jacutinga noun2 •A black-fronted piping guan (Pipile jacutinga). •(old-fashioned) A micaceous iron ore, related to itabirite and associated with gold.[…] itabirite, because he noted that "jacutinga" was the most important host rock for gold mineralization, whereas itabirite was an unfavorable host rock. — 1966 formsjacutingas
