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Topic: Baddeleyite

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	Process for the separation of radioactive impurities of baddeleyite - Patent 4268485 (Site not responding. Last check: 2007-10-21)
		For recrystallization of the baddeleyite or the baddeleyite concentrate quartz preferably is used as solvent.
		Surprisingly, it is found that in the recrystallization pursuant to the invention of the zirconium dioxide of baddeleyite from a melt of SiO.sub.2, the ZrO.sub.2 -crystals obtained from the melt undergo a considerable purification in relation to the impurities of U.sub.3 O.sub.8 and ThO.sub.2 loaded by radioactive isotopes.
		Baddeleyite concentrate as in Example 1 is mixed without further preliminary grinding with 30% by weight of quartz sand and melted down homogeneously in the electric-arc furnace.
	www.freepatentsonline.com /4268485.html (2226 words)

	Process for upgrading ores containing baddeleyite - Patent 4067953 (Site not responding. Last check: 2007-10-21)
		As a result of this, the baddeleyite concentrate after high intensity magnetic separation was not as pure as it might have been, whilst excessive amounts of baddeleyite were lost in the tailings.
		Foskorite and carbonatite ore from the Loole Kop plug of the Phalaborwa igneous complex is coarse ground, subjected to the removal of the bulk of the magnetite by magnetic separation, followed by flotation of the copper minerals and soap or fatty acid flotation of the apatite.
		The result of this acid treatment of the middling fraction is a physical release of the baddeleyite in particulate form from contaminating mineral particles which are present in the middling fraction attached to the baddeleyite in the form of composite particles strongly held together by a cement of siliceous and/or carbonatitic material.
	www.freepatentsonline.com /4067953.html (6257 words)

	The solubility of baddeleyite (ZrO2) and zircon (ZrSiO4)
		The solubility of baddeleyite (ZrO2) and zircon (ZrSiO4)
		Solubility of baddeleyite in a HCl fluid was studied by a capsule technique with a further analysis of the composition of quenched solution and solid phase in a hydrothermal high pressure apparatus [12].
		The values of free Gibbs energy for zircon and baddeleyite were reconciled from equilibrium (16) using our experimental data on the concentration of silicon in the solution in equilibrium with baddeleyite-zircon association and on the concentration of zirconium in the solution in equilibrium with zircon-quartz association.
	library.iem.ac.ru /exper/v8_1/valya.html (4489 words)

	Bayerisches Geoinstitut - Annual Report 2003 - Size effects on the structure and phase transition behaviour of ...
		A comparison of the in situ high-pressure XRD spectra of the nanocrystalline and bulk baddeleyite structures at 34(1) GPa shown in Fig.
		Significantly, the a and b unit cell parameters of the nanocrystalline baddeleyite are 1.4 % and 1.7 % larger than those of the bulk phase.
		The baddeleyite structure is not quenchable even as nanocrystals and, therefore, could not be examined under TEM.
	www.bgi.uni-bayreuth.de /annual_report/2003/c_94.phtml (831 words)

	zrchemistry.gif (Site not responding. Last check: 2007-10-21)
		The breakdown of zircon and baddeleyite through reaction with sodium hydroxide is the most common method for pure oxide and chemical production.
		The structure of the oxygen ions is not therefore planar and a buckling in the O11 plane occurs, and the O1 plane is quite irregular.
		The twin plane is composed of O11 ions which allow the oxygen ions in each of the twins to move slightly out of their equilibrium position resulting in minimal distortion.
	www.zrchem.com /zrchemistry.htm (1204 words)

	* Baddeleyite - (Jewelry): Definition
		While it occurs naturally in small quantities as the mineral baddeleyite, all of the CZ on the market is produced in the laboratory through skull-melting techniques.
		(Cubic zirconia, a well-known diamond simulant, is an altered form of the mineral baddeleyite, whose chemical composition is zirconium oxide.)...
		Henry Barwood of the Indiana Geological Survey identified the mineral as baddeleyite, zirconium oxide, a pseudomorph of the weathering of kimzeyite.
	en.mimi.hu /jewelry/baddeleyite.html (136 words)

	AllRefer.com - zirconium, Compound & Element (Compounds And Elements) - Encyclopedia
		It always occurs with hafnium, which has almost identical chemical properties.
		The chief ore is zircon (the silicate); baddeleyite (the oxide) also has some importance.
		Zircon is recovered (along with monazite, ilmenite, and rutile) from certain beach sands in New South Wales, Australia, and near Jacksonville, Fla. The metal is produced by the Kroll process.
	reference.allrefer.com /encyclopedia/Z/zirconiu.html (614 words)

	Baddeleyite - Encyclopedia, History, Geography and Biography
		This article about a specific mineral, mineraloid, or type of rock is a stub.
		This page was last modified 00:54, 25 Jan 2005.
		This encyclopedia, history, geography and biography article about Baddeleyite contains research on
	www.arikah.net /encyclopedia/Baddeleyite (68 words)

	baddeleyite.html (Site not responding. Last check: 2007-10-21)
		Description: Baddeleyite is a rare zirconium oxide found in a variety of environments, including kimberlite, syenite and gabbro.
		It may survive weathering as a detrital mineral.
		KENOSHA COUNTY: Baddeleyite occurs as coatings on zircon from a subsurface, diamond-bearing lamprophyre diatreme within the outskirts of Kenosha.
	www.uwrf.edu /%7Ewc01/baddeleyite.htm (45 words)

	Baddeleyite (Site not responding. Last check: 2007-10-21)
		Baddeleyite is a mineral that consists of zirconia (ZrO2).
		All is still licensed under the GNU FDL.
		Copyright (C) 2001, 2002 by used in any sales of Project Gutenberg eBooks or other materials be express permission.] *END THE SMALL PRINT!
	www.termsdefined.net /ba/baddeleyite.html (137 words)

	Catalogo Articoli (Site not responding. Last check: 2007-10-21)
		SHRIMP baddeleyite age for the Fraser Dyke Swarm, southeast Yilgarn Craton, Western Australia
		Evidence for crystals from the lower mantle: baddeleyite megacrysts of theMbuji Mayi kimberlite
		Ion microprobe baddeleyite and zircon ages for Late Archaean mafic dykes of the Pilbara Craton, Western Australia
	serials.cib.unibo.it /cgi-ser/start/it/spogli/ds-s.tcl?soggetti=baddeleyite (477 words)

	Baddeleyite from LiveJournal (Site not responding. Last check: 2007-10-21)
		Results 1-1 of about 1 for the Baddeleyite (0.11 sec)
		We interpret this as a result of preferential partitioning of 231Pa to baddeleyite.
		Fifteen phlogopite and tetraferriphlogopite fractions from five carbonatite and phoscorite samples yielded precise Rb-Sr isochron age of 372.2 ± 1.5 Myr, which is 5 to 7 Myr younger than the best est.
	www.ljseek.com /search/Baddeleyite (107 words)

	Baddeleyite--Adamsminerals.com--Your online mineral specimen resource --Minerals A-E (Site not responding. Last check: 2007-10-21)
		BDD-11 Baddeleyite--Bozemon, MT--Nice 1-2cm specimen with fl baddeleyite and possible sapphire crystals.
		BDD-10 Baddeleyite--Bozemon, MT--Nice 4cm specimen with fl baddeleyite and sapphire crystals.
		For more up to date localities email me at adam@nospamadamsminerals.com.
	www.adamsminerals.com /baddeley.htm (46 words)

	Sale: Baddeleyite (Zirconium) concentrate, ~100 MT, price: less than price on the factory. Fax: +7 812 1725556. e-mail: ... (Site not responding. Last check: 2007-10-21)
		Sale: Baddeleyite (Zirconium) concentrate, ~100 MT, price: less than price on the factory.
		Sale: Baddeleyite (Zirconium) concentrate, produced in Kovdor, Russia
		: Sale: Baddeleyite (Zirconium) concentrate, produced in Kovdor, Russia : Quantity: ~100 MT. : Price: less than price on the factory.
	www.fl-weather.net /messages/soap_manufacturer_11434.html (146 words)

	Birthdate for the Iapetus Ocean? A precise U-Pb zircon and baddeleyite age for the Long Range dikes, Southeast Labrador ... (Site not responding. Last check: 2007-10-21)
		A precise U-Pb zircon and baddeleyite age for the Long Range dikes, Southeast Labrador -- Kamo et al.
		A precise U-Pb zircon and baddeleyite age for the Long Range dikes, Southeast Labrador
		This article has been cited by other articles:
	geology.geoscienceworld.org /cgi/content/abstract/17/7/602 (158 words)

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