elementVerdigrisElements · Colors & materialsGreen copper acetate pigment of older painting and craft. Not malachite the ore, and not copper metal alone.Verdigris is used in Medicine.Dioscorides’ De Materia Medica lists verdigris (copper green) among sharp drying drugs for ulcers and eyes. First-century pharmacological use of the copper acetate green, not copper metal alone and not malachite.from Pedanius Dioscorides · De Materia Medica, 1st century CEused in · sourced · documentedsourcesDe Materia Medica · Pedanius DioscoridesDioscorides, De Materia Medica.