title: Micro-Raman spectra of ugrandite garnet.
abstract: The natural garnets from chromite ores associated with pegmatoid pyroxenites of Sangalyk area (Uchaly ore district, southern Urals, Russia) were studied by means of micro-Raman spectroscopy. The compositions of these garnets were close to ugrandite, an isomorphous intermediate group of uvarovite-grossularite-andradite, X(3)Y(2)(SiO(4))(3), X = Ca(2+), Y = Al(3+), Fe(3+), Cr(3+), according to Raman spectra and X-ray microprobe analyses. An assignment of most of the observed bands in visible and near infrared Raman spectra is reported.
authors.affiliation: Institute of geology and mineralogy, Siberian Branch of Russian Academy of Science, Pr. Akad. Koptyuga, 3, 630090 Novosibirs, Russia. moroz@uiggm.nsc.ru
authors.forename: T
authors.initials: T
authors.lastname: Moroz
authors.forename: A
authors.initials: A
authors.lastname: Ragozin
authors.forename: D
authors.initials: D
authors.lastname: Salikhov
authors.forename: G
authors.initials: G
authors.lastname: Belikova
authors.forename: V
authors.initials: V
authors.lastname: Puchkov
authors.forename: H
authors.initials: H
authors.lastname: Kagi
mesh_terms: D019015:Geologic Sediments / Q000737:chemistry*; D008903:Minerals / Q000032:analysis* / Q000737:chemistry; D013059:Spectrum Analysis, Raman
chemical_list: D008903:Minerals