This work reports the results of an archaeometrical investigation of opaque Roman glass and is mainly focussed on the role of configuration and oxidation state of copper on the colour and opacity of red and green opaque finds (mosaic tesserae, game counters, and glass artefacts) from Sicily and Pompeii excavations. The glass fragments were characterisedby EMPA, SEM-EDS, TEM, and XRPD analyses and the copper local environment was investigated using X-ray absorption spectroscopy. The analyses of high-resolution Cu-K edge XANES and EXAFS spectra suggest that, in red samples, copper is present as monovalent cations coordinated to the oxygen atoms of the glass framework, accompanied by metallic clusters. In green samples all the copper cations are incorporated in the glass matrix.

Roman coloured and opaque glass: a chemical and spectroscopic study / Arletti, R.; Dalconi, M. C.; Quartieri, S.; Triscari, M; Vezzalini, Maria Giovanna. - In: APPLIED PHYSICS. A, MATERIALS SCIENCE & PROCESSING. - ISSN 0947-8396. - STAMPA. - A83:(2006), pp. 239-245.

Roman coloured and opaque glass: a chemical and spectroscopic study

ARLETTI R.;VEZZALINI, Maria Giovanna
2006

Abstract

This work reports the results of an archaeometrical investigation of opaque Roman glass and is mainly focussed on the role of configuration and oxidation state of copper on the colour and opacity of red and green opaque finds (mosaic tesserae, game counters, and glass artefacts) from Sicily and Pompeii excavations. The glass fragments were characterisedby EMPA, SEM-EDS, TEM, and XRPD analyses and the copper local environment was investigated using X-ray absorption spectroscopy. The analyses of high-resolution Cu-K edge XANES and EXAFS spectra suggest that, in red samples, copper is present as monovalent cations coordinated to the oxygen atoms of the glass framework, accompanied by metallic clusters. In green samples all the copper cations are incorporated in the glass matrix.
A83
239
245
Roman coloured and opaque glass: a chemical and spectroscopic study / Arletti, R.; Dalconi, M. C.; Quartieri, S.; Triscari, M; Vezzalini, Maria Giovanna. - In: APPLIED PHYSICS. A, MATERIALS SCIENCE & PROCESSING. - ISSN 0947-8396. - STAMPA. - A83:(2006), pp. 239-245.
Arletti, R.; Dalconi, M. C.; Quartieri, S.; Triscari, M; Vezzalini, Maria Giovanna
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/460538
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