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	Carnotite - Wikipedia, the free encyclopedia
		Carnotite is a potassium uranium vanadate mineral with chemical formula: K
		Carnotite is a bright to greenish yellow mineral that occurs typically as crusts and flakes in sandstones.
		It is a secondary vanadium and uranium mineral usually found in sedimentary rocks in arid climates.
	en.wikipedia.org /wiki/Carnotite (234 words)

	Rocks and Minerals Tour: Envi Sci Dept, UVA
		Carnotite is distinguishable by its bright yellow color and streak.
		Carnotite is a secondary mineral that requires water that has been in contact with primary uranium and vanadium minerals to form.
		Carnotite is an important ore of uranium and vanadium.
	www.evsc.virginia.edu /tours/rockmin/carnotite.shtml (140 words)

	Uranium Ore Minerals
		Carnotite, a potassium uranium vanadate, is the most important of the secondary uranium ore minerals, having provided possibly 90 percent of the uranium production from secondary deposits.
		Although carnotite is the principal mineral in the carnotite deposits, nearly twenty other secondary uranium minerals are found associated with it.
		In a large number of these deposits, the carnotite is intimately associated with silicified or carbonized wood fossil wood), and a variety of coal-like and asphaltic materials, all of which are good indicator substances for carnotite.
	www.dangerouslaboratories.org /radore.html (4292 words)

	CARNOTITE (Hydrated Potassium Uranyl Vanadate)
		Carnotite is a relatively uncommon mineral, yet common enough to be an important ore of uranium and vanadium.
		Carnotite is closely related to tyuyamunite, Ca(UO The chemistries are very similar with potassium replacing calcium and a different percentage of water, however the structures are slightly different as tyuyamunite is orthorhombic and carnotite is monoclinic.
		Carnotite is an uncommon and interesting uranium mineral that can coat host rocks with an attractive yellow powder.
	mineral.galleries.com /minerals/phosphat/carnotit/carnotit.htm (270 words)

	Carnotite
		In close proximity to the yellow Carnotite are deposits of fl Uraninite.
		As the deposits occur as bands and 'nodules' within the sandstone, it is likely that they represent a type of fossil of a soft tissued creature, or colonies of bacteria.
		The general physical properties of the Carnotite and Uraninite cannot be determined from this specimen.
	www.uraniumminerals.com /UTh/Carnotite.htm (292 words)

	Carnotite
		Carnotite is named for the French mining engineer and chemist Marie-Adolphe Carnot.
		It is found in reducing environments, and is believed to form by water altering existing uranium and vanadium minerals.
		In the sandstones of Colorado and Utah, carnotite is often found associated with petrified trees.
	www.museums.udel.edu /mineral/mineral_site/collection/alphabetical/C/carnotite.html (46 words)

	Mineral Resources in Missouri
		Carnotite is a rare mineral which usually occurs in earthy masses.
		Carnotite is found in Missouri, but has not been mined commercially because it is not economical possible.
		The location of carnotite in Missouri is near St. Genevieve county within cracks in the limestone.
	www.emporia.edu /earthsci/amber/go336/dreyer (1970 words)

	Carnotite
		Extraction and recovery of radium, uranium and vanadium from carnotite, ([United States] Bureau of mines.
		The determination of uranium and vanadium in the carnotite ores of Colorado and Utah (Amer.
		The radium-uranium ratio in carnotites, ([U.S.] Bureau of mines.
	www.veryhappening.com /things/carnotite (148 words)

	[No title]
		These were carnotite ores which contained vanadium and uranium, with a small quantity of radium.
		During the life of the Manhattan Project many of the old tailings dumps were re-worked for their uranium content, and it was indicated that about 10% of the uranium for the Manhattan 2 Project came from this source.
		The ores are the carnotites which have been recognized for many years, roscoelite, autunite, uranite, and torbermita.
	www.gwu.edu /~nsarchiv/radiation/dir/mstreet/commeet/meet14/brief14/tab_e/br14e1b.txt (7066 words)

	Carnotite
		Carnotite is a relatively uncommon mineral, yet common enough to be an important ore of uranium...
		The presence of the uranium-mineral carnotite was identified in coal from the Laramie formation in Colorado by electroscope and chemical analyses.^The carnotite was found to occur as incrustations and inclusions in fractured and partially...
		Carnotite is an important ore of both uranium...
	www.toprocks.net /MineralList/16/Carnotite.asp (476 words)

	Carnotite (Site not responding. Last check: 2007-10-21)
		It is canary yellow to yellowish green with a yellow streak.
		Since it is quite fragile, it powders easily and sometimes coats the host rock bright yellow.
		Carnotite is an important ore of both uranium and vanadium and is commonly found with tyuyamunite.
	www.museums.udel.edu /mineral/mineral_site/education/radioactive/carnotite.html (82 words)

	Government Museum Chennai
		The important uranium bearing minerals are pitchblende, carnotite, torbernite, autunite and uranophane.
		Torbernite is the most common secondary uranium mineral and is found associated with primary uranium minerals.
		Carnotite is a vanadate of potassium and uranium.
	www.chennaimuseum.org /draft/gallery/07/05/economi2.htm (234 words)

	Carnotite is a mineral with the chemical formula... (Site not responding. Last check: 2007-10-21)
		Carnotite is a mineral with the chemical formula...
		"Carnotite" is a mineral with the chemical formula K2(UO2)2(VO4)2.3H2O.
		Carnotite has crystals with a monoclinic habit, it has a hardness of about 2, and a bright yellow color.
	www.geodatabase.de /Carnotite (112 words)

	Carnotite: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-10-21)
		Carnotite is a potassium (A light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite)
		Carnotite is a bright to greenish yellow mineral that occurs typically as crusts and flakes in sandstones, Exception Handler: No article summary found.
		It is a secondary vanadium (A soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite)
	www.absoluteastronomy.com /ref/carnotite (1790 words)

	AmericanHeritage.com / THE TIME OF THE GREAT FEVER
		It took twenty years, however, for carnotite (as it became known, after the French physicist Carnot) to gain any value, and then only for the small amounts of radium—one part for every 3,000,000 parts of bothersome uranium—it contained.
		In the 1920’s vanadium, also found in carnotite, became an item of export because of the great tensile strength it lent to steel, and the veterans of the radium hunt prospered in a region that always had been shortchanged in deposits of gold and silver.
		But miners who sold carnotite to the government and watched the big mounds of yellow tailings (the old “waste heaps” of the vanadium boom) disappear at United States Vanadium Company’s Uravan mill still insist it was all home-grown.
	www.americanheritage.com /articles/magazine/ah/1981/4/1981_4_74.shtml (4019 words)

	OAHP - State Historical Fund Harvesting Historical Riches (Site not responding. Last check: 2007-10-21)
		Later, scientists at the Smithsonian Institution identified the material as carnotite, a mineral that contains radium, vanadium, and uranium.
		By 1899 Madame Curie's use of radium for medical purposes had opened up new markets for carnotite ore. Independent miners and large companies staked claims and began producing a significant portion of Madame Curie's radium.
		In 1914 a boarding house was built for the single men who worked in the area.
	www.coloradohistory-oahp.org /programareas/shf/harvest/2002/uravan.htm (1078 words)

	RGS Technical Page (Site not responding. Last check: 2007-10-21)
		In early 1912, this Denver Station determined that large quantities of Colorado carnotite and pitchblende were being exported to European countries for the extraction of radium.(24) The Bureau was concerned with this exportation due to the discrepancy between the price paid for the carnotite ($80 per ton) and that for radium ($120,000 per gram).
		Stopes were seldom large, and frequently the walls of openings left after removal of carnotite ore contained sufficient vanadium content to constitute ore some 20 years later when vanadium was in demand.
		Some believe that carnotite will "come back." To add to the problem of competition with the Belgian Kongo [sic] is added the more recent discovery of abundant rich sources of radium in the Canadian arctic circle.
	users.viawest.net /~bdwhite/atomic.htm (8495 words)

	Carnotite Mineral Data
		Comments: Bright yellow, fluorescent crystals of carnotite on sandstone.
		Carnotite is Radioactive as defined in 49 CFR 173.403.
		Weight of pure Carnotite in grams (gm) and Calculated Diameter of a Sphere with a Density of 5.07 gm/cc.
	webmineral.com /data/Carnotite.shtml (281 words)

	Carnotite (Site not responding. Last check: 2007-10-21)
		Carnotite (hydrated vanadate of potassium and uranium) is one of the world's major sources of uranium.
		Significant amounts of this semi-rare mineral occur in the desert of the southwestern United States, and in Russia.
		Carnotite is mined for its vanadium and uranium contents.
	www.alientravelguide.com /science/chemistr/inorgani/compound/vanadate/carnotit.htm (68 words)

	TYUYAMUNITE (Hydrated Calcium Uranyl Vanadate)
		Tyuyamunite is a rare uranium mineral that is named for the type locality from where it was first described, Tyuya Muyun, Ferghana, Uzbekistan.
		Meteoric oxygenated waters dissolve the uranium from primary uranium minerals and the uranium is later deposited in reducing enviroments more favorable to the formation of carnotite and tyuyamunite.
		Associated Minerals include carnotite and other uranium and vanadium minerals in sandstones.
	mineral.galleries.com /minerals/phosphat/tyuyamun/tyuyamun.htm (276 words)

	[No title] (Site not responding. Last check: 2007-10-21)
		Advancing to a consideration)Df radium as a mineral and ore, Mr.
		Par- sons said that there were two sources, carnotite and pitchblende.
		Most of the foreign supply is from pitch- blende, from deposits in Austria, Portugal and Australia.
	www-tech.mit.edu /archives/VOL_034/TECH_V034_S0014_P001.txt (1103 words)

	Replies (Site not responding. Last check: 2007-10-21)
		If it is 'Yellow Cake", it is just ground carnotite ore (Uranyl vanadate).
		However, carnotite is the ore mined in the "Four corners" region of the US.
		As I recall, pitchblende was mined in what was the Belgian Congo, not carnotite.
	www.freerepublic.com /focus/news/789172/replies?c=2 (138 words)

	carnotite - OneLook Dictionary Search
		Tip: Click on the first link on a line below to go directly to a page where "carnotite" is defined.
		carnotite : Encarta® World English Dictionary, North American Edition [home, info]
		carnotite : The American Heritage® Dictionary of the English Language [home, info]
	www.onelook.com /?w=carnotite&ls=a (113 words)

	Carnotite Gallery (Site not responding. Last check: 2007-10-21)
		Yellow encrustations of Carnotite on conglomerate rock matrix.
		Powdery grains of yellow carnotite in a sandstone matrix measuring 3x3 inches in the collection of Charles Creekmur.
		A 3 1/2 x 2 inch specimen of carnotite from a unnamed mine in the vicinity of Moab, Utah.
	www.mindat.org /gallery.php?min=907 (228 words)

	[No title]
		Randlett, SE of Randlett, SW1/4 sec.3, T.SS, R.12W, in a sandstone: autunite, carnotite, uraninite (Gilmore 1963).
		S of Durham near Cheyenne: carnotite (bright yellow), tyuyamunite (yellow-green) (Zeitner 1972).
		Washita County Clinton, S of, Cloud Chief Formation: carnotite, tyuyamynite (Gilmore 1963).
	www.brightok.net /~rockman/Images/OKLALIST.TXT (2610 words)

	Carnotite: Carnotite mineral data from mindat.org mineralogy database
		Carnotite: Carnotite mineral data from mindat.org mineralogy database
		Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
		Vanadate of Zn and Ni Chemical Properties of Carnotite
	www.mindat.org /min-907.html (164 words)

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