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Pigments used in Roman wall paintings in the Vesuvian area
Author(s) -
Aliatis Irene,
Bersani Danilo,
Campani Elisa,
Casoli Antonella,
Lottici Pier Paolo,
Mantovan Silvia,
Marino IariGabriel
Publication year - 2010
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.2701
Subject(s) - pigment , goethite , mineralogy , malachite , quartz , hematite , chemistry , raman spectroscopy , tridymite , cristobalite , materials science , nuclear chemistry , metallurgy , adsorption , optics , physics , organic chemistry , copper
Powdered pigments found in bowls from the Pompeii archaeological site and some wall‐painting fragments from the Vesuvian area (conserved in the National Archaeological Museum of Naples) were investigated by microscopic Raman and FTIR spectroscopies, X‐ray diffraction and scanning electron microscopy‐energy dispersive X‐ray. Brown, red and yellow pigments are common ochres based on goethite and haematite. The blue pigment is Egyptian blue: the presence of tridymite and cristobalite indicates firing temperatures in the 1000–1100 °C range. Pink pigments were prepared both with purely inorganic materials, by mixing haematite and Egyptian blue (violet hue), or presumably by adding an organic dye to an aluminium‐silica matrix. A white powder found in a bowl is composed mainly of the unusual pigment huntite (CaMg 3 (CO 3 ) 4 ). Celadonite is found in the green samples from the wall paintings, together with Egyptian blue and basic lead carbonate, while the heterogeneous green pigment in a bowl shows malachite mixed with goethite, Egyptian blue, haematite, carbon, cerussite and quartz. Copyright © 2010 John Wiley & Sons, Ltd.