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CC=Collection Code: [AB2X4]=ANX Form: [cF56]=Pearson: [e d a]=Wyckoff Symbol: [Al2MgO4]=Structure Type:
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Title
Ar, N2, and C O2 in the structural cavities of cordierite, an optical and X-ray single-crystal study.
Authors
Armbruster, T.
Reference
Physics and Chemistry of Minerals (1985)
12
, 233-245
Link
XRef
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Compound
Al4 Ar0.72 Fe0.09 Mg1.91 Na0.05 O18 Si5
-
[Cordierite]
Argon sodium magnesium iron tecto-tetraalumopentasilicate (0.72/0.05/1.91/0.09/1)
[
AB40C80D100N14X360
] [
oS119
] [
m3 l6 k g c b a
] [
]
Cell
17.0689(20), 9.718(1), 9.355(1), 90., 90., 90.
CCCM (66)
V=1551.77
Remarks
R=0.021000 : M =Cordierite : D
Atom (site) Oxid.
x, y, z, B, Occupancy
O1
(16m)
-2
O2
(16m)
-2
O3
(16m)
-2
O4
(8l)
-2
O5
(8l)
-2
O6
(8l)
-2
Al1
(8k)
3
Si1
(4b)
4
Si2
(8l)
4
Si3
(8l)
4
Al2
(8l)
3
Mg1
(8g)
2
Fe1
(8g)
2
Na1
(4c)
1
Ar1
(4a)
0
0.24
0.89
0.35
0
1
0.06
0.58
0.34
0
1
0.82
0.68
0.35
0
1
0.04
0.74
0
0
1
0.12
0.18
0
0
1
0.16
0.92
0
0
1
0.25
0.25
0.24
0
1
0
0.5
0.25
0
1
0.19
0.07
0
0
1
0.86
0.23
0
0
1
0.05
0.30
0
0
1
0.33
0
0.25
0
0.95
0.33
0
0.25
0
0.04
0
0
0
0
0.05
0
0
0.25
0
0.72
Atom (site) Oxid.
U11, U22, U33, U12, U13, U23
O1
(16m)
-2
O2
(16m)
-2
O3
(16m)
-2
O4
(8l)
-2
O5
(8l)
-2
O6
(8l)
-2
Al1
(8k)
3
Si1
(4b)
4
Si2
(8l)
4
Si3
(8l)
4
Al2
(8l)
3
Mg1
(8g)
2
Fe1
(8g)
2
Na1
(4c)
1
Ar1
(4a)
0
0.00
0.00
0.00
-.00
0.00
-.00
0.00
0.00
0.00
-.00
0.00
-.00
0.00
0.00
0.00
0.00
-.00
-.00
0.00
0.01
0.01
-.00
0
0
0.00
0.00
0.01
0.00
0
0
0.01
0.00
0.01
-.00
0
0
0.00
0.00
0.00
0.00
0
0
0.00
0.00
0.00
0
0
0
0.00
0.00
0.00
0.00
0
0
0.00
0.00
0.00
-.00
0
0
0.00
0.00
0.00
0.00
0
0
0.00
0.00
0.00
0
0
-.00
0.00
0.00
0.00
0
0
-.00
0.05
0.03
0.09
0
0
0
0.09
0.05
0.04
0
0
0
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