copper-based green
Egypt
14th Century
Source: Porter, Cheryl. "The Science of Color: Color Analysis and the Roles of Economics, Geography, and Tradition in the Artist’s Choice of Colors for Manuscript Painting." In: And Diverse Are Their Hues: Color in Islamic Art and Culture (Eds. Sheila Blair and Jonathan Bloom), Yale University Press, 2011.
Recipe Details
Ingredients
copper salts
Preparation Steps
Often shorthand-designated as 'verdigris', though analysis shows a mixture of basic copper chlorides (p. 11).
Original Recipe Text
Often shorthand-designated as 'verdigris', though analysis shows a mixture of basic copper chlorides (p. 11).
Evidence
"Using Raman spectroscopy, the green used in the decoration of the khamsa in Rasid 9 was identified as a copper-based green... Spectra, however, indicated the presence of a mixture of paratacamite and atacamite (basic copper chlorides), both common alteration products from copper salts, and the exact nature of the original copper pigment employed is not clear."
Remarks
Identified as a mixture of paratacamite and atacamite (p. 11).
Scientific Analysis
Chemical CompositionCu2(OH)3Cl
Analytical Techniques
Raman
Certainty Level
Confirmed
Instrumentally Verified
Verified
Metadata
Material Type
pigment
ColorGreen
RegionEgypt
Approx. Year1350
Source Information
AuthorPorter, Cheryl. "The Science of Color: Color Analysis and the Roles of Economics, Geography, and Tradition in the Artist’s Choice of Colors for Manuscript Painting." In: And Diverse Are Their Hues: Color in Islamic Art and Culture
CollectionCairo
Language
N/A
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