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Investigation of Neolithic ceramic pigments using synchrotron radiation X-ray diffraction

Published online by Cambridge University Press:  29 February 2012

Roxana Bugoi
Affiliation:
“Horia Hulubei” National Institute of Nuclear Physics and Engineering, 077125 Bucharest, Romania
Bogdan Constantinescu
Affiliation:
“Horia Hulubei” National Institute of Nuclear Physics and Engineering, 077125 Bucharest, Romania
Emmanuel Pantos
Affiliation:
CCLRC, Daresbury Laboratory, Warrington WA4 4AD, United Kingdom
Dragomir Popovici
Affiliation:
National Museum of Romanian History, Bucharest, Romania

Abstract

Crystalline phases present in pigments scratched off the surfaces of some decorated ceramic sherds belonging to the Cucuteni Neolithic culture were successfully identified using synchrotron radiation X-ray diffraction at Daresbury Laboratory. The ceramic sherds were selected from a collection of the National Museum of Romanian History in Bucharest. The synchrotron radiation X-ray diffraction analysis revealed that the black-color pigments on the surface of a number of sherds were produced by a variety of jacobsite (Fe2MnO4) phases; magnetite (Fe3O4) was also found in one of the sherds. The red color was derived from clay slips with a high content of hematite (Fe2O3). Calcite (CaCO3) was found in the white pigments; its presence was explained as being related to postburial deposition processes. Conclusions on technological aspects, provenance, and conservation issues are given.

Type
TECHNICAL ARTICLES
Copyright
Copyright © Cambridge University Press 2008

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