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Topic: Tennantite

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	Tennantite and Pyrite
		Tennantite, (Cu,Fe)12AS4S13, (Copper Iron Arsenic Sulfide), is a relatively uncommon sulfosalt.
		In this form it is known as Tetrahedrite.
		A crystalline diorite matrix liberally studded with crystals of Tennantite.
	www.wildaboutrocks.com /prod1084.htm (126 words)

	TENNANTITE Chapter 21. Sulfides, arsenides, antimonides, and sulfosalts
		Tennantite was first found at Sterling Hill by Lawson Bauer and confirmed by Palache (1928a, 1935).
		Tennantite is a copper iron arsenic sulfide mineral.
		Tennantite also was found intimately associated with bornite and loellingite on the 1300 level and with bornite, chalcopyrite, galena, and sphalerite on the 800 level.
	simplethinking.com /dunn/ch21/tennantite.stm (297 words)

	David McMillan (Site not responding. Last check: 2007-10-12)
		Tennantite from the USZ varies systematically in chemical composition with stratigraphic elevation.
		Vertical chemical zoning, reflected in the substitution of copper and zinc for iron, and antimony and bismuth for arsenic, occurs in all mineralized intervals.
		Observations that proximal tennantite is relatively Sb-, and (Zn+Fe)-rich, whereas distal tennantite is enriched in As and Cu, support this model.
	www.mines.utah.edu /~wmep/Petersenvit/students/mcmillan.html (598 words)

	Diamanten und Edelsteine Frank Breinling Edelsteinvertrieb (Site not responding. Last check: 2007-10-12)
		Tennantite is generally darker, has a redder streak and a translucent red color that can be seen in thin splinters when they are held up to a strong light.
		Tennantite is in an informal group of minerals called the "fahlerz" or "fahlores" group.
		Often tennantite will contain a certain percentage of silver and be used as a minor ore. Collectors usually crave nice specimens of verified tennantite.
	www.breinling.de /sulphides/tennantite.htm (451 words)

	TENNANTITE (Copper Arsenic Sulfide)
		Tennantite is generally darker, has a redder streak and a translucent red color that can be seen in thin splinters when they are held up to a strong light.
		Tennantite is in an informal group of minerals called the "fahlerz" or "fahlores" group.
		Often tennantite will contain a certain percentage of silver and be used as a minor ore. Collectors usually crave nice specimens of verified tennantite.
	mineral.galleries.com /minerals/sulfides/tennanti/tennanti.htm (457 words)

	HotBot Web Search for Tennantite
		Tennantite forms a series with the much more common mineral tetrahedrite (Cu12Sb4S13, Copper Antimony Sulfide).
		Apatite from Tennantite occurrence, Eselberg Mt., Altenberg an der...
		Apatite from Tennantite occurrence, Eselberg Mt., Altenberg an der Rax, Neuberg an der Mürz, Styria, Austria...
	www.hotbot.com /default.asp?query=Tennantite (195 words)

	Tennantite
		A narrow open vein found in 1927 on the 900-foot level of the mine at Sterling Hill contained a few crystals of tennantite, intimately intergrown with sphalerite and galena.
		Bauer determined the mineral as tennantite rather than tetrahedrite.
		Crystal of tennantite, showing the forms d (110), o (111), and n (211) Sterling Hill.
	simplethinking.com /palache/tennantite.stm (81 words)

	THE SELECTIVE EXTRACTION OF AS IN SELECTED MINERAL AND SOIL SAMPLES
		The four minerals (arsenopyrite, scorodite, tennantite and conichalcite) used for the kinetic study were crushed and sieved through a minus 80-mesh sieve.
		The weight of minerals (arsenopyrite, scorodite, tennantite and conichalcite) added to 100g of matrix used to prepare mineralised samples (doped samples), is calculated in such a way that there are about 500 ppm As in scorodite and arsenopyrite and 300 ppm As in conichalcite and tennantite.
		A kinetic study of the selectivity of partial chemical extractions applied to minerals of arsenic was undertaken in order to establish a procedure (reagents, time of extraction, etc), which could be recommended for soils and tailings of the Talhadas and Preguiça old mines.
	www.aeg.org /abstracts/portugal1.htm (490 words)

	Fahlerz and Arsenic-bearing (Site not responding. Last check: 2007-10-12)
		Preliminary evidence from the ongoing archaeological excavations at Ross Island indicates that both tennantite- and arsenopyrite-bearing ores from Western Mine and perhaps some fine-grained, banded, chalcopyrite-pyrite ± sphalerite ± galena ores from Blue Hole were exploited in the Early Bronze Age as copper ores.
		Tennantite and trace amounts of enargite-bearing copper ores at the Ross Island site are part of a discontinuous zone of mineralisation stretching south-eastwards from Ross Island (Western Mine and Blue Hole) to Crow Island to Muckross Mine and beyond.
		The sulphides vary from yellow-coloured chalcopyrite-pyrite with minor galena and sphalerite and trace amounts of arsenopyrite (FeAsS) and tennantite to finely banded, dark grey-fl- coloured ores comprising sphalerite (ZnS) and galena (PbS) with lesser amounts of pyrite, chalcopyrite and trace amounts of arsenopyrite and tennantite.
	www.rosiehardman.com /fahlerz.htm (7235 words)

	LookSmart - Directory - Guides to Tennantite (Site not responding. Last check: 2007-10-12)
		Drawing of the tennantite crystals accompanies a description of the mineral, details of the occurrence and paragenesis, and a summary of the composition.
		Chart of the local mineral occurrence of tennantite is provided, as well as the origin of the name, and the physical characteristics.
		Exhibits a specimen of tennantite and tells about its chemistry, where the mineral is found, color, density, hardness, habit, and the luster.
	lsxml.looksmart.com /p/browse/us1/us317914/us263953/us330812/us553452/us10214946/us10179351/us10179301 (278 words)

	Fine Minerals - Arkenstone
		A sharp, complete-all-around, cluster of several intergrown and twinned tennantite crystals, featuring a very high degree of sharpness for this size of crystal.
		Erik Louw was a miner on the dioptase stope who traded extensively and accumulated one of the finest Tsumeb miniatures collections, purchased in entirety by the Sussmans in the late 1990's.
		The tennantite is perched at the tip of a thin plate of massive tennatite matrix coated with dolomite crystals...
	www.tsumebfineminerals.com /sussman6.html (923 words)

	Mineralogical Record: Crystal chemistry of minerals from the Sweet Home mine (Site not responding. Last check: 2007-10-12)
		Electron microprobe analyses for 28 elements were completed on 468 crystals of barite, bornite, chalcopyrite, dickite, digenite, dolomite, fluorapatite, fluorite, galena, hubnerite, illite, jalpaite, muscovite, pyrite, quartz, rhodochrosite, sphalerite, stromeyerite, tennantite, tetrahedrite, topaz and triplite.
		The intrinsic value of microprobe analyses to the mineralogist lies in the ability of the instrument to produce quantitative chemical analyses of spots that are as small as 2 microns.
		An average of IS atomic % of the copper in the tennantite/ tetrahedrite structure is replaced by Zn.
	www.findarticles.com /p/articles/mi_qa3672/is_199807/ai_n8802326 (1388 words)

	Lehigh Black Mineral Page
		Tennantites to 1.5 x 1.5 x.3 cm from the find in December 1999 - $140.00
		Tennantite crystals to 1.5 x 1.5 x.3 cm from the find in December 1999 - $865.00
		Largest crystal is 1.8 x 1 x.3 cm and has a blue and purple patina.
	www.lehighminerals.net /Peru100plus1.htm (399 words)

	Mössbauer study of Fe-bearing synthetic tennantite (Site not responding. Last check: 2007-10-12)
		Abstract : The valence of iron in synthetic Fe-bearing tennantite was investigated by the Mössbauer method.
		Tennantite compositions were weighed out in the reference system Cu As
		The tennantite compositions obtained were characterized by electron-microprobe analysis and powder-diffraction data.
	pubs.nrc-cnrc.gc.ca /mineral/tcm-112541-5.html (280 words)

	tetrahedrite.htm (Site not responding. Last check: 2007-10-12)
		Description: Tetrahedrite forms a solid solution series with tennantite and freibergite in moderate to low temperature hydrothermal deposits.
		Tennantite on chalcopyrite, Flambeau Mine, Iron County, WI.
		It is associated with pyrite, chalcopyrite and gold tellurides.
	wwwpp.uwrf.edu /~wc01/tetrahedrite.htm (147 words)

	Interaction of Amyl Xanthate with Chalcopyrite, Tetrahedrite, and Tennantite at Controlled Potentials. Simulation and ...
		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.
		The adsorption kinetics of two kinds of surface species were investigated.
		Selective flotation separation of these three minerals on the basis of differences in optimal adsorption conditions of amyl xanthate (selective changes in mineral hydrophobicity) could be improved.
	pubs.acs.org /cgi-bin/abstract.cgi/langd5/1996/12/i26/abs/la960568e.html (385 words)

	Tennantite Gallery (Site not responding. Last check: 2007-10-12)
		A druzy quartz matrix is studded with brownish almost skeletal bournite and a single complex lustrous crystal of tennantite to 1.6cm.
		Attached to the tennantite is a bornite crystal which has undergone a slight decomposition and is covered in green copper salts.There is a slight "nick" on the tennantite.
		Crude fl tennantite crystals to 15 mm with white dolomite crystals to 13 mm.
	www.mindat.org /gallery.php?min=3911 (401 words)

	tennantite - OneLook Dictionary Search
		Tip: Click on the first link on a line below to go directly to a page where "tennantite" is defined.
		Tennantite : Online Plain Text English Dictionary [ home, info ]
		Tennantite : AllWords.com Multi-Lingual Dictionary [ home, info ]
	public.onelook.com /?loc=rescb&w=tennantite (158 words)

	XPS Characterization of Chalcopyrite, Tetrahedrite, and Tennantite Surface Products after Different Conditioning. 2. ...
		Tetrahedrite shows the fastest kinetics of xanthate adsorption with the formation of multilayer coverage of surface cuprous xanthate.
		On chalcopyrite and tennantite the adsorbed amount of xanthate is much lower, close to a monolayer coverage.
		The differences in the surface composition of these three minerals are governed mainly by a different mobility of copper atoms in their crystalline structures in the presence of xanthate in solution.
	pubs.acs.org /cgi-bin/abstract.cgi/langd5/1996/12/i10/abs/la950589t.html (338 words)

	Tennantite Mineral Data
		Comments: Crystals of dark gray tennantite on white quartz.
		Comments: Bright white silky fibrous schaurteite on dark tennantite.
		Gray, inclining to fl to brown to cherry-red.
	webmineral.com /data/Tennantite.shtml (283 words)

	SME--VIRTUAL ATLAS OF OPAQUE AND ORE MINERALS (Site not responding. Last check: 2007-10-12)
		Bravoite and tetrahedrite-tennantite show compositional zoning as reflectance and surface colour variations.
		Tetrahedrite is associated with chalcopyrite, whereas tennantite is intergrown with galena.
		Galena carries fine-grained tennantite, pearceite, polybasite, acanthite and pyrargyrite inclusions; many of these lie along growth zones in galena.
	www.smenet.org /opaque-ore/ix_d35_4.htm (131 words)

	Tennantite
		This is the definition of the term Tennantite
		Tennantite (n.) A flish lead-gray mineral, closely related to tetrahedrite.
		For people who have trouble spelling, this is the defintion of the term Tennantite
	linkspider.serversystems.net /dictionary/lookup/tennantite (86 words)

	Mineral Classics - The Leigh Price Collection
		More than likely, the crystals on this specimen are not pure Tennantite, or perhaps not Tennantite at all, but rather an intermediate mixture of the series end members Tennantite and Tetrahedrite.
		It has been my experience that the majority of these specimens when analyzed will produce results leading to Tennantite, so that's what species I chose to label them as I had no analysis performed on these pieces.
		Sometimes, these crystals are actually epitaxial overgrowths of Tennantite/Tetrahedrite over Chalcopyrite, or at least a sign that Chalcopyrite once existed, but since there is no Chalcopyrite visible on the specimens they are labeled Tennantite/Tetrahedrite.
	www.minclassics.com /leighprice.html (848 words)

	IngentaConnect In Situ Infrared Characterization...te, Tetrahedrite, and Tennantite (Site not responding. Last check: 2007-10-12)
		The assignment of the band at about 1220 cm -1 is temporary, and it is proposed to be due to the surface iron complex, probably Fe(OH)X 2.
		In the cases of tetrahedrite and tennantite, the cuprous xanthate complex is observed in submonolayer and multilayer quantities.
		You will be able to remove this item from your shopping cart at any time before you have completed check-out.
	www.ingentaconnect.com /content/ap/cs/1996/00000178/00000002/art00172 (398 words)

	Tennantite Mineral Data
		Comments: Vein of blue calcioandyrobertsite in massive dark gray tennantite.
		Warning: this large pop-up is very compute intensive and may not work well with some computers.
		Disseminated - Occurs in small, distinct particles dispersed in matrix.
	www.webmineral.com /data/Tennantite.shtml (294 words)

	Definition of tennantite - Merriam-Webster Online Dictionary
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		Find more about "tennantite " instantly with Live Search
		See a map of "tennantite " in the Visual Thesaurus
	www.m-w.com /dictionary/tennantite (41 words)

	Tennantite - Art History Online Reference and Guide (Site not responding. Last check: 2007-10-12)
		Tennantite - Art History Online Reference and Guide
		It is found in hydrothermal veins and contact metamorphic deposits.
		The two have very similiar properties and is often difficult to distinguish between tennantite and tetrahedrite.
	www.arthistoryclub.com /art_history/Tennantite (83 words)

	Compositional variation in mercurian tetrahedrite-tennantite from the epithermal deposits of the Steens and Pueblo ...
		from 12 of the deposits reveals complete substitution between the tetrahedrite and tennantite end-members with extensive substitution of Hg (up to 21.3 wt.%) and, in one deposit, silver (up to 49.7 wt.
		The Hg content is negatively correlated to the both the Fe and, especially, the Zn content, and positively but weakly correlated to the Sb content.
		provenant de douze gisements avec une microsonde électronique révèle une substitution complète entre les pôles tétraédrite et tennantite, avec incorporation importante de mercure (jusqu'à 21.3% en poids) et d'argent (jusqu'à 49.7% dans un gisement).
	pubs.nrc-cnrc.gc.ca /mineral/tcm-81939-3.html (506 words)

	mineral general info (Site not responding. Last check: 2007-10-12)
		plates of drusy quartz littered with 3-7mm nice crystals of oriented overgrowths of tennantite and tetrahedrite on chalcopyrite and sphalerite associated with galena.
		A nice article by John White was written for MR V3, #3 in 1972.
		clearly shows how the powder x-ray diffraction patterns of the two end members (Tennantite and Tetrahedrite) are shown on the same film.
	labs.sci.qut.edu.au /minerals/mineral%20photos/T/tennantitecp.htm (124 words)

	Glossary of terms used in the study ancient metal-working A
		A name, meaning grey or 'pale ore' is applied to ores in which the tennantite - tetrahedrite minerals are the principal component.
		The series copper-rich mineralisation with arsenic (Tennantite) and antimony (Tetrahedrite) end members.
		The mineral series may also contain additional elements such as silver, nickel, bismuth, cobalt.
	users.ox.ac.uk /~salter2/glossary/glos-f.html (3137 words)

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