Difference between revisions of "File:Drum patent yellow with arrows PPL 1000x.jpg"
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Patent Yellow in dispersion, PPL, 1000x. Mounted in Cargille Meltmount RI = 1.662. | Patent Yellow in dispersion, PPL, 1000x. Mounted in Cargille Meltmount RI = 1.662. | ||
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+ | Wide-angle XRD (Univ. of Delaware) confirmed the presence of Lorettoite (Pb7O6Cl2) in this sample. | ||
This sample was taken from a drum in the Colonial Williamsburg Collection (1957-29). | This sample was taken from a drum in the Colonial Williamsburg Collection (1957-29). |
Latest revision as of 08:00, 11 April 2022
Patent Yellow in dispersion, PPL, 1000x. Mounted in Cargille Meltmount RI = 1.662.
Wide-angle XRD (Univ. of Delaware) confirmed the presence of Lorettoite (Pb7O6Cl2) in this sample.
This sample was taken from a drum in the Colonial Williamsburg Collection (1957-29). Other pigments in the dispersion include lead white, red lead, and vermilion. Examined with a Nikon Eclipse NiU upright microscope, digital images captured with Nikon DS-Ri1 camera and Nikon NIS Elements BR software v.5.20.01.
Kirsten Moffitt, Conservator & Materials Analyst, Colonial Williamsburg Foundation.
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