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Topic: Bornite

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	BORNITE (Copper Iron Sulfide)
		The colors are from an iridescent tarnish that forms on bornite upon exposure to air.
		Because bornite is often intergrown with chalcopyrite which tarnishes to more greens and yellows, the peacock ore may have many colors ranging from purple to blue to green to yellow.
		Bornite is only isometric at temperatures above 228 degrees celsius and it was above this temperature that the crystals formed.
	mineral.galleries.com /minerals/sulfides/bornite/bornite.htm (446 words)

	Bornite Minerals,Peacock Ore,Peacock Copper,Bornite Information,Bornite Properties,Bornite Uses
		Bornite is important for its copper content, that is about 63 percent by mass, and is used in copper industries.
		BORNITE IS a sulfide mineral and one of the important copper ore mineral.
		Both the chalcopyrite and bornite are typically replaced by chalcocite and covellite in supergene enrichment zone of copper deposits.
	www.mineralszone.com /minerals/bornite.html (155 words)

	Bornite (Site not responding. Last check: )
		Bornite is a widely occurring copper ore usually found associated with other sulphides (chalcocite, chalcopyrite, pyrite, etc).
		Bornite tends to be known as a massive mineral ore due to the fact that good crystals are rare.
		Bornite is used in the mineral trade as the curiosity and children's favourite "peacock ore".
	oliver.geology.adelaide.edu.au /info/DigiTAL/digitate/minerals/sulphides/bornite/bornite.html (335 words)

	Bornite: Bornite mineral information and data.
		Buckley, A.N. and Woods, R. (1983) An X-ray photoelectron spectroscopic investigation of the tarnishing of bornite.
		Vaughan, D.J., Tossell, J.A., and Stanley, C.J. (1987) The surface properties of bornite.
		Harmer, S.L., Pratt, A.R., Nesbitt, H.W., and Fleet, M.E. (2005) Reconstruction of fracture surfaces on bornite.
	www.mindat.org /min-727.html (693 words)

	Bornite
		Bornite is uncommon Franklin, though some specimens of chalcopyrite seem to contain minute grains of darker-colored bornite.
		The following analysis of a specimen from Franklin proves the presence of bornite mixed with sphalerite.
		Many specimens of this bornite, in part almost pure, were found in the Stanton collection.
	franklin-sterlinghill.com /palache/bornite.stm (116 words)

	bornite.html
		Bornite's peculiar brownish-purple color on a fresh surface is diagnostic, and should be used in identification instead of the iridescence.
		RUSK COUNTY: Bornite is a major component of the supergene enrichment zone at the Flambeau deposit, south of Ladysmith in T.34N R.6W.
		WINNEBAGO COUNTY: Bornite is reportedly found in cavities in dolostone with pyrite, marcasite, sphalerite, galena, covellite and cuprite in the Lutz Quarry, in the west part of Oshkosh along Rte.
	www.uwrf.edu /~W1014120/bornite.htm (389 words)

	bornite, rock, crystal, mineral, gem stone, birth stones - mineralgallery
		A favorite among children, the bornite chunks sold as peacock ore or alternatively peacock copper have a rich bouquet of colors.
		The colors are from an iridescent tarnish that forms on bornite upon exposure to air.
		Because bornite is often intergrown with chalcopyrite which tarnishes to more greens and yellows, the peacock ore may have many colors ranging from purple to blue to green to yellow.
	www.mineralgallery.co.za /bornite.htm (291 words)

	Bornite (Site not responding. Last check: )
		Bornite is an important copper ore (it is both a copper and iron sulfide mineral).
		Upon exposure to moisture, bornite tarnishes to a purplish iridescence, for which reason it is commonly called peacock ore. Hardness is 3, streak pale grayish fl.
		Bornite occurs with chalcopyrite and chalcocite, both more important as ores, in copper deposits that typically form as zones of contact metamorphism (see metamorphic rock) and as sulfide ore veins.
	ist-socrates.berkeley.edu /~eps2/wisc/bornite.html (86 words)

	Olympic Dam Ores (Site not responding. Last check: )
		Grain of bornite (Bo; purple) and chalcocite (Cc; grey) showing an intergrowth that may have formed by chalcocite replacement of bornite, or may have formed by exsolution.
		Bornite (Bo; tan) has formed veins that traverse the martite and occur along the grain boundaries of the martite grains.
		Exsolution intergrowth between bornite (Bo; tan) and copper sulfide (blue to grey) showing smooth boundaries between the two minerals that are typical for such exsolution intergrowth.
	web.umr.edu /~rhagni/olyd.html (759 words)

	Bornite (Site not responding. Last check: )
		Bornite is an important copper ore (it is both a copper and iron sulfide mineral).
		Upon exposure to moisture, bornite tarnishes to a purplish iridescence, for which reason it is commonly called peacock ore. Hardness is 3, streak pale grayish fl.
		Bornite occurs with chalcopyrite and chalcocite, both more important as ores, in copper deposits that typically form as zones of contact metamorphism (see metamorphic rock) and as sulfide ore veins.
	seismo.berkeley.edu /~jill/wisc/bornite.html (86 words)

	Bornite
		Bornite is a sulfide mineral with chemical composition Cu FeS
		Bornite is an important copper ore mineral and occurs widely in porphyry copper deposits along with the more common chalcopyrite.
		Bornite is isometric, has a hardness of 3, a specific gravity of 5.7, a streak of gray-fl, poor cleavage, and is used in industrial copper ores.
	www.buzznet.com /buzzwords/bornite (144 words)

	Alternative Network Directory - Bornite
		Because Bornite is often intergrown with Chalcopyrite, which tarnishes to more greens and yellows, the Peacock Ore may have many colours ranging from purple to blue to green to yellow.
		As a minor ore of copper, Bornite is not a rare stone, but crystals of it are, and are considered to hold significant powers.
		Bornite is a common ore of copper found in high temperature veins with such minerals as pyrite and chalcopyrite, intrusive igneous rocks, pegmatites & contact metamorphic rocks.
	www.and-world.com /content/view/235/0 (343 words)

	Bornite Flotation (Site not responding. Last check: )
		Bornite is in many porphyry copper operations that have a complex mineralogy and its compl
		Bornite can be found in zones where exist copper secondary sulphides and many times near to chalcopyrite forming irregular veins and compact masses.
		Bornite and chalcocite form a continuous solid solution that can be deposited like a simple solid with high temperatures.
	www.startprospecting.com /html/bornite.html (402 words)

	PRESS RELEASE Philex Gold Announces Results of Infill Drill Holes at the Boyongan Property (Site not responding. Last check: )
		Hypogene sulphide mineralisation consists of chalcopyrite, pyrite, rare bornite and trace molybdenite occurring as disseminations, veinlets and quartz-sulphide veinlets.
		Hypogene sulphide mineralisation consists of chalcopyrite, pyrite and minor bornite occurring as disseminations, veinlets and quartz-sulphide veinlets.
		Hypogene sulphide mineralisation consists of chalcopyrite, pyrite and bornite occurring as disseminations, veinlets and quartz-sulphide veinlets.
	www.marketwire.com /mw/release_html_b1?release_id=213100 (1987 words)

	Skarn and Cu-(Au)-rich massive sulfide/specularite carbonate-replacement deposits of the Superior District, AZ -- by ...
		Sulfide-dominant (2-4 mm granular pyrite-chalcopyrite (85:15) ± bornite) bodies occur as coalescing elongate pods (typically 6- 25 m) within a "sea" of specularite-dominant (80- 95% 1-5 mm specularite + 5-10% 2-5 mm pyrite + < 10% chalcopyrite) rock that generally extends to the sharp (< 10 cm wide) contact with wall-rock carbonate.
		NW and NNE- striking, irregular bornite-chalcopyrite and bornite- pyrite replacement veins and bornite-matrix pyrite- bornite- + pyrite-chalcopyrite-fragment breccias are the locus of high-grade Cu-Au ore within the sulfide pods.
		Bornite veins commonly have rhythmically-banded bornite-pyrite or nebulous bornite- chalcopyrite/chalcopyrite-pyrite selvages.
	pangea.stanford.edu /research/ODEX/kurt-gsn.html (667 words)

	Gems and Stones: Bornite
		Bornite also compliments an understanding that there is nothing wrong in any aspect of one's incarnation.
		Bornite is one of the strongest healing stones on the mineral kingdom.
		You would place a piece of Bornite at the crown chakra of the subject during a rebirthing session.
	www.accessnewage.com /articles/stones/bornite.htm (461 words)

	Bornite
		The relation of bornite and chalcocite in the copper ores of the Virginia district of North Carolina and Virginia
		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)
		Draft environmental impact statement for the Bornite Project an underground copper mine (SuDoc A 13.92/2:B 64)
	www.veryhappening.com /things/bornite (102 words)

	Bornite Fact Sheet - The Free Information Society
		Bornite is a strange mineral due to its very colorful nature.
		Bornite is traditionally called "Peacock Ore", which is clearly a reference to its bright blue-green colors.
		Due to its high concentration of copper, bornite is typically found near veins of copper.
	www.freeinfosociety.com /site.php?postnum=621 (250 words)

	Bornite Mineral Data
		Comments: Light grayish grain of intimately intergrown isomertieite and arsenopalladinite (in the center of the picture), with pale yellow gold and brownish to violet bornite.
		Tunell G, Adams C E, American Mineralogist, 34 (1949) p.824-829, On the symmetry and crystal structure of bornite
		Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g.
	webmineral.com /data/Bornite.shtml (238 words)

	McGraw-Hill AccessScience: Bornite (Site not responding. Last check: )
		The metallic and brassy color of a fresh surface rapidly tarnishes upon exposure to air to a characteristic iridescent purple, giving rise to the name "peacock ore." Bornite exhibits considerable solid solution at elevated temperatures.
		Association or intergrowths of bornite with these minerals is common.
		Though of lesser importance as an ore than chalcocite or chalcopyrite, masses of bornite have been mined in Chile, Peru, Bolivia, and Mexico and in the United States in Arizona and Montana.
	www.accessscience.com /Encyclopedia/0/09/Est_091800_frameset.html?doi (185 words)

	Collector's Edge Mineral Company - Mineral Mining Project Information (Site not responding. Last check: )
		Bornite appears to be more prevalent in certain veins of the mine than originally thought.
		Bornite is probably best known from the Tetrahedrite Drift in an area mined during 1993.
		The bornite usually forms as isolated and intergrown subhedral, rounded crystals up to 8 mm across that usually range in color from deep blue to fl.
	www.collectorsedge.com /projects/mine.cfm?mine=shm&nav=minerals (1186 words)

	Farewell To Shungnak
		The only shaft at Bornite now is flooded with water, which had to be pumped at the rate of 25,000 gallons a minute \vhen the shaft was in use.
		Homer and I were finishing lunch in the watchman’s cabin at Bornite Camp when a small grey bird flew by the window and lighted on the snow nearby.
		One strategy NANA used was to surround Bornite Claim with its own land claims, effectively isolating it.
	www.aliciapatterson.org /APF0302/Magdanz/Magdanz.html (2324 words)

	Bornite's Profile - GameSpot
		Posted by Bornite, Feb 27, 2006 4:35 pm PT 3 Comments
		Posted by Bornite, Feb 25, 2006 8:53 am PT 1 Comment
		Posted by Bornite, Feb 20, 2006 7:08 pm PT 1 Comment
	www.gamespot.com /users/Bornite (203 words)

	Bornite and Covellite from Central Wales (Site not responding. Last check: )
		Bornite (L) is a rare supergene sulphide in the Central Wales Orefield.
		Here, it forms a striking flamelike intergrowth with chalcopyrite, set in a matrix of "chalcocite", and is an intermediate product of chalcopyrite to chalcocite conversion.
		Covellite (blue, L) is much commoner than bornite, and occurs wherever the precursor - chalcopyrite - is present.
	www.geologywales.co.uk /borncov.htm (121 words)

	Amazon.com: bornite (Site not responding. Last check: )
		The relation of bornite and chalcocite in the copper ores of the Virginia district of North Carolina and Virginia by Francis Baker Laney (Unknown Binding - 1911)
		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)
		Leaching of bornite with oxygen and ferric chloride as oxidants (A minerals research contract report) by Ferron A Olson (Unknown Binding - 1982)
	www.amazon.com /s?ie=UTF8&keywords=bornite&tag=lexico&index=blended&link_code=qs&page=1 (650 words)

	WHY AZAZEL IS THE 'PEACOCK ANGEL'
		Bornite is often intergrown with chalcopyrite, which tarnishes to more greens and yellows, the peacock ore may have many colors ranging from purple to blue to green to yellow.
		Bornite is also associate with another very important mineral these 'sailors on the seas of fate' would have use for - and that is Magnetite or Lodestone.
		Bornite is only isometric at temperatures above 228 degrees celsius (442 F) and it was above this temperature that the crystals formed.
	www.semjaaza.com /peacock.html (3729 words)

	URANINITE & OTHER RADIOACTIVE MINERALS
		At some localities where Uraninite was found, copper-bearing sulfides were also present in the ore. The mineral Bornite was identified in association with the Uraninite at several of the mines in the Red Canyon and White Canyon Districts in San Juan County in the mid-1950’s to early 1960’s.
		Bornite has a metallic luster, and is dark bronze-blue-fl in color, sometimes with a slightly iridescent tarnish.
		This is because part of the overall volume of the specimen is Bornite, which is not radioactive.
	www.minresco.com /radioactive/radioactive02.htm (1030 words)

	ClubTread Community Forums - Bagging Bornite
		Posted - 10/15/2006 : 1:45:19 PM Mt. Bornite is East of Terrace about 20k and has a well marked road to trailhead at about 3600 ft. The road is deactivated with about 100 waterbars/removed culverts but is quite navigable with a medium duty SUV such as our little Subaru Forester.
		Bornite on the surface would be very rusty and would look like any other rusty substance until you broke it open.
		Fresh bornite is light bronze coloured, but it tarnishes within days to various shades of blue and purple.
	www.clubtread.com /sforum/topic.asp?TOPIC_ID=18875 (1281 words)

	SME--VIRTUAL ATLAS OF OPAQUE AND ORE MINERALS
		Djurleite (white, centre bottom) is intergrown with bornite (pink-brown, centre).
		Djurleite (white) is intergrown with bornite (orange-brown), both in random orientation (left of central grain) and as a crystallographically controlled texture (centre of grain).
		The latter texture is due to the replacement of bornite by djurleite.
	www.smenet.org /opaque-ore/Plate52.htm (428 words)

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