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Topic: Wulfenite

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	Bob's Rock Shop: Purple Passion
		Wulfenite is a lead molybdate, found in hydrothermal replacement deposits.
		The wulfenite is found in the contact between a layer of quartz and one of fluorite.
		He told us that he had hit a pocket that was longer than his arm, so he felt around for the bottom with a crowbar, but still couldn't feel the end of it.
	www.rockhounds.com /rockshop/passion1.html (1737 words)

	Wulfenite - Wikipedia, the free encyclopedia
		Wulfenite is named for Franz Xavier von Wulfen (1728-1805), an Austrian mineralogist.
		Wulfenite is found in many localities, associated with lead ores.
		His specimens are valued in museums across the world as providing an extensive example of the most exquisite wulfenites in the world.
	en.wikipedia.org /wiki/Wulfenite (202 words)

	Wulfenite
		Wulfenite is for all practical purposes stable in a normal household environment.
		Wulfenite specimens are often very fragile and should be handled with great care, and preferably touched and moved as little as possible.
		Williams, Sidney A. The significance of habit and morphology of Wulfenite.
	www.hedegaard.biz /Mineraler/Wulfenite.html (621 words)

	Mineralogical Record
		The wulfenite displays many colors and also occurs on a wide variety of matrices, such as wulfenite on quartz (clear, smoky, milky and amethyst) and wulfenite on fluorite, calcite or galena.
		These have been determined to be a true epitaxal growth with the c axis of the wulfenite needles aligned with the c axis of the original wulfenite crystal.
		Nearly 50% of the wulfenite specimens found at the mine have acicular crystals which are very elongated pyramids and bipyramids (only a small percentage of the wulfenite formed the more normal short bipyramids).
	www.fluorescents.com /MinRecord.html (3701 words)

	Tungstates (Site not responding. Last check: 2007-10-11)
		Wulfenite, Pb(MoO4, WO4) (Lead Molybdate), is a popular collection mineral because of its strong colours, bright luster and characteristic platy crystal habit.
		Otherwise, the colour of the Wulfenite throughout the specimen is very rich and together with a bright waxy luster gives rise to a very good quality specimen of this mineral.
		Wulfenite is a popular collection mineral because of its strong colours, bright luster and characteristic platy crystals.
	www.wildaboutrocks.com /category15_1.htm (615 words)

	The Allure of Wulfenite (Site not responding. Last check: 2007-10-11)
		Wulfenite is one of the most popular minerals around for many collectors.
		The most common crystal form for wulfenite is thin tabular crystals with a square shape, often modified with a partial pyramid beveling the edges.
		While wulfenite is often transparent, it also occurs frequently in translucent form, as here.
	www.osomin.com /wulfart.htm (783 words)

	Wulfenite (Site not responding. Last check: 2007-10-11)
		Wulfenite is an oxide mineral of lead and molybdenum.
		The butterscotch colored wulfenite crystals are sprinkled with orange crystals of mimetite.
		Impurities of chromium colors the wulfenite with shades of yellow, orange and red.
	hyperphysics.phy-astr.gsu.edu /hbase/minerals/wulfenite.html (90 words)

	Ore's Featured Gemstone: Wulfenite
		Wulfenite is a favorite among collectors because of its vivid colors and unusual crystal symmetry.
		Wulfenite can also be found encrusted on stones, in granular masses and as intergrown crystal plates in the holes and crevices of area aggregates.
		Wulfenite teaches you these are not obstacles nor roadblocks, but merely the mountains and valleys you must travel on your path.
	www.ozarkrockexchange.com /ore_features/2002/wulfenite.shtml (1442 words)

	Wulfenite from Chris Tucker
		Two dipyramidal wulfenite crystals rest on one side of this piece, the largest is 5mm across.
		Bright orange tabular wulfenite crystal 4mm across, there are a number of inner grown and broken crystal present.
		Several complex wulfenite crystals to 3mm are present on both sides of this piece.
	www.christuckerminerals.com /wulfenite.htm (660 words)

	Wulfenite (Site not responding. Last check: 2007-10-11)
		This is a singular tabular crystal of Wulfenite from the Red Cloud Mine.
		BREAKABILITY Wulfenite has three fair to poor directions of cleavage and sub conchoidal to uneven fracture and is brittle.
		OCCURRENCE Wulfenite is a secondary mineral produced in the oxidized zones of lead and molybdenum deposits.
	www.gc.maricopa.edu /earthsci/imagearchive/wulfenite.htm (139 words)

	Information about U.S. FDC: 29¢ Wulfenite (Site not responding. Last check: 2007-10-11)
		Although not as well known, wulfenite is also one of the most beautiful minerals in the world.
		Wulfenite occurs in oxidized zones of lead and molybdenum deposits.
		Occasionally wulfenite is found in elongated pyramidal forms that are nearly opaque.
	www.unicover.com /EA1CAKRN.HTM (420 words)

	Sep 04
		The wulfenite from the Hillsboro area is very nearly stolzite by chemistry (meaning it carries a lot of tungsten), but still qualifies as wulfenite.
		Wulfenite is produced by the oxidation of galena, so areas that show heavy galena presence often show some wulfenite as well (including the Galena King in the Tijeras district), the Carnahan Mine near San Pedro, and the Apache #1 in Petaca (as a rare pegmatite occurrence).
		Wulfenites from the Petaca pegmatite area tends to be yellow and blocky.
	www.agmc.info /sep_04.htm (4894 words)

	Wulfenite (Site not responding. Last check: 2007-10-11)
		Wulfenite is a secondary mineral formed in the oxydation zones of lead and molybdenum ores.
		Wulfenite is of only minor importance as a lead or molybdenum ore, being more valued as a mineral.
		The specimen in the picture shows the smaller of two large, nicely-formed crystals of wulfenite on a bed of calcite.
	www.kgg.org.uk /wulfeniteh.html (90 words)

	CG2a
		Wulfenite from the Ahumada mine, Los Lamentos, Chihuahua Mexico.
		Both sides of the piece are covered with highly lustrous caramel-colored blocky wulfenite crystals up to 1 cm.
		An 8.5 x 8.5 x 3 cm plate of yellow bladed wulfenite crystals averaging 8m.
	www.mts.net /~enthusia/CG2.htm (364 words)

	Trinity Mineral Co - The Munich 2000 Show
		I was told by Jordi Fabre that the finest wulfenite in the world comes from Iran - even better than the material seen from the Red Cloud mine in Arizona.
		There are also abundant crystals of wulfenite and blebs of mimetite scattered about the surface of this interestin rock.
		There are a few scattered cyrstals of wulfenite to 2 mm on the rock as well.
	www.trinityminerals.com /ms2000/iran.shtml (877 words)

	Wulfenite: Wulfenite mineral information and data.
		Twins on [001], common but rarely seen due to the typical {001} morphology.
		Wulfenite - {110}, {001}, {00-1}, overgrown with small pyramidal crystals
		You may need to scroll this box using your mouse to view the full instructions.
	www.mindat.org /min-4322.html (487 words)

	LookSmart - Directory - Guides to Wulfenite (Site not responding. Last check: 2007-10-11)
		Discover the location where the mineral known as wulfenite is found, and view the crystal system, and the formula.
		Examine a profile that provides the classification data for a mineral known as wulfenite, the physical and chemical properties, the crystallography, and optical data.
		Scan data provided on wulfenite, including the mineral composition, the chemical and empirical formula, crystallography data, and the physical and optical properties.
	www.calbearssearch.com /p/browse/us1/us317914/us263953/us330812/us553452/us10180864/us10178783/us10178776 (287 words)

	WULFENITE (Lead Molybdate)
		Wulfenite is a nice collection type mineral and is popular as such.
		Wulfenite is an enigma in terms of its symmetry.
		There are conflicting results of various symmetry tests and this usually does not happen.
	mineral.galleries.com /minerals/sulfates/wulfenit/wulfenit.htm (270 words)

	Rocks & Minerals: Stolzite: Ste.-Lucie Mine, Ste.-Leger de Peyre Lozere, France (Site not responding. Last check: 2007-10-11)
		Although wulfenite (PbM[O.sub.4]) is acknowledged by virtually everyone as one of the premier collectible minerals, its rarer isostructural sibling stolzite (PbW[O.sub.4]) is far less known despite its many interesting occurrences.
		True, there is no stolzite equivalent of wulfenite's Red Cloud mine, yet attractive, somewhat wulfenite-like stolzite specimens have been found at a number of localities.
		Like wulfenite, it exhibits a wide variation in color, ranging from red through various shades of reddish-brown and orange to yellows and tans, various shades of gray, and even green.
	www.findarticles.com /p/articles/mi_m0GDX/is_6_79/ai_n6338981 (1189 words)

	Trinity Mineral Co - The Munich 2000 Show
		These are all specimens of wulfenite from Touissit, near Oujda, Morocco.
		3.2 x 2.7 cm specimen of dolomite with crystals of wulfenite to 1 cm across.
		4 x 3 cm specimen of dolomite with crystals of wulfenite to 0.8 cm across.
	www.trinityminerals.com /ms2000/wulf.shtml (230 words)

	Fine Minerals - Arkenstone
		By woirldwide standards, this wulfenite isn't the top tier, but as a combination it IS one of the world's premier mineral combos and one that any major Tsumeb collection needs to have represented.
		This is one of the few larger Tsumeb wulfenites that I have ever really fallen in love with, because of the size and quality of the dominant crystal, which is exceptional for Tsumeb, and its dramatic display qualities.
		All in all, I think this one a relative bargain and a good enough wulfenite even by worldwide standards that it will impress those who generally haven't owned a Tsumeb wulfenite before, as good ones are so uncommon.
	www.tsumebfineminerals.com /sussman9.html (577 words)

	Wulfenite (Site not responding. Last check: 2007-10-11)
		I just got in about 100 flats of wulfenite from the San Fransisco mine in Mexico.
		However, a quick look with a UV A (368nm only - not the 352 nm) lamp shows that about 15 of the flat have wulfenite that fluoresces weakly.
		Wulf1H and I show the fluorescent willemite under SW and the weak fluorescence of the wulfenite under LW (368nm).
	www.fluorescents.com /wulfenite.html (173 words)

	Astrology & Gemstones, Birthstones: Wulfenite Gemstone - Gems shop online
		Wulfenite is named after F. Wulfen, an Australian mineralogist.Wulfenite is an enigma in terms of its symmetry.
		The lead molybdate mineral wulfenite is a minor ore of lead and molybdenum that occurs in the oxidized zone of lead deposits.It is a minor source of molybdenum and is found in the oxidized portion of lead veins with other secondary lead minerals.
		The brittle nature of wulfenite makes it very difficult to cut.
	www.findyourfate.com /gemology/gemstones/Wulfenite.html (173 words)

	Douglass Minerals - USA Gallery - Page 3
		A thin, transparent and gemmy wulfenite crystal 1.5 cm across on matrix.
		Several beautiful, damage-free blades of wulfenite (largest 12 x 15 mm) on a bright-orange matrix of mimetite.
		Transparent, gemmy wulfenite blades (the largest 11 x 13 mm has zoning) on a barite matrix with a few sprinkles of orange mimetite.
	www.douglassminerals.com /asp/gallery.asp?name=USA&page=3 (133 words)

	Stone Reference: Wulfenite (Site not responding. Last check: 2007-10-11)
		Because of the thin nature of the crystals, sizes rarely exceed 3 carats, although some large Namibian wulfenites have been cut up to 99 carats.
		Arizona and Mexico are the sources producing the bulk of the material.
		Coupled with the low hardness, wulfenite is unsuitable for use in jewelry.
	www.rarestone.com /rareref.nsf/f25f5e4c2b222b4c85256a2700698957/2e1653216e7c5dcf85256ad20061f390!OpenDocument (94 words)

	Untitled Document
		Of special interest to micromounters is the perfection of crystal forms and the variety of forms present on these secondary lead minerals.
		Wulfenite is encountered in such an array of habits as to allow the serious micromounter the opportunity to collect a complete suite of possible wulfenite habits.
		Most wulfenite from Loudville is tabular in habit, but it can also be observed in steep pyramidal and elongated habits as well as several others.
	www.treasuremountainmining.com /tmmtable1.htm (248 words)

	Wulfenite crystal from Mexico (Site not responding. Last check: 2007-10-11)
		Wulfenite is lead molybdate, PbMoO4, a soft mineral (Mohs' hardness 3.0) that forms colorless to deep reddish-orange blade-shaped crystals.
		Both Mexico and the the United States (Arizona) have metal mines that produce beautiful wulfenite crystals as a byproduct.
		It takes the form of a thin blade with a fine druse of flattened wulfenite crystals on the lower portion.
	www.mtlilygems.com /Minerals/M280.html (109 words)

	Rocks & Minerals: Tales from MEXICO Part 2 (Site not responding. Last check: 2007-10-11)
		The source of the wulfenite was a rat hole overhead in the stope that climbed at about a 45-degree angle.
		I couldn't look at it until i got to the foot of the ladder: then I saw that it was a specimen about 4 x 4 inches, covered with 2-inch transparent lemon-yellow wulfenite blades, with pale orange mimetite balls.
		Arriving at the mine, which was seemingly abandoned, we searched the tunnels, scaled the various ladders from level to level, and found much evidence of formerly rich wulfenite pockets and seams.
	www.findarticles.com /p/articles/mi_m0GDX/is_2_74/ai_57512340 (1561 words)

	Wulfenite
		As you can see the color of the mineral can vary from yellow-orange to green.
		Wulfenite is a secondary mineral that is formed in the oxidized zone (arid zone) of ore deposits containing minerals of lead and molybdenum.
		Wulfenite was name after FX Wulffen (1728-1805) the Austrian mineralogist.
	www.capecodrocks.com /wulfenite.htm (73 words)

	Holabird Americana Auction #23 Archive (Site not responding. Last check: 2007-10-11)
		The spectacular bright orange-red wulfenites from this mine are world famous and most collectors would agree that Red Cloud wulfenite crystals represent the finest examples of the species ever found.
		Although wulfenite specimens originating from the Red Cloud were known from the first period of mining, 1880 to 1889, it was not until the historic discovery by the “legendary” Ed Over in 1938 that the notoriety of the locality leaped to fame.
		A lustrous, bright reddish orange wulfenite crystal measuring 1.6 cm across is perched attractively at the top of a matrix rock covered with microcrystals of vanadinite and wulfenite.
	www.holabird.org /americana2002/archive/Auction23/MineralsthruNA.html (8852 words)

	Collector's Edge Mineral Company - Mineral Mining Project Information (Site not responding. Last check: 2007-10-11)
		Collectors were now fully aware of the exceptional specimen potential of the Red Cloud mine, and large numbers of people began to visit the locality in search of pieces similar to those of Ed Over's discoveries.
		A superb miniature-sized wulfenite matrix specimen recovered by the Collector's Edge in the 2001 mining season. Photo by J. Scovil.
		Progress of removing waste rock to deepen the open-cut. The wulfenite bearing Red Cloud vein is clearly illustrated as a smooth, 45 degree dipping, dark colored surface at the back of the open cut.
	www.collectorsedge.com /projects/mine.cfm?mine=rcm&nav=coll_efforts (222 words)

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