Verdigris — asetate y'umuringa, irangi ry'icyatsi kibisi-bururu rikorwa mu gushyira amabati y'umuringa mu mwuka wa acide asetike (divayi ikaze). Ni rimwe mu marangi akozwe n'abantu ya kera cyane, ryakoreshejwe kuva kera mu bushushanyi no mu nyandiko. Ntirihamye cyane — rishobora kwijima cyangwa guhinduka umukara-umutuku mu binyejana bitewe n'ifatanyo ryakoreshejwe.