hematite

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hematite

hematite , mineral, an oxide of iron, Fe ₂ O ₃ , containing about 70% metal, occurring in nature in red to reddish-brown earthy masses and in steel-gray to black crystalline forms. Hematite that has a metallic luster is called specular hematite, or specular iron. The red powdered hematite is used as a pigment ( ocher ) and as rouge in polishing. Hematite is the most important ore of iron. Extensive and richly productive deposits occur in the Lake Superior region (Michigan, Minnesota, and Wisconsin) and the Birmingham district (Alabama). The mineral is widely distributed throughout the world and is responsible for the red coloration of many sedimentary rocks. See limonite .

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hematite

World Encyclopedia | 2005 | Â© World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

hematite One of the most important iron ores, containing mainly ferric oxide, Fe₂O₃. Containing 70% iron by weight, it occurs in several forms and from steel-grey to black in colour.

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Free newspaper and magazine articles

	HEMATITE CAVRADI, SWITZERLAND. Magazine article from: Rocks & Minerals; 5/1/1998
	Locality information for quartz with hematite from China.(Collector's Note)(Brief Article) Magazine article from: Rocks & Minerals; 11/1/2003
	Misinformation about Mars on Earth.(Let's get it Right) Magazine article from: Rocks & Minerals; 7/1/2004

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	HEMATITE CAVRADI, SWITZERLAND. Magazine article from: Rocks & Minerals; 5/1/1998; ; 700+ words ; ...manganite from Ilfeld, Germany: and hematite from the Alpine countries. Prices for...indeed rare. Well-crystallized Alpine hematite in both roselike aggregates (eisenrose...this issue's Connoisseur's Choice. Hematite occurs in a variety of habits, varying...
	Brazilian hematite Magazine article from: Mineralogical Record; 3/1/2000; ; 565 words ; Brazilian Hematite Catherine I Gaber 5707 Northfield Road Bethesda...class, beautifully crystallized specimens of hematite occurring as reniform, specular, bladed iron "roses" and martite (hematite pseudomorph after magnetite). Less than...
	Pelham-Grayson Inc. Unveils Versatile New Jewelry Collection: Magnetic Hematite Wraps Promote Both Beauty and Well-Being. PR Newswire; 11/23/2004; 700+ words ; ...one. Pelham-Grayson's new magnetic hematite wrap jewelry is as versatile as it is...offers the potential benefits of magnetic hematite, recognized by many for its healing...consists of a strand composed of faceted hematite beads, translucent or colored crystal...
	New Recycling Process from Hematite Holds Promise for Auto Industry. PR Newswire; 11/11/1998; 700+ words ; ...a product development executive at Hematite Manufacturing in Guelph, Ontario, Canada...Hotel Inter-Continental in Chicago that Hematite has developed a low-cost process for...annually, according to Van Veen. He said Hematite recently began pilot production of parts...
	Mars Rover Surprises Continue: Spirit, Too, Finds Hematite. News Wire article from: Ascribe Higher Education News Service; 6/25/2004; 700+ words ; ...instrument at the tip of its robotic arm and detected hematite. Hematite, a material identified from orbit, was NASA's...through on the new scientific findings. Spirit's hematite finding is in a rock dubbed "Pot of Gold," about...
	Locality information for quartz with hematite from China.(Collector's Note)(Brief Article) Magazine article from: Rocks & Minerals; 11/1/2003; ; 654 words ; ...large volume of remarkable specimens of quartz with hematite (fig. 2) has been coining from China, but there...the "iron belt." Local people prospected for hematite. The quartz/hematite veins are obviously limited to the small area of...
	Internal carbon addition during hematite fluxed pellet production at the Tilden Mine Magazine article from: Minerals & Metallurgical Processing; 11/1/2003; ; 700+ words ; ...are discussed. Keywords: Iron ore, Hematite fluxed pellet production, Carbon addition...coke breeze) during the production of hematite fluxed pellets on the two grate-kiln...problem at Tilden during the production of hematite fluxed pellets with 100% coal firing...
	Angang subsidiary resumed the production of hematite concentrate. Newspaper article from: China Business News; 6/28/2004; 461 words ; ...subsidiary resumed the production of hematite concentrate SHANGHAI. June 28. INTERFAX...has decided to resume the production of hematite concentrate, and the construction of...planned annual treatment capacity of hematite ores is 3 mln tons, while the production...
	Chongqing Steel to develop Taohua hematite mine in Chongqing. Newspaper article from: China Business News; 10/22/2007; 619 words ; Chongqing Steel to develop Taohua hematite mine in Chongqing Shanghai. October...plans to start construction on its Taolua hematite mine in Wushan country in the Chongqing...s county-level government over the hematite project, which aims to have a 1.5...
	Metalloinvest's MGOK aims to produce 2.5 mln tonnes of hematite concentrate. Newspaper article from: Russia & CIS Business and Financial Newswire; 5/23/2008; 668 words ; ...MGOK aims to produce 2.5 mln tonnes of hematite concentrate MOSCOW. May 23 (Interfax...by Metalloinvest, has begun producing hematite concentrate in commercial quantities...MGOK plans to produce 7,000 tonnes of hematite concentrate with 58% iron content in...