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Raman spectroscopic study of the uranyl titanate mineral holfertite CaxU2-xTi(O8-xOH4x)•3H2O and the lack of metamictization\ud

By Ray L. Frost


Raman spectra of the uranyl titanate mineral holfertite CaxU2-xTi(O8-xOH4x)•3H2O were analysed and related to the mineral structure. Observed bands are attributed to the TiO and (UO2)2+ stretching and bending vibrations, U-OH bending vibrations, H2O stretching, bending. The mineral holfertite is metamict as is evidenced by order/disorder of the mineral. Unexpectedly the Raman spectrum of holfertite does not show any metamictization. The intensity of the UO stretching and bending modes show normal intensity and the bands are sharp

Topics: 030606 Structural Chemistry and Spectroscopy, holfertite, uranyl, titanium, mineral, betafite, Raman spectroscopy, U-O bond length
Publisher: Taylor & Francis
Year: 2011
DOI identifier: 10.1080/10420150.2010.525236
OAI identifier:

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