.44621 2100.6 54.8 52.9 5.9
8 6 2 0 36.547 73.095 1.29353 232.4 6.1 5.8 6.0
9 3 3 5 38.128 76.255 1.24759 422.3 11.0 10.4 6.0
10 4 4 4 40.717 81.434 1.18083 66.9 1.7 1.6 6.1
11 1 1 7 42.253 84.505 1.14557 46.6 1.2 1.1 6.1
12 6 4 2 44.796 89.593 1.09323 402.3 10.5 9.6 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)
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