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Topic: Chalcopyrite

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	MetaphysicalRealm1.com - CRYSTALS AND GEMSTONES - CHALCOPYRITE
		Sometimes I can locate things for you that you have had difficulty finding, so if you have something on your wish list that you are having difficulty locating, please let me know.
		They tend to be on the blue side or on the magenta side of color, but you will occasionally see other colors, too.
		You have the delightful colors of Chalcopyrite (Peacock Ore) and the lovely golden shimmers of the Golden Pyrite.
	www.metaphysicalrealm1.com /chalco1.html (613 words)

	chalcopyrite.htm
		Chalcopyrite is also found in the southwestern part of the state in the deposits of the Upper Mississippi Valley zinc-lead district.
		- Chalcopyrite with azurite and malachite occurs in the NW NW sec.
		- Chalcopyrite occurs with pyrite, malachite and quartz in sheared gneisses and greenstones in an outcrop in the NW SW SW sec.
	www.uwrf.edu /~wc01/chalcopyrite.htm (1618 words)

	Recovery of copper from chalcopyrite utilizing copper sulfate leach - Patent 3957602
		Copper is recovered from chalcopyrite by means of a pollution-free hydrometallurgical process which entails leaching and converting the chalcopyrite with copper sulfate in order to produce an insoluble copper sulfide, a soluble iron sulfate and sulfuric acid.
		The process of claim 1 wherein the chalcopyrite reaction is conducted from about 180.degree.C to about 200.degree.C. The process of claim 1 wherein the mole ratio of copper sulfate to chalcopyrite reactants is at least about two to one.
		A commercial copper concentrate consisting of about 75% chalcopyrite and assaying 26.1% copper, 27.5% iron and 31.4% total sulfur was reacted with 2.2 moles of copper as copper sulfate per mole of copper in the chalcopyrite concentrate at 180.degree.C for 3 hours.
	www.freepatentsonline.com /3957602.html (2942 words)

	Chalcopyrite
		Chalcopyrite is found very rarely at Franklin, in granular masses and disseminated grains in the pegmatite and also intermixed with zinc-ore minerals, as in the Buckwheat open cut.
		A vein of massive chalcopyrite without any other mineral, in coarse limestone, is shown in a specimen in the Holden collection.
		Farrington (54) described a 7-inch vein of chalcopyrite, galena, and sphalerite cutting white limestone very near the zinc-ore body that was uncovered during the early stripping operations on the southeast side of Sterling Hill.
	franklin-sterlinghill.com /palache/chalcopyrite.stm (92 words)

	Bioleaching of Chalcopyrite (Site not responding. Last check: 2007-10-26)
		Chalcopyrite is the most abundant copper sulfide ore, and is currently processed pyrometallurgically.
		In comparison to other sulfide minerals, chalcopyrite leaching, whether chemical or mediated by microorganisms, is slow and incomplete.
		Elevated temperatures and increased levels of acidity were found to promote chalcopyrite dissolution in both abiotic and biotic experiments.
	www.minerals.csiro.au /main/extpages/bmp/bmp21.htm (531 words)

	Highbeam Encyclopedia - Search Results for chalcopyrite
		chalcopyrite (copper pyrites) Opaque, brass-coloured, copper iron sulphide (CuFeS 2); the most important copper ore. It is found in sulphide veins and in igneous and contact metamorphic rocks.
		Chalcopyrite is of primary origin and occurs in igneous and metamorphic rocks and in...
		Reddish copper occurs native (free or uncombined) and in several ores including cuprite (an oxide) and chalcopyrite (a sulphide).
	www.encyclopedia.com /SearchResults.aspx?Q=chalcopyrite (548 words)

	Chalcopyrite Information about the mineral specimen, gem or Crystal
		Chalcopyrite looks like, and is easily confused with Pyrite and is also one of the minerals referred to as "Fool's Gold" because of its bright golden color.
		Chalcopyrite is a common mineral and is found in almost all sulfide deposits and is often disseminated through igneous rocks.
		Chalcopyrite is often tarnished in brilliant iridescent hues.
	www.minerals-n-more.com /Chalcopyrite_Info.html (509 words)

	CHALCOPYRITE in West Virginia coals (Site not responding. Last check: 2007-10-26)
		In this SEM photomicrograph of the Stockton coal from Boone County WV, kaolinite, chalcopyrite, galena and sphalerite fill cavities in semifusinite.
		Chalcopyrite and galena both grew within a single 30 µm opening (dots at the bottom of the photograph are each 10 µm apart).
		Chalcopyrite was observed in moderate amounts in 18 of 24 coal samples examined with the SEM in an unpublished study by the WVGES.
	www.wvgs.wvnet.edu /www/datastat/te/chalcopyrite.htm (280 words)

	BANGLAPEDIA: Chalcopyrite (Site not responding. Last check: 2007-10-26)
		Chalcopyrite ore mineral of copper; crystallises in the tetragonal crystal system, but crystals are generally small with diphenoidal faces resembling the tetrahedron; usually massive with a metallic lustre and brass or golden-yellow colour; shows greenish-fl streaks, uneven fracture and indistinct cleavage; hardness is 3.5-4 on Moh's scale and specific gravity is 4.1-4.3.
		Chalcopyrite is also known as copper pyrite or yellow pyrite.
		However, chalcopyrite is not very stable as it has low hardness as compared to other heavy minerals and as such it is extremely rare in heavy mineral suites of various vertical sections of the Chittagong, Chittagong Hill Tracts and surma basin of Bangladesh and assam and tripura states of India.
	banglapedia.org /HT/C_0102.HTM (137 words)

	SME--VIRTUAL ATLAS OF OPAQUE AND ORE MINERALS
		Chalcopyrite, bornite, cassiterite, chalcocite and stannite group mineral.
		Chalcopyrite, pyrite, stannite group mineral, arsenopyrite and covelline.
		Chalcopyrite, pyrite, chrome-rich spinel, magnetite, altered pentlandite and violarite.
	www.smenet.org /opaque-ore/IX_id_21.htm (146 words)

	Representative Petrographic Reports
		Chalcopyrite forms irregular replacement patches up to 1.5 mm in size replacing groundmass and plagioclase phenocrysts.
		Quartz veinlets with trace calcite and chalcopyrite (with thin rim of hematite).
		The border of the vein is dominated by dolomite with patches of pyrite, lesser tetrahedrite, and minor chalcopyrite.
	www.vanpetro.com /representative_petrographic_reports.htm (1253 words)

	chalcalwebpg1 (Site not responding. Last check: 2007-10-26)
		Chalcopyrite is a mineral with a brass yellow color, it almost looks like pyrite, but it tarnishes to a bronze color.
		Chalcopyrite has a Miller Index of the form [111] and the crystal system is tetragonal-scalenohedral.
		Chalcopyrite is a Porphyry Copper Deposit, which gives the origin of the crystal growth.
	www.eas.slu.edu /People/Students/triggvj/chalcalwebpg1.html (369 words)

	Interaction of Amyl Xanthate with Chalcopyrite, Tetrahedrite, and Tennantite at Controlled Potentials. Simulation and ...
		It was produced simultaneously with cuprous xanthate, on chalcopyrite and tetrahedrite, or at potential 100 mV higher than cuprous xanthate formation on tetrahedrite.
		The produced cuprous xanthate was placed close to the mineral interface, and its amount was limited from a submonolayer to a few monolayers, whereas the dixanthogen forms the outermost layer and a very large thickness could be achieved.
		The dixanthogen was observed at the chalcopyrite surface at submonolayer coverages at potentials very close to that calculated from the thermodynamic data for bulk phase, while for tetrahedrite and tennantite dixanthogen was produced at potentials 100 and 40 mV higher, respectively.
	pubs.acs.org /cgi-bin/abstract.cgi/langd5/1996/12/i26/abs/la960568e.html (385 words)

	MFA - CAMEO - Print Page
		Chalcopyrite has brassy yellow crystals with a metallic luster and greenish or purplish iridescence.
		Chalcopyrite is an important source for copper and is mined in Canada (Ontario, Quebec, British Columbia), Chile, Peru, Bolivia, Japan (Ani), England (Cornwall), Germany (Saxony), France (Alsace), Spain (Rio Tinto) and the U.S. (Montana, Arizona, Utah, Tennessee, Missouri, Wisconsin).
		Chalcopyrite owl on a base of quartz crystals.
	www.mfa.org /_CAMEO/FRONTEND/material_print.asp?name=chalcopyrite&type=all (276 words)

	Growth of II-IV-V^sub 2^ Chalcopyrite Nitrides by Molecular Beam Epitaxy Journal of Electronic Materials - Find Articles
		Chalcopyrites are the family of materials having the II-IV-V^sub 2^ or 1-III-VI^sub 2^ stoichiometry, which exhibit strong nonlinear optical properties due to the large electric fields present at the atomic level in this layered material structure.
		Chalcopyrite epitaxial growth represents a significant departure from the traditional approach to semiconductor band-structure engineering, which involves the synthesis of compounds using cations or anions from the same valence group as the parent compound.
		However, for the case of chalcopyrites, one replaces the group III element by alternating group II and group IV elements.
	www.findarticles.com /p/articles/mi_qa3776/is_200510/ai_n15741554 (775 words)

	Chalcopyrite
		Chalcopyrite is the ore of copper found in Tennessee.
		Chalcopyrite was mined both in surface pits and underground.
		Environmental consequences of chalcopyrite mining: The mining of chalcopyrite was devastating for Polk County and the surrounding areas.
	www.nashvillefossils.com /resources/pages/chalcopyrite.html (309 words)

	CHALCOPYRITE (Copper Iron Sulfide)
		Chalcopyrite is one of the minerals refered to as "Fool's Gold" because of its bright golden color.
		As an ore od copper, the yield of chalcopyrite is rather low in terms of atoms per molecule.
		Chalcopyrite is a common mineral and is found in almost all sulfide deposits.
	mineral.galleries.com /minerals/sulfides/chalcopy/chalcopy.htm (221 words)

	Chalcopyrite
		I'm not sure if it's due to the iridescence or the luster of the crystals, but none of the photos captured the true look of these specimens.
		The large crystal in the first two close-ups is 1 cm, and it's a compound crystal.
		However, in person the color is a lot more intense, and the luster on this (and on all of the other specimens) is much better.
	www.kcminerals.com /chalcopyrite.htm (580 words)

	Chalcopyrite (Site not responding. Last check: 2007-10-26)
		These samples of chalcopyrite are displayed in the Smithsonian Museum of Natural History.
		Chalcopyrite is a sulfide mineral of copper and iron with the composition CuFeS
		This sample of chalcopyrite is about 4x10 cm and is from Burgers quarry, Paterson, New Jersey.
	hyperphysics.phy-astr.gsu.edu /hbase/minerals/chalcopyrite.html (55 words)

	Amazon.com: chalcopyrite (Site not responding. Last check: 2007-10-26)
		Analysis of the oxidation of chalcopyrite, chalcocite, galena, pyrrhotite, marcasite, and arsenopyrite (SuDoc I 28.23:9118) by G. Reimers (Unknown Binding - 1987)
		Quantitative microscopic determination of chalcopyrite, chalcocite, bornite, and pyrite in a porphyry ore (Report of investigations / United States Department of the Interior, Bureau of Mines) by Royden Edward Head (Unknown Binding - 1921)
		Distribution of free and unliberated sphalerite, chalcopyrite and gelena in concentrates and tailings from the mill of Brunswick Mining and Smelting Corporation...
	www.amazon.com /s?ie=UTF8&keywords=chalcopyrite&tag=lexico&index=blended&link_code=qs&page=1 (451 words)

	Chalcopyrite (Site not responding. Last check: 2007-10-26)
		Small tetrahedral crystals of Chalcopyrite in a parallel growth over a Sphalerite crystal.
		Note that many of the Chalcopyrite crystal faces are reflecting the light towards the camera indicating that they are in a parallel alignment.
		Chalcopyrite is commonly found as massive as, well as compact and occasionally as reniform masses.
	www.gc.maricopa.edu /earthsci/imagearchive/chalcopyrite.htm (163 words)

	Images of Nature
		Chalcopyrite is a copper mineral which has a color similar to brass.
		Chalcopyrite is mined and is used as an ore of copper.
		chalcopyrite is the most widely occuring copper mineral.
	ion.eas.asu.edu /min04_chlcpyrite/min4_thumb.htm (73 words)

	Chalcopyrite Mineral Data
		Comments: White moncheite with chalcopyrite (orange, blue and violet tarnishing colors) in silicate matrix.
		Comments: Gray long-prismatic crystal of oulankaite with light grayish telargpalite and pale yellowish-white rims of tulameenite in massive yellowish chalcopyrite.
		Warning: this large pop-up is very compute intensive and may not work well with some computers.
	webmineral.com /data/Chalcopyrite.shtml (326 words)

	chalcopyrite — FactMonster.com
		It crystallizes in the tetragonal system but is usually found in the massive form.
		Chalcopyrite is of primary origin and occurs in igneous and metamorphic rocks and in metalliferous veins.
		copper pyrites - copper pyrites: copper pyrites: see chalcopyrite.
	www.factmonster.com /ce6/sci/A0811235.html (134 words)

	Chalcopyrite Page. Quartz 'N' All - High Quality Crystals, Minerals and Fossils
		For an explanation of, and to learn about the geological terms used, please look at the Fact File page.
		For examples of Chalcopyrite that you can view and purchase safely on-line click here to navigate to our C - E page.
		Chalcopyrite, or copper pyrites, is a brassy yellow, metallic mineral.
	www.quartznall.co.uk /learnchalcopyrite.htm (336 words)

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