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Maghemite |
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Pecharroman C, Gonzalez-Carreno T, Iglesias J E |
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Physics and Chemistry of Minerals 22 (1995) 21-29 |
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The infrared dielectric properties of maghemite, gamma-Fe2O3, |
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from reflectance measurement on pressed powders |
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Sample: a) idealized |
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_database_code_amcsd 0007898 |
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8.33 8.33 8.33 90 90 90 *Fd3m |
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.125 .125 .125 |
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atom x y z occ |
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Fe-oct 1/2 1/2 1/2 5/6 |
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Fe-tet 1/8 1/8 1/8 |
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O 1/4 1/4 1/4 |
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| Download AMC data (View Text File)
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View JMOL 3-D Structure
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Maghemite |
|
Pecharroman C, Gonzalez-Carreno T, Iglesias J E |
| |
Physics and Chemistry of Minerals 22 (1995) 21-29 |
|
The infrared dielectric properties of maghemite, gamma-Fe2O3, |
|
from reflectance measurement on pressed powders |
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Sample: b) idealized |
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_database_code_amcsd 0007899 |
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8.33 8.33 8.33 90 90 90 P4_132 |
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atom x y z occ |
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Fe-oct1 7/8 7/8 7/8 1/3 |
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Fe-oct2 1/8 7/8 1/8 |
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Fe-tet 4/8 4/8 4/8 |
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O1 1/8 1/8 5/8 |
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O2 5/8 5/8 5/8 |
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| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure
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Maghemite |
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Pecharroman C, Gonzalez-Carreno T, Iglesias J E |
| |
Physics and Chemistry of Minerals 22 (1995) 21-29 |
|
The infrared dielectric properties of maghemite, gamma-Fe2O3, |
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from reflectance measurement on pressed powders |
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Sample: c) idealized, either one of Fe-oct 1-6, |
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or both Fe-oct 6-7 have zero occupancy |
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_database_code_amcsd 0007900 |
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8.33 8.33 24.99 90 90 90 P4_32_12 |
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atom x y z occ |
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Fe-oct1 5/8 3/8 2/24 |
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Fe-oct2 1/8 5/8 0 |
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Fe-oct3 3/8 1/8 2/24 |
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Fe-oct4 1/8 7/8 2/24 |
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Fe-oct5 7/8 5/8 2/24 |
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Fe-oct6 3/8 3/8 0 0 |
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Fe-oct7 7/8 7/8 0 |
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Fe-tet1 4/8 6/8 1/24 |
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Fe-tet2 0 2/8 1/24 |
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Fe-tet3 2/8 4/8 3/24 |
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O1 1/8 1/8 2/24 |
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O2 5/8 5/8 2/24 |
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O3 5/8 3/8 0 |
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O4 3/8 1/8 0 |
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O5 5/8 7/8 0 |
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O6 1/8 7/8 0 |
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O7 5/8 1/8 2/24 |
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O8 3/8 3/8 2/24 |
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O9 3/8 7/8 2/24 |
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O10 7/8 3/8 2/24 |
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O11 7/8 7/8 2/24 |
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O12 1/8 5/8 2/24 |
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| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure
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Domeykite |
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Iglesias J E, Nowacki W |
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Zeitschrift fur Kristallographie 145 (1977) 334-345 |
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Refinement of the crystal structure of alpha domeykite, |
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a structure related to the A15 type |
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Locality: Mohawk No. 2 mine, Keweenaw County, Michigan, USA |
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_database_code_amcsd 0010794 |
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9.619 9.619 9.619 90 90 90 I-43d |
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atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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Cu -.0293 .1202 .1876 .0029 .0023 .0044 -.0001 .0009 .0001 |
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As -.02980 -.02980 -.02980 .00190 .00190 .00190 -.00009 -.00009 -.00009 |
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| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure
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