This work is concerned with a multi-analytical identification of the colour palette utilised in the decoration of the cover of an Egyptian sarcophagus dated to the Late Dynastic Period and belonging to a private collection. In this study, six different points were analysed with a portable Raman spectrometer; then, in these same points, six micro-fragments were taken from the sarcoph-agus for laboratory analysis performed by scanning electron microscopy coupled with energy dis-persive X-ray spectroscopy (SEM-EDXS), attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) and visible induced luminescence imaging (VIL). Raman spectra collected in situ showed the characteristic bands of calcite, red ochre and black carbon. SEM-EDXS analyses highlighted the presence of a copper-based pigment in the light blue, blue and black fragments; then, the ATR-FTIR spectrum of the light blue sample only displayed the peculiar bands of Egyptian blue. The latter result was confirmed by VIL analysis, which successfully identified the same pig-ment in blue-black fragments as well, leading to the possible authentication of the finding. Moreo-ver, the presence of calcite, red ochre, green earth and some organic material was assessed by FTIR spectroscopy, confirming some of the results of in situ Raman analyses. Regarding organic materi-als, whose investigation is still ongoing, some hypotheses were made on the basis of their FTIR spectra.

A Multi-Analytical Approach for the Characterisation of Pigments from an Egyptian Sarcophagus Cover of the Late Dynastic Period: A Case Study / C.A. Lombardi, V. Comite, P. Fermo, A. Bergomi, L. Trombino, V. Guglielmi. - In: SUSTAINABILITY. - ISSN 2071-1050. - 15:3(2023 Jan 20), pp. 2002.1-2002.17. [10.3390/su15032002]

A Multi-Analytical Approach for the Characterisation of Pigments from an Egyptian Sarcophagus Cover of the Late Dynastic Period: A Case Study

C.A. Lombardi
Primo
Writing – Original Draft Preparation
;
V. Comite
Secondo
Formal Analysis
;
P. Fermo
Supervision
;
A. Bergomi
Data Curation
;
L. Trombino
Penultimo
Methodology
;
V. Guglielmi
Ultimo
Writing – Review & Editing
2023

Abstract

This work is concerned with a multi-analytical identification of the colour palette utilised in the decoration of the cover of an Egyptian sarcophagus dated to the Late Dynastic Period and belonging to a private collection. In this study, six different points were analysed with a portable Raman spectrometer; then, in these same points, six micro-fragments were taken from the sarcoph-agus for laboratory analysis performed by scanning electron microscopy coupled with energy dis-persive X-ray spectroscopy (SEM-EDXS), attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR) and visible induced luminescence imaging (VIL). Raman spectra collected in situ showed the characteristic bands of calcite, red ochre and black carbon. SEM-EDXS analyses highlighted the presence of a copper-based pigment in the light blue, blue and black fragments; then, the ATR-FTIR spectrum of the light blue sample only displayed the peculiar bands of Egyptian blue. The latter result was confirmed by VIL analysis, which successfully identified the same pig-ment in blue-black fragments as well, leading to the possible authentication of the finding. Moreo-ver, the presence of calcite, red ochre, green earth and some organic material was assessed by FTIR spectroscopy, confirming some of the results of in situ Raman analyses. Regarding organic materi-als, whose investigation is still ongoing, some hypotheses were made on the basis of their FTIR spectra.
Egyptian coffin; pigments; Raman spectroscopy; SEM-EDXS; ATR-FTIR; VIL
Settore CHIM/01 - Chimica Analitica
20-gen-2023
https://www.mdpi.com/2071-1050/15/3/2002
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/956525
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