Caput mortuum: spectroscopic and structural studies of an ancient pigment
de Oliveira, Luiz, Edwards, Howell, Frost, Ray L., Kloprogge, J. Theo, & Middleton, Paul (2002) Caput mortuum: spectroscopic and structural studies of an ancient pigment. The Analyst, 127(4), pp. 536-541.
The use of a pigment variously described as caput mortuum, usta or ostrum to provide a deep purple colour in ancient wall-paintings was highly prized, despite the technical difficulties associated with its application. With the Raman spectroscopic characterization of pigments in ancient frescoes and wall-paintings becoming more widespread, it is timely to consider the identification of this material either as a generic haematite alone or in admixture with contemporary blue pigments. Here, Raman and infrared spectroscopic, X-ray diffractometric and scanning electron microscopic structural studies have been undertaken to characterize caput mortuum and to identify a specimen of Roman wall-painting dating from the 3rd century.
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|Item Type:||Journal Article|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > ANALYTICAL CHEMISTRY (030100)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
|Copyright Owner:||Copyright 2002 Royal Society of Chemistry|
|Deposited On:||17 Jun 2009 23:27|
|Last Modified:||11 Aug 2011 04:42|
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