| Author(s) |
John M. Bussey, Ed Vicenzi, M. C. Dixon Wilkins, Julia Esakoff, Thomas Lam, Travis Olds, Lisa Haney, Mostafa Sherif, Sam Karcher, John McCloy |
| Abstract Scope |
Egyptian blue (EB) is humankind’s oldest inorganic pigment. Egyptian blue is rarely homogenous, with varied crystalline phases – cuprorivaite, silica (quartz, tridymite, cristobalite), wollastonite, and tenorite – and residual glass phases. In this poster, phase assemblages from both synthetic EB materials and ancient artifacts are discussed using X-ray diffraction, X-ray nano-Computed Tomography, and electron probe microanalysis. Further, synthesis of individual phases identified with these methods is described. Using these individual phases and the synthetic EB materials, relationships between phase assemblages and color are identified. Materials considerations are also specifically discussed, including Cu doping in wollastonite and glass formation in high Cu containing silicates. This poster additional serves as a preview for "The Egyptian Blues, part 1 and 2", presented on Wednesday October 9th, in the Scientific Methods in Art, Archeology, and Art Conservation Science symposium. |