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Itabirite

This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.Find sources: "Itabirite" – news · newspapers · books · scholar · JSTOR (January 2011)

Itabirite, also called banded-quartz hematite or hematite schist, is a foliated, metamorphosed oxide-facies iron formation in which the original chert or jasper bands have been recrystallized into macroscopically distinguishable grains of quartz and the iron is present as thin layers of hematite, magnetite, or martite (pseudomorphs of hematite after magnetite).[1]

The term was originally applied in Itabirito (Pico de Itabirito), in the state of Minas Gerais and southern part of Belo Horizonte, Brazil, to a high-grade, massive specular hematite ore (66% iron) associated with a schistose rock composed of granular quartz and scaly hematite. The term is now widely used outside Brazil.[2]

References

  1. ^ "Dictionary of Mining, Mineral, and Related Terms". U.S. Bureau of Mines. Archived from the original on 3 December 2010. Retrieved 2010-12-12.
  2. ^ Carlos Alberto Rosière et al.: Itabira Peak, State of Minas Gerais. Geographic, historical and structural landmark of the Quadrilátero Ferrífero. In: Sítios Geológicos e Paleontológicos do Brasil (SIGEP) 042, 2005 Archived 2012-03-20 at the Wayback Machine


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Itabirite
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