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Archaeometric study of black-coated pottery from Pompeii by different analytical techniques
Roberta Scarpelli1, Robin J H Clark2, Anna Maria De Francesco3
1Christopher Ingold Laboratories, University College London, 20 Gordon Street, London WC1H OAJ, UK; Department of Biology, Ecology and Earth Science, University of Calabria, via Pietro Bucci, 87036 Arcavacata di Rende, CS, Italy.
Abstract:
Complementary spectroscopic methods were used to characterize ceramic body and black coating of fine pottery found at Pompeii (Italy). This has enabled us to investigate local productions and to clarify the technological changes over the 4th-1st centuries BC. Two different groups of ceramics were originally distinguished on the basis of macroscopic observations. Optical microscopy (OM), X-ray diffraction (XRD) and X-ray fluorescence (XRF) seem to indicate the usage of the same raw materials for the production of black-coated ceramics at Pompeii for about three centuries. Raman microscopy (RM) and micro-analysis (SEM/EDS) suggest different production treatments for both raw material processing and firing practice (duration of the reducing step and the cooling rate).
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