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Raman spectroscopic study of the uranyl titanate mineral euxenite (Y,Ca,U,Ce,Th) (Nb,Ta,Ti) 2 O 6
Author(s) -
Frost Ray L.,
Palmer Sara J.,
Reddy B. Jagannadha
Publication year - 2011
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.2822
Subject(s) - uranyl , raman spectroscopy , metamictization , chemistry , mineral , titanate , analytical chemistry (journal) , ion , mineralogy , inorganic chemistry , crystallography , ceramic , geology , optics , physics , organic chemistry , chromatography , zircon , paleontology
Abstract Raman spectra of the uranyl titanate mineral euxenite were analysed and related to the mineral structure. A comparison is made with the Raman spectra of uranyl oxyhydroxide hydrates. The observed bands are attributed to the TiO and (UO 2 ) 2+ stretching and bending vibrations, as well as lattice vibrations of rare‐earth ions. The Raman bands of euxenite are in harmony with those of the uranyl oxyhydroxides. The mineral euxenite is metamict as is evidenced by the intensity of the UO stretching and bending modes, which are of lower intensity than expected, and with bands that are significantly broader. Copyright © 2010 John Wiley & Sons, Ltd.