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Nuclear magnetic resonance of Al-27 in topaz, Al2SiO4/F, OH/2.The Al-27 nuclear quadrupolar coupling constant and asymmetry parameter (eta) in topaz have been determined to be 1.67 (plus or minus 0.03) MHz and 0.38 plus or minus 0.05, respectively. These values and the orientations of the principal axes are consistent with the Fe(3+) paramagnetic resonance data and with the symmetry of the AlO4F2 octahedron.
Document ID
19720031972
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1063/1.1676856
Authors
Tsang, T. (NASA Goddard Space Flight Center Planetology Branch, Greenbelt, Md., United States)
Ghose, S. (Howard University Washington, D.C., United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1972
Publication Information
Publication: Journal of Chemical Physics
Volume: 56
Subject Category
Physics, Solid-State
Accession Number
72A15638
Distribution Limits
Public
Copyright
Other

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