Informace o publikaci
On the presence of OH defects in the zircon-type phosphate mineral xenotime, (Y,REE)PO4
| Autoři | |
|---|---|
| Rok publikování | 2011 |
| Druh | Článek v odborném periodiku |
| Časopis / Zdroj | American Mineralogist |
| Fakulta / Pracoviště MU | |
| Citace | |
| Obor | Geologie a mineralogie |
| Klíčová slova | xenotime |
| Popis | The infrared (IR) spectra of gem-quality xenotime crystals containing considerable amounts of rare earth elements (REEs), are characterized by sharp and strongly pleochroic absorption bands in the 3650-3350 cm-1 region. Xenotime presents the interesting case of a nominally anhydrous mineral, where the OH stretching frequency region of weakly hydrogen-bonded OH groups is overlapped by absorption bands of REEs, especially of dysprosium. The spectra of partially metamict samples are dominated by a broad band centered at around 3450 cm-1. The water content of the unmetamict samples ranges from 5 to 10 wt ppm and for the partially metamict samples from 370 wt ppm to 1.7 wt% H2O. |
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