title: Raman Investigation of Precious Jewelry Collections Preserved in Paolo Orsi Regional Museum (Siracusa, Sicily) Using Portable Equipment.
abstract: This work is a part of a large scientific project aimed at highlighting the potential of portable Raman equipment in characterizing jewelry materials preserved in museums, carried out in collaboration with gemologists and archeologists. In detail, we report the results of a measurement campaign performed for the study of gems and jewels preserved in the well-known Medagliere section at the Paolo Orsi Regional Museum of Siracusa (Sicily). The studied materials consist of exquisite examples of engraved loose gems and really rare examples of Hellenistic-Roman jewels, mainly coming from relevant Sicilian archaeological sites. Portable Raman measurements have been carried out using two instruments equipped with different excitation wavelengths. The obtained results have allowed for a complete characterization of the studied gemological materials, also suggesting sometimes misclassification for some valuable objects and gems.
authors: Department of Biological, Geological and Environmental Sciences, University of Catania, Catania, Italy gbarone@unict.it.
authors: Germana
authors: G
authors: Barone
authors: Department of Biological, Geological and Environmental Sciences, University of Catania, Catania, Italy.
authors: Paolo
authors: P
authors: Mazzoleni
authors: Department of Biological, Geological and Environmental Sciences, University of Catania, Catania, Italy.
authors: Simona
authors: S
authors: Raneri
authors: Institute of Geochemistry, Mineralogy and Mineral Resources, Charles University in Prague, Prague, Czech Republic.
authors: Jan
authors: J
authors: Jehlička
authors: Department of Archaeology, Ghent University, Gent, Belgium.
authors: Peter
authors: P
authors: Vandenabeele
authors: Department of Physics and Earth Sciences, University of Parma, Parma, Italy.
authors: Pier Paolo
authors: PP
authors: Lottici
authors: Regional Museum Paolo Orsi, Siracusa, Italy.
authors: Gioconda
authors: G
authors: Lamagna
authors: Regional Museum Paolo Orsi, Siracusa, Italy.
authors: Angela Maria
authors: AM
authors: Manenti
authors: Department of Physics and Earth Sciences, University of Parma, Parma, Italy.
authors: Danilo
authors: D
authors: Bersani
keywords: Gems; Medagliere; Siracusa; jewels; museum collection; portable Raman spectrometry