Multi-technique characterization of colored gem tourmalines |
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| Roberta Somma, Giuseppe Paladini, Sebastiano Ettore Spoto, Francesco Caridi, Vincenza Crupi, Monica Interdonato, Valentina Venuti |
- Abstract:
- A preliminary investigation was carried out on two different colored tourmalines (TMs), sourced by the Mineral and Gem collection of the Messina University (Messina, Italy). The employment of μ- Raman spectroscopy allowed to unambiguously recognize the mineral sub-group these species belong to, starting from the molecular composition. Through X-ray fluorescence spectroscopy (XRF), the elemental composition of the studied gemstones was achieved, identifying the chromophores responsible for the observed colorations. The obtained results allowed to define the mineral “fingerprinting” and get insights into the crystallization history of the TM host rock and the criteria according to which TMs exhibit a particular color.
- Download:
- IMEKO-TC4-MetroArchaeo2022-025.pdf
- DOI:
- 10.21014/tc4-ARC-2022.025
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 MetroArchaeo 2022
- Title:
IMEKO TC4 International Conference on Metrology for Archaeology and Cultural Heritage
- Place:
- Consenca, ITALY
- Time:
- 19 September 2022 - 21 September 2022