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More than 300 natural and synthetic emeralds from various sources were examined with confocal Raman spectroscopy. This method identifies different water types in the beryl channel sites, making it possible to determine whether an emerald is natural or synthetic. In addition, this approach can provide information regarding geographic origin or synthesis technique (flux or hydrothermal). © 2010 Gemological Institute of America. Year: 2010 Source title: Gems and Gemology Volume: 46 Issue: 1 Page : 36-41 Link: Scorpus Link Correspondence Address: Huong, L. T.-T.; Faculty of Geology, Hanoi University of ScienceViet Nam; email: letth@vnu.edu.vn ISSN: 0016626X Language of Original Document: English Abbreviated Source Title: Gems and Gemology Document Type: Article Source: Scopus Authors with affiliations: Huong, L.T.-T., Faculty of Geology, Hanoi University of Science, Viet Nam Hager, T., Faculty of Chemistry, Pharmacy and Geosciences, Centre for Gemstone Research, Johannes Gutenberg University, Mainz, Germany, Institute of Gemstone Research, Idar-Oberstein, Germany, Gemstone and Jewellery Design Department, University for Applied Sciences, Idar-Oberstein, Germany Hofmeister, W., Faculty of Chemistry, Pharmacy and Geosciences, Centre for Gemstone Research, Johannes Gutenberg University, Mainz, Germany, Institute of Gemstone Research, Idar-Oberstein, Germany References: Aines, R.D., Rossman, G.R., The high temperature behavior of water and carbon dioxide in cordierite and beryl (1984) American Mineralogist, 60, pp. 319-327 Aurisicchio, C., Grubessi, O., Zecchini, P., Infrared spectroscopy and crystal chemistry of the beryl group (1994) Canadian Mineralogist, 32, pp. 55-68

Confocal Micro-Raman Spectroscopy: A Powerful Tool to Identify Natural And Synthetic Emeralds