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Trace elements content and cause of color in ancient treated carnelian and its natural counterpart from SE Asia

Trace elements content and cause of color in ancient treated carnelian and its natural... Iron Age treated carnelian beads and their natural counterparts from SE Asia have been discussed in terms of attribution of transition and lighter elements in their matrix. They were investigated by using synchrotron techniques (XRF: X-ray fluorescence, XANES: X-ray absorption near edge structure, and XPS: X-ray photoelectron spectroscopy) and SEM-EDS: scanning electron microscope-energy dispersive spectroscopy. Ferrihydrite or ferrihydrite + goethite have been found as the causes of color. The treated stones were subjected to the sugar + sulfuric acid treatment of about 1800-year BP. This work has fulfilled information about the treatment in the ancient chalcedony to the archeomineralogy archive. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archaeological and Anthropological Sciences Springer Journals

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References (46)

Publisher
Springer Journals
Copyright
Copyright © 2020 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Earth Sciences; Earth Sciences, general; Archaeology; Chemistry/Food Science, general; Geography, general; Life Sciences, general; Anthropology
ISSN
1866-9557
eISSN
1866-9565
DOI
10.1007/s12520-019-00953-x
Publisher site
See Article on Publisher Site

Abstract

Iron Age treated carnelian beads and their natural counterparts from SE Asia have been discussed in terms of attribution of transition and lighter elements in their matrix. They were investigated by using synchrotron techniques (XRF: X-ray fluorescence, XANES: X-ray absorption near edge structure, and XPS: X-ray photoelectron spectroscopy) and SEM-EDS: scanning electron microscope-energy dispersive spectroscopy. Ferrihydrite or ferrihydrite + goethite have been found as the causes of color. The treated stones were subjected to the sugar + sulfuric acid treatment of about 1800-year BP. This work has fulfilled information about the treatment in the ancient chalcedony to the archeomineralogy archive.

Journal

Archaeological and Anthropological SciencesSpringer Journals

Published: Jan 2, 2020

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