X-ray Fluorescence and Laser-Induced Breakdown Spectroscopy Analysis of Li-Rich Minerals in Veins from Argemela Tin Mine, Central Portugal

In this work, X-ray fluorescence (XRF) and Laser-induced breakdown spectroscopy (LIBS) analyses were applied to samples of quartz, montebrasite, and turquoise hydrothermal veins in the Argemela Tin Mine (Central Portugal). Montebrasite (LiAl(PO<sub>4</sub>)(OH,F)) is potentially the main...

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Autores principales:	Ricardo Ribeiro, Diana Capela, Miguel Ferreira, Rui Martins, Pedro Jorge, Diana Guimarães, Alexandre Lima
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	turquoise montebrasite lithium LIBS XRF thin section Mineralogy QE351-399.2
Acceso en línea:	https://doaj.org/article/d99a4635f0e94a5c844722534a214abd
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spelling	oai:doaj.org-article:d99a4635f0e94a5c844722534a214abd2021-11-25T18:25:56ZX-ray Fluorescence and Laser-Induced Breakdown Spectroscopy Analysis of Li-Rich Minerals in Veins from Argemela Tin Mine, Central Portugal10.3390/min111111692075-163Xhttps://doaj.org/article/d99a4635f0e94a5c844722534a214abd2021-10-01T00:00:00Zhttps://www.mdpi.com/2075-163X/11/11/1169https://doaj.org/toc/2075-163XIn this work, X-ray fluorescence (XRF) and Laser-induced breakdown spectroscopy (LIBS) analyses were applied to samples of quartz, montebrasite, and turquoise hydrothermal veins in the Argemela Tin Mine (Central Portugal). Montebrasite (LiAl(PO<sub>4</sub>)(OH,F)) is potentially the main ore mineral; with its alteration, lithium (Li) can disseminate into other minerals. A hand sample was cut and analyzed by XRF and LIBS for several elements of interest including Cu, P, Al, Si, and Li. Although XRF cannot measure Li, results from its analysis are effective for distinguishing turquoise from montebrasite. LIBS analysis complemented this study, making it possible to conclude that turquoise does not contain any significant Li in its structure. The difference in spot size between the techniques (5 mm vs. 300 µm for XRF and LIBS, respectively) resulted in a poorer performance by XRF in accurately identifying mixed minerals. A thin section was petrographically characterized and mapped using LIBS. The mapping results demonstrate the possibility of the successful identification of minerals and their alterations on a thin section. The results of XRF analysis and LIBS mapping in petrographic sections demonstrate the efficacy of these methods as tools for element and mineral identification, which can be important in exploration and mining phases, complementing more traditional techniques.Ricardo RibeiroDiana CapelaMiguel FerreiraRui MartinsPedro JorgeDiana GuimarãesAlexandre LimaMDPI AGarticleturquoisemontebrasitelithiumLIBSXRFthin sectionMineralogyQE351-399.2ENMinerals, Vol 11, Iss 1169, p 1169 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	turquoise montebrasite lithium LIBS XRF thin section Mineralogy QE351-399.2
spellingShingle	turquoise montebrasite lithium LIBS XRF thin section Mineralogy QE351-399.2 Ricardo Ribeiro Diana Capela Miguel Ferreira Rui Martins Pedro Jorge Diana Guimarães Alexandre Lima X-ray Fluorescence and Laser-Induced Breakdown Spectroscopy Analysis of Li-Rich Minerals in Veins from Argemela Tin Mine, Central Portugal
description	In this work, X-ray fluorescence (XRF) and Laser-induced breakdown spectroscopy (LIBS) analyses were applied to samples of quartz, montebrasite, and turquoise hydrothermal veins in the Argemela Tin Mine (Central Portugal). Montebrasite (LiAl(PO<sub>4</sub>)(OH,F)) is potentially the main ore mineral; with its alteration, lithium (Li) can disseminate into other minerals. A hand sample was cut and analyzed by XRF and LIBS for several elements of interest including Cu, P, Al, Si, and Li. Although XRF cannot measure Li, results from its analysis are effective for distinguishing turquoise from montebrasite. LIBS analysis complemented this study, making it possible to conclude that turquoise does not contain any significant Li in its structure. The difference in spot size between the techniques (5 mm vs. 300 µm for XRF and LIBS, respectively) resulted in a poorer performance by XRF in accurately identifying mixed minerals. A thin section was petrographically characterized and mapped using LIBS. The mapping results demonstrate the possibility of the successful identification of minerals and their alterations on a thin section. The results of XRF analysis and LIBS mapping in petrographic sections demonstrate the efficacy of these methods as tools for element and mineral identification, which can be important in exploration and mining phases, complementing more traditional techniques.
format	article
author	Ricardo Ribeiro Diana Capela Miguel Ferreira Rui Martins Pedro Jorge Diana Guimarães Alexandre Lima
author_facet	Ricardo Ribeiro Diana Capela Miguel Ferreira Rui Martins Pedro Jorge Diana Guimarães Alexandre Lima
author_sort	Ricardo Ribeiro
title	X-ray Fluorescence and Laser-Induced Breakdown Spectroscopy Analysis of Li-Rich Minerals in Veins from Argemela Tin Mine, Central Portugal
title_short	X-ray Fluorescence and Laser-Induced Breakdown Spectroscopy Analysis of Li-Rich Minerals in Veins from Argemela Tin Mine, Central Portugal
title_full	X-ray Fluorescence and Laser-Induced Breakdown Spectroscopy Analysis of Li-Rich Minerals in Veins from Argemela Tin Mine, Central Portugal
title_fullStr	X-ray Fluorescence and Laser-Induced Breakdown Spectroscopy Analysis of Li-Rich Minerals in Veins from Argemela Tin Mine, Central Portugal
title_full_unstemmed	X-ray Fluorescence and Laser-Induced Breakdown Spectroscopy Analysis of Li-Rich Minerals in Veins from Argemela Tin Mine, Central Portugal
title_sort	x-ray fluorescence and laser-induced breakdown spectroscopy analysis of li-rich minerals in veins from argemela tin mine, central portugal
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/d99a4635f0e94a5c844722534a214abd
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X-ray Fluorescence and Laser-Induced Breakdown Spectroscopy Analysis of Li-Rich Minerals in Veins from Argemela Tin Mine, Central Portugal

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