multispectral imaging paintings documentation by Antonino Cosentino. Multispectral imaging documentation of a painting it's fast and it's done with mobile equipment. It takes 2 hours for a high resolution multispectral imaging report.
micrograph image of Cobalt Yellow's unique flake shaped particles. Cobalt Yellow, Aureolin, is one of the only mineral pigments to have grains that remain fairly uniform unto each other. It is also my favorite yellow, even if its super toxic.
Two oak galls in a beaker and a jar of iron(II) sulfate, ingredients of iron gall ink. The papers on the table are instructions for making the ink. Photograph taken at the California State Archives, 1020