Multi-technique characterization of colored gem tourmalines

Somma, Roberta; Paladini, Giuseppe; Spoto, Sebastiano Ettore; Caridi, F.; Crupi, V.; Interdonato, Monica; Venuti, Valentina

doi:10.21014/tc4-arc-2022.025

Cited by 1 publication

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References 3 publications

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“…Two hundred and nine are the specimens of the "Mineral and gem didactic collection". The most significant samples consist of sapphire, topaz, emerald, beryl, tourmaline (Figure 13 to Figure 15) [21], garnet, corundum, opal, amber (Figure 16) [21], and quartz (agate and chalcedony) whose provenance derives from all over the world. The oldest specimens date back to the 30s, whereas the most recent samples date to the 80s of the last century.…”

Section: The Mineral and Gem Didactic Collectionmentioning

confidence: 99%

The geological heritage of the historical collections of the University of Messina

Somma,

Interdonato,

Marra

et al. 2023

Acta IMEKO

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The geoheritage housed in the historical collections of the University of Messina dates back to the 1880s. These historical collections comprise a thousand specimens of minerals, gemstones, ores, rocks, and macro- to microfossils. Most of them are provided of scientific, didactic, and cultural values and consequently have to be preserved and enhanced for future generations. Their restoration and cataloging are necessary activities to make this geoscientific naturalist heritage accessible to scientists, students, tourists, and citizens worldwide. The present research reports the description of the geological heritage of the main collections housed at the University of Messina, and the results of the activities and methods carried out for the characterization of geological materials of uncertain classification or composition. The optical observations at the stereomicroscope and by Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS), in tandem with µ-Raman analyses on geomaterials allowed to ascertain the authenticity of suspect specimens, pointing out that such methodologies provide a useful and fast approach to properly discriminate between real and fake geomaterials.

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Section: The Mineral and Gem Didactic Collectionmentioning

confidence: 99%