jacutingaEtymologyBorrowed from Brazilian Portuguese jacutinga, from Old Tupi îakutinga. The ore is so called because it resembles the bird.nounA black-fronted piping guan (Pipile jacutinga).A micaceous iron ore, related to itabirite and associated with gold.“ORIGIN OF THE ORES. Massive Ores and Jacutinga. - Itabirite and bedded ore were formed together under similar conditions, and statements regarding the origin of one apply to the other.[…] Fragmental Ores […] are due to the surface weathering and erosion of the massive ores, jacutinga and itabirite above described.”