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
1, t-spinel, f-oxospinelides, sf-spinel, s-spinel
MnAl(2)O(4)
Cubic F d3m Z = 8
Fd3m
14 .4 .1994
Ref.Str.:
T.Yamanaka, Y.Takeuchi, M.Tokonami (1984)
* Acta Cryst., B40, 96-102
Ref.Composition & Lattice:
Povarennih A.S. (1966)
* Kristallohim. klassif. miner. vidov
Reserv:
The coordinates of atoms are from spinel. N.A.D.
Initial data from BDM-file
Lattice parameters (cub. angs.,degr.):
a = 8.29 alpha = 90.0
b = 8.29 beta = 90.0
c = 8.29 gamma = 90.0
Unit cell volume (cub. angs.) = 569.72
Molar volume ( cub.cm/mol.) = 42.9
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 0.56 Mn = 1.00
2 0.625 0.625 0.625 0.61 Al = 1.00
3 0.3873 0.3873 0.3873 0.85 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 0.625 0.625 0.625
3 3 0.3873 0.3873 0.3873
4 1 0.75 0.75 0.25
5 1 0.0 0.5 0.5
6 1 0.25 0.75 0.75
7 2 0.125 0.375 0.875
8 2 0.375 0.875 0.125
9 2 0.875 0.125 0.375
10 3 0.3627 0.1373 0.6373
11 3 0.6127 0.1127 0.8873
12 3 0.6373 0.3627 0.1373
13 1 0.75 0.25 0.75
14 1 0.5 0.0 0.5
15 2 0.125 0.875 0.375
16 2 0.875 0.375 0.125
17 2 0.375 0.125 0.875
18 3 0.3627 0.6373 0.1373
19 3 0.1127 0.6127 0.8873
20 3 0.1373 0.3627 0.6373
21 1 0.25 0.25 0.25
22 1 0.5 0.5 0.0
23 2 0.375 0.375 0.625
24 2 0.375 0.625 0.375
25 2 0.125 0.625 0.125
26 2 0.875 0.625 0.875
27 2 0.125 0.125 0.625
28 2 0.625 0.375 0.375
29 2 0.625 0.125 0.125
30 2 0.625 0.875 0.875
31 2 0.875 0.875 0.625
32 3 0.6127 0.6127 0.3873
33 3 0.1373 0.8627 0.1373
34 3 0.8873 0.3873 0.8873
35 3 0.6373 0.8627 0.6373
36 3 0.8873 0.8873 0.3873
37 3 0.8627 0.1373 0.1373
38 3 0.3873 0.8873 0.8873
39 3 0.8627 0.6373 0.6373
40 3 0.1127 0.1127 0.3873
41 3 0.3873 0.6127 0.6127
42 3 0.6127 0.3873 0.6127
43 3 0.1373 0.6373 0.3627
44 3 0.8627 0.3627 0.3627
45 3 0.1127 0.3873 0.1127
46 3 0.8873 0.6127 0.1127
47 3 0.3627 0.3627 0.8627
48 3 0.6373 0.6373 0.8627
49 3 0.6127 0.8873 0.1127
50 3 0.3873 0.1127 0.1127
51 3 0.3627 0.8627 0.3627
52 3 0.6373 0.1373 0.3627
53 3 0.8627 0.8627 0.8627
54 3 0.1373 0.1373 0.8627
55 3 0.8873 0.1127 0.6127
56 3 0.1127 0.8873 0.6127
X-ray density (g/cm cub.) = 4.03
MU (1/cm) = 443.251 Mass attenuation coefficient (cm**2/g) = 109.984
Selected interatomic distances (cation-anion,anion-anion):
NoP Atom Rad.sph. C.N. Distance NoP N.
(angs.) (angs.)
1 Mn 2.724 4
1.9714 3
1.9714 3
1.9714 3
1.9714 3
2 Al 2.316 6
1.9758 3
1.9758 3
1.9758 3
1.9758 3
1.9758 3
1.9758 3
3 O 3.264 12
2.938 3
2.938 3
2.938 3
2.938 3
2.6426 3
3.2194 3
2.6426 3
2.6426 3
2.938 3
3.2194 3
3.2194 3
2.938 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 9.261 18.523 0.104 74.29 8 6.9 8.6
2 2 2 0 15.237 30.474 0.171 26.15 12 158.3 2421.6
3 1 1 3 17.949 35.898 0.2 18.33 24 168.7 3855.5
4 2 2 2 18.776 37.552 0.209 16.6 8 20.2 16.7
5 4 0 0 21.818 43.637 0.241 11.88 6 147.9 480.2
6 3 3 1 23.892 47.784 0.263 9.68 24 50.2 180.3
7 4 2 0 24.553 49.106 0.27 9.1 24 0.0 0.0
8 2 2 4 27.078 54.155 0.295 7.28 24 115.0 711.9
9 1 1 5 28.869 57.738 0.313 6.29 24 170.1 1346.2
10 3 3 3 28.869 57.738 0.313 6.29 8 100.9 157.9
11 4 4 0 31.71 63.42 0.341 5.11 12 315.2 1875.8
12 5 3 1 33.347 66.693 0.357 4.58 48 6.2 2.6
13 4 4 2 33.883 67.766 0.362 4.43 24 8.9 2.6
14 6 2 0 35.991 71.982 0.381 3.92 24 89.9 234.2
15 3 3 5 37.539 75.077 0.396 3.62 24 115.2 355.7
16 2 2 6 38.049 76.099 0.4 3.54 24 26.7 18.7
17 4 4 4 40.072 80.143 0.418 3.25 8 79.0 50.0
18 1 1 7 41.572 83.144 0.431 3.08 24 27.6 17.3
19 5 5 1 41.572 83.144 0.431 3.08 24 16.9 6.5
20 6 4 0 42.07 84.139 0.435 3.03 24 0.0 0.0
21 6 4 2 44.053 88.106 0.451 2.88 48 86.0 315.0
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 15.237 30.474 2.93096 2421.6 62.8 63.1 5.6
2 1 1 3 17.949 35.898 2.49953 3855.5 100.0 100.0 5.7
3 4 0 0 21.818 43.637 2.0725 480.2 12.5 12.4 5.7
4 3 3 1 23.892 47.784 1.90186 180.3 4.7 4.6 5.7
5 2 2 4 27.078 54.155 1.69219 711.9 18.5 18.1 5.8
6 1 1 5 28.869 57.738 1.59541 1504.1 39.0 38.0 5.8
7 4 4 0 31.71 63.42 1.46548 1875.8 48.7 47.0 5.9
8 6 2 0 35.991 71.982 1.31076 234.2 6.1 5.8 5.9
9 3 3 5 37.539 75.077 1.26421 355.7 9.2 8.7 6.0
10 4 4 4 40.072 80.143 1.19656 50.0 1.3 1.2 6.0
11 6 4 2 44.053 88.106 1.1078 315.0 8.2 7.5 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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