<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">Natural samples of fluorite and apatite from granites, pegmatites, carbonatites and andesitic tuffs were investigated by steady-time spectroscopy to characterize the luminescence properties of Ce3+ and Eu2+. The luminescence of Ce3+ has been clearly seen in fluorite as 320 and 337 or 343 nm bands. In apatites, two distinct bands for two different Ca crystal sites were obtained: 340-380 nm for Ca(1) and 420-450 nm for Ca(2). The luminescence spectra of Eu2+ in the fluorite crystals were measured even at for low concentration of this element (0.11 ppm). For Ce3+, it has been showed that the crystal field strength depends more on the nature of the ligand than on the Me-ligand distances.</abstract>

Natural samples of fluorite and apatite from granites, pegmatites, carbonatites and andesitic tuffs were investigated by steady-time spectroscopy to characterize the luminescence properties of Ce3+ and Eu2+. The luminescence of Ce3+ has been clearly seen in fluorite as 320 and 337 or 343 nm bands. In apatites, two distinct bands for two different Ca crystal sites were obtained: 340-380 nm for Ca(1) and 420-450 nm for Ca(2). The luminescence spectra of Eu2+ in the fluorite crystals were measured even at for low concentration of this element (0.11 ppm). For Ce3+, it has been showed that the crystal field strength depends more on the nature of the ligand than on the Me-ligand distances.

Luminescence properties of Ce3+ and Eu2+ in fluorites and apatites

Faculty of Earth Sciences, University of Silesia, 41-200 Sosnowiec, Będzińska 60, Poland

Mineralogia

Luminescence properties of Ce and Eu in fluorites and apatites

Natural samples of fluorite and apatite from granites, pegmatites, carbonatites and andesitic tuffs were investigated by steady-time spectroscopy to...

Luminescence properties of Ce³⁺ and Eu²⁺ in fluorites and apatites

Pubblicato online: 04 mag 2010

Pagine: 85 - 94

DOI: https://doi.org/10.2478/v10002-009-0007-y

Parole chiave
fluorite, apatite, REE, luminescence

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