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Polarization effects in the infrared spectra of α-quartz and α-cristobalite

AuthorsOcaña, Manuel ; Fornés, Vicente; García-Ramos, José Vicente ; Serna Pereda, Carlos J.
Issue Date1987
CitationPhysics and Chemistry of Minerals 14: 527-532 (1987)
AbstractThe effect of anisotropy and particle shape has been analysed in the infrared powder spectra of α-quartz and α-cristobalite by using the Theory of the Average Dielectric Constant. Information is obtained regarding the applicability of the theory to these compounds of low polarizability as well as on the contribution of each atom to the vibrational modes. It is shown that the strong tendency of these oxides to adopt a platelike morphology is the reason for the small variability observed in their infrared powder spectra. © 1987 Springer-Verlag.
Identifiersdoi: 10.1007/BF00308288
issn: 0342-1791
Appears in Collections:(ICMM) Artículos
(CFMAC-IO) Artículos
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