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Shedding New Light on Ancient Glass Beads by Synchrotron, SEM-EDS, and Raman Spectroscopy Techniques.

ABSTRACT: The oxidation states of colouring elements and the pigments in ancient rare glasses have been investigated in this study. Synchrotron X-ray, SEM-EDS, and Raman techniques revealed that Cu²⁺plays a major role in blue and green glasses. The lead stannate pigment gives glasses a yellow colour. Copper and lead stannate can cause the green colour in glasses, and iron gives rise to the colour of black glasses. Microcomputed tomography reveals the distribution of the heavy elements, pigments, and inclusions in the glasses. The Dvaravati glasses in Southeast Asia may have been imported or technologically transferred to domestic manufacturers during trading on the Silk Road that connected the East and the West.

SUBMITTER: Saminpanya S

PROVIDER: S-EPMC6831571 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Shedding New Light on Ancient Glass Beads by Synchrotron, SEM-EDS, and Raman Spectroscopy Techniques.

Saminpanya Seriwat S Saiyasombat Chatree C Thammajak Nirawat N Samrong Chanakarn C Footrakul Sirilak S Potisuppaiboon Nichanan N Sirisurawong Ekkasit E Witchanantakul Thumrongsak T Rojviriya Catleya C

Scientific reports 20191105 1

The oxidation states of colouring elements and the pigments in ancient rare glasses have been investigated in this study. Synchrotron X-ray, SEM-EDS, and Raman techniques revealed that Cu<sup>2+</sup>plays a major role in blue and green glasses. The lead stannate pigment gives glasses a yellow colour. Copper and lead stannate can cause the green colour in glasses, and iron gives rise to the colour of black glasses. Microcomputed tomography reveals the distribution of the heavy elements, pigments ...[more]

PMID: 31690739

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