Abstract
Ore minerals are usually characterized to the formation of mineral deposits. Textures can provide evidence of the nature of processes such as initial ore deposition, post-deposition rebalancing or metamorphism, deformation, annealing and weathering. The recognition and interpretation of textures is usually the most important step in understanding the origin and evolution of an ore. As they are ores that contain high economic value, and their study is necessary to correctly define the metallurgical alternatives for an adequate process of obtaining metallic products. Among the most important mines that are operating in Carajás are N4 (iron), Azul (manganese), Sossego and Salobo (copper) and Onca Puma (nickel). Most ores, show opaque characteristics that can be well studied by microscopy of opaque minerals, but others with SEM/EDS. The textures of these ore minerals are distinctive among them, highlighting the disseminated copper minerals subject to mineral liberation and micritic manganese minerals and fines granulates nickel-bearing minerals, ready for metallurgical extraction. Keywords: bornite; chalcopyrite; cryptomelane; chysotile; lizardite.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
