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Topic: Uranophane

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Torbernite

Autunite

Coffinite

Uraninite

Ore

Uranium

Monazite

Lignite

Hubbert peak

	Alpha Track - Uranium Mineralization Concepts
		Uranophane is also similar to torbernite and autunite, except that silicate is contained in place of phosphate.
		Since autunite and uranophane contain calcium, they are relatively insoluble, and may form as caliche deposits or oxidation products.
		Uranophane is the most common secondary uranium silicate mineral.
	alphatrack.ca /main/UMC.html (2754 words)

	Uranophane
		Uranophane, also known as uranotile, is a rare mineral that forms from the oxidation of uranium...
		Uranophane Ca(UO2)2(SiO3OH)2Â·5H 2O is a rare calcium uranium silicate hydrate mineral that forms from the oxidation of uranium bearing minerals.
		Description: Uranophane is a bright yellow mineral formed by groundwater alteration of other uranium minerals.
	www.toprocks.net /MineralList/95/Uranophane.asp (359 words)

	mineralogy
		The oxidation of Nopal I uraninite and the sequence of alteration products, their intergrowths and morphologies are remarkably similar to those observed in reported corrosion experiments using spent fuel and unirradiated UO under conditions intended to approximate those anticipated for the proposed Yucca Mountain repository.
		Uranophane occurs in the middle of the void and replaces schoepite.
		Beta-uranophane consists of the coarser, yellow-colored crystals, whereas uranophane is composed of finer, blue-green crystals.
	www.swri.org /4org/d20/ghs/PBlanca/mineral.html (1286 words)

	Uranium Ore Minerals
		Uranophane is a hydrated calcium uranium silicate containing silica in place of the phosphate of autunite.
		It is slightly lighter in color and somewhat heavier than autunite (specific gravity 3.85) and has a different crystalline form; it may occur as stains or coatings without apparent crystal form or as finely flbrous or radiating crystal aggregates.
		Although it has as broad a geographic occurrence as the other two, uranophane, with a few exceptions, is usually present in smaller quantities.
	www.dangerouslaboratories.org /radore.html (4292 words)

	CR-Scientific: Catalog: Mineral Specimens: Rare-Earth & Radioactive Minerals (Site not responding. Last check: 2007-10-21)
		A thin crust of uranophane covering a couple of square inches on a rock face represents probably less than 5 grams of active material, so the dose rate would be no more than about 5 mR / hour if you held it directly in your hand.
		Uranophane area is about 2" x 1 1/2".
		Uranophane area is about 1" x 1 1/2".
	www.crscientific.com /minerals3.html (815 words)

	Uranophane Mineral Data
		Comments: Sharp, cubic crystals of fl uraninite on yellow uranophane.
		Uranophane is Radioactive as defined in 49 CFR 173.403.
		Weight of pure Uranophane in grams (gm) and Calculated Diameter of a Sphere with a Density of 3.90 gm/cc.
	webmineral.com /data/Uranophane.shtml (325 words)

	:: Star Uranium ::
		Uranophane is a radioactive mineral and a common minor ore of uranium.
		Uranophane, also known as uranotile, forms as a secondary mineral in the oxidation zone of uranium deposits as a product of uraninite alteration.
		The mineral is commonly bright butter yellow in colour and forms acicular or hair-like crystals that form radial aggregates and tufts.
	www.staruranium.com /index.php?section=uranium_properties (749 words)

	The Munich Show - Uranium Minerals
		Dark green crystals of cuprosklodowskite intermingled with yellow crystals of uranophane.
		Deep green colored crystals of cuprosklodowskite are seen in an exposed vug which is 2.3 cm across.
		Deep green colored crystals of cuprosklodowskite are seen in an exposed vug intermingled with either rich yellow kasolite or uranophane.
	www.trinityminerals.com /munich/uranium/uranium.htm (726 words)

	URANOPHANE (Hydrated Calcium Uranyl Silicate)
		The color of uranophane is bright butter yellow while cuprosklodowskite is dark green and sklodowskite is a bronze to golden yellow.
		Uranophane forms interesting specimens and fine specimens are sought after by collectors of rare uranium minerals.
		Remember, this is a radioactive mineral and should be stored away from other minerals that are affected by radioactivity and human exposure should definitely be limited.
	mineral.galleries.com /minerals/silicate/uranopha/uranopha.htm (221 words)

	[No title] (Site not responding. Last check: 2007-10-21)
		Solids—The Ca-uranyl silicate uranophane was identified in the series 2 tests at 85 °C and is suspected to be the U-limiting solid (Wilson 1990a, 1990b).
		In fact, of the three uranyl carbonates that lie above the calcite line in Figure 3, sharpite and urancalcarite are rare and occur in deposits where the predominant carbonate mineral in the host rocks is magnesian calcite or dolomite (Finch and Murakami 1999).
		Fontanite, which coexists with becquerelite and uranophane, occurs in pelitic silts and shales (Deliens and Piret 1992).
	www.ocrwm.doe.gov /documents/amr/22120/22120.txt (12588 words)

	The effect of ionizing radiation on uranophane -- Utsunomiya et al. 88 (1): 159 -- American Mineralogist
		The effect of ionizing radiation on uranophane -- Utsunomiya et al.
		The susceptibility of uranophane, a uranyl sheet silicate, ideally
		The temperature dependence of the amorphization dose of uranophane
	ammin.geoscienceworld.org /cgi/content/abstract/88/1/159 (187 words)

	isotopes
		uranophane and water samples from the vicinity of Nopal
		Isotopic analyses were conducted on acicular uranophane collected from fractures within the orebody at Nopal
		Three samples of uranophane, the most abundant uranyl phase in the deposit, yield
	www.swri.org /4org/d20/ghs/PBlanca/isotopes.html (860 words)

	Pennsylvania Uranium
		The absence of secondary uranium minerals in uraniferous rock in drill cores, excect where they cut fractures and bedding-plane surfaces, indicates that the massive parts of the rock have not been deeply weathered.
		Carnotite, tyuyamunite, liebigite, uranophane, and beta-uranophane have been identified in the Mount Pisgah deposit.
		An attempt is being made to isolate and identify the fl radioactive material that occurs in the matrix of the rock.
	www.dangerouslaboratories.org /rpenn.html (627 words)

	Uraniferi Page 2004 (Site not responding. Last check: 2007-10-21)
		A very interesting paper on these minerals has been published in 2002 by Rivista Mineralogica Italiana (n°3),authors Olmi,Sabelli,Senesi,Stara which has helped us in identifying the minerals.
		SAR28 - Uranophane - PhosphUranilite - € 18
		in association with Uranophane Crystals of 1 mm.
	www.smartminerals.com /sardegna/sard_Uraniferi_arcu.htm (283 words)

	Uranotile
		Join our forum to discuss all aspects of minerals, crystals and your obsession with them :-) We are dedicated to bringing you all the latest and most complete information in the mineral and crystal world and we regularly give our subscribers discounts at variouse mineral and crystal sites, competitions, news and much more.
		Uranophane, also known as uranotile, is a rare mineral that forms from the oxidation of uranium-bearing minerals.
		Uraninite Uranophane Uranothorite Uranotile Valentinite Valleriite Vanadinite Vandendriesscheite...
	www.toprocks.net /MineralList/96/Uranotile.asp (255 words)

	North Eastern Region
		Secondary uranium minerals like autunite, meta-autunite, uranophane, and beta-uranophane are visible in the outcrop.
		Uranium mineralisation is associated with magnetite bearing quartzite of Middle Proterozoic period.
		Uranium minerals like uranophane, beta-uranophane, uraninite, and brannerite occur as disseminations and stringers.
	www.dae.gov.in /amd/regions/ner.htm (545 words)

	Catalano Abstract (Site not responding. Last check: 2007-10-21)
		We have applied advanced, synchrotron-based X-ray spectroscopic and diffraction techniques to characterize the distribution, phase associations, and chemical form of uranium in samples from these sediments.
		X-ray absorption fine structure (XAFS) spectroscopic studies demonstrate that >95% of the uranium in all samples occurs as uranium(VI), and that the primary uranium species is likely a uranium(VI) silicate from the uranophane group of minerals.
		O; no other uranophane group mineral was observed.
	www-ssrl.slac.stanford.edu /conferences/ssrl30/catalano_abstract.html (325 words)

	A novel arrangement of silicate tetrahedra in the uranyl silicate sheet of oursinite, ...
		Oursinite is a rare Co-bearing uranyl silicate of the uranophane
		contain sheets that are based upon the uranophane anion topology,
		Ba(NpO2)(PO4)(H2O), its relationship to the uranophane group, and implications for Np incorporation in uranyl minerals
	ammin.geoscienceworld.org /cgi/content/abstract/91/2-3/333 (245 words)

	Transport of radionuclides in a natural flow system
		The source of uranium is the dissolution of uranophane (U6+)
		Mass of uranophane and uraninte dissolved after 10,000 years.
		The uranophane does not supply more uranium because it does not have more contact with the water.
	www.ija.csic.es /gt/hidro/CE-FI4W_Palmottu.html (231 words)

	EFFECT OF IONIZING RADIATION ON URANOPHANE (Site not responding. Last check: 2007-10-21)
		The secondary alteration products of spent nuclear fuel are important because they may retard the release of long-lived radionuclides, such as
		However, the alteration phases on the surface of corroded spent fuel will be subjected to high doses of ionizing radiation (20 Gy/h 100 years after discharge from the reactor); thus, we have investigated the effects of ionizing radiation on uranophane.
		Radiation effects were followed by in situ measurement using SAED and EELS in a TEM.
	gsa.confex.com /gsa/2001AM/finalprogram/abstract_26332.htm (408 words)

	The Arkenstone: Fine Mineral Specimens
		The thin acicular yellow crystals are Uranophane and the more flattened, lathelike crystals are the Guillemanite.
		JR-5 - Demesmaekerite with Uranophane (??) - $295
		At a guess, the micro-sized acicular yellow crystals are almost certainly Uranophane but this has not been analyzed to prove it and they may be somethign more rare
	www.irocks.com /rads1.html (588 words)

	SYSTEMATIC MINERALS
		URANOPHANE — Eagle Pass, Maverick County, West Texas
		URANOPHANE — Happy Jack Mine, White Canyon District, San Juan County, Utah
		URANOPHANE — Monument # 2 Mine, Monument Valley, Apache County, Arizona
	www.minresco.com /syst/u.htm (807 words)

	Uranophane-beta
		its Uranium content, and the Greek word phanos - "to appear" - and its different crystal structure from Uranophane
		Autunite, Azurite, Barite, Becquerelite, Calcite, Chalcocite, Chalcopyrite, Chrysocolla, Coffinite, Covellite, Fluorite, Galena, Goethite, Gypsum, Hematite, Kasolite, Malachite, Marcasite, Meta-Autunite, Metatorbernite, Molybdenite, Phosphuranylite, Pyrite, Quartz, Schoepite, Sphalerite, Torbernite, Uraninite, Uranophane, Uranopilite, Zippeite
		These are minerals known to be found with
	www.uraniumminerals.com /UTh/Uranophane-b.htm (85 words)

	Research
		(iv) Green rust incorporating Cr and the phase transformation; (v) Gold occurrences in arsenian-pyrite at Carlin-type deposit; (vi) Alteration of boro-silicate glasses (SON); (viii) Cations incorporation into the uranophane structure.
		Another topic was radiation effects in U(VI)-phase, which are common secondary alteration minerals precipitating near spent nuclear fuel in the geologic period.
		We have completed experiments of the ionizing radiation on uranophane and the uranophane in which Ca is substituted by foreign cations.
	www.geo.lsa.umich.edu /relw/groupmembers/satoshi/homepage2/research.htm (517 words)

	Uranophane (Site not responding. Last check: 2007-10-21)
		Uranophane, basic calcium uranyl silicate, formula Ca(UO [SiO
		Uranophane is a secondary mineral occurring in the oxydation zones of uranium deposits as an alteration product of uraninite (uranium oxide, UO It frequently occurs in association with other secondary uranium minerals such as autunite and torbenite.
		The specimen shown in the picture comes from Margarita Mine, Pena Bianca, Chihuahua, Mexico.
	www.kgg.org.uk /u-phaneh.html (69 words)

	SKLODOWSKITE (Hydrated Magnesium Uranyl Silicate)
		Its green-yellow to yellow velvety tufts are attractive and make for an unusual mineral specimen.
		Although less brilliantly colored than its cousins cuprosklodowskite and uranophane, sklodowskite is still much sought after by rare mineral collectors.
		Remember, this is a radioactive mineral and should be stored away from other minerals that are affected by radioactivity and human exposure should be limited.
	mineral.galleries.com /minerals/silicate/sklodows/sklodows.htm (177 words)

	Ruggles Mine (Site not responding. Last check: 2007-10-21)
		Our team (accompanied by two bona-fide geologists) visited Ruggles Mine, a fee mine in Grafton, NH.
		Their brochure advertises uranium minerals such as Uranophane, Uranospinite, Torbernite, and Autunite.
		After extensive prospecting, we managed to locate just one vein of radioactive rock and immediately started hammering.
	www.dangerouslaboratories.org /ruggles.html (113 words)

	v-z - Gitology
		Localisation: Zaïre, Shaba, Kamoto M. Paragenèse: Francevillite, Françoisite-(Nd), Kamotoite-(Y), Masuyite, Métasaleeite, Métastudtite, Métatorbernite, Phosphuranylite, Roubaultite, Shabaite-(Nd), Sklodowskite, Uraninite, Uranophane, Zeunérite.
		Localisation: Zaïre, Shaba, Musonoï M. Paragenèse: Becquerelite, Béta-uranophane, Cuprosklodowskite, Curite, Desmesmaekerite, Derriksite, Francevillite, Guilleminite, Kasolite, Marthozite, Masuyite, Métatorbernite, Métatyuyamunite, Rutherfordine, Sengierite, Schoepite, Sklodowskite, Soddyite, Tyuyamunite, Uraninite, Uranophane, Vandenbrandeite, Azurite, Barytine, Brochantite, Chalcocite, Chalcoménite, Cobaltoménite, Digénite, Or, Hématite, Hétérogénite, Malachite, Mottramite, Oosterboschite, Palladium, Trogtalite, Vauquelinite, Wulfénite.
		Localisation: Zaïre, Shaba, Swambo M. Paragenèse: Billietite, Curite, Ianthinite, Kasolite, Métatorbernite, Renardite, Sklodowskite, Soddyite, Studtite, Swamboite, Uraninite, Uranophane, Vandenbrandeite, Goethite, Or, Gypse, Hématite, Hétérogénite, Lizardite, Malachite, Siegénite.
	www.micromineral.org /gito/v-z.html (389 words)

	Definition of uranophane - Merriam-Webster Online Dictionary (Site not responding. Last check: 2007-10-21)
		Click here to search for another word in the Merriam-Webster Online Dictionary.
		Visit Britannica.com for more information on "uranophane "
		Get the Top 10 Search Results for "uranophane "
	www.bonus.com /contour/merriam_webster/http@@/www.m-w.com/dictionary/uranophane (55 words)

	Radioactive
		RA9 Metazeunerite - White Canyon District, San Juan County, Utah $10; As above.
		RA10 Autunite and Uranophane (?) - Lawson Mine, Spruce Pine, North Carolina $10; The top pocket contains tabular autunite crystals, while the bottom pocket has what looks like a small cluster of uranophane.
		I haven't had this tested to positively ID the uranophane (because the testing would destroy the cluster), so that's my best guess.
	www.kcminerals.com /radioactive.htm (404 words)

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