Copper in the ArtsFact 8 of 9
Around the time of the U.S. Revolution paint pigments were generally not available. Some people made a greenish pigment by suspending copper metal in a container over a pool of vinegar. This would result in a patina or copper salt to form on the surface of the copper which could then be scraped off and used, ground up, and used in paint to produce a paint color we call verdigris.
