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Topic: Crocoite

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	Wholesale Crocoite from Toprock Gemstones and Minerals
		Crocoite was discovered in the 18th century in mines at Sverdlovsk in the central Ural mountains of Russia.
		Crocoite is very soft and is not used for jewellery as it is too easily damaged.
		Crocoite is a member of the rare and brightly coloured group of minerals and gemstones known as chromates.
	www.toprocks.info /crystalsandminerals/crocoite.htm (408 words)

	Crocoite - LoveToKnow 1911
		It is found as well-developed crystals of a bright hyacinth-red colour, which are translucent and have an adamantine to vitreous lustre.
		Associated with crocoite at Berezovsk are the closely allied minerals phoenicochroite and vauquelinite.
		The former is a basic lead chromate, Pb3Cr209, and the latter a lead and copper phosphate-chromate, 2 (Pb, Cu) CrO 4.
	www.1911encyclopedia.org /Crocoite (303 words)

	Information about the mineral specimen, gem or Crystal Crocoite
		Crocoite is an unusual and beautiful redish-orange mineral specimen, that fascinates collectors.
		Crocoite is a rather unusual lead mineral, that was first found in Russia and later in other European localities.
		Crocoite was found in Sverdlovsk, Ural Mountains, Russia; Callenberg, Saxony, Germany; Nontron, France; Labo, Philippines; and Congonhas de Campo, Brazil.
	www.minerals-n-more.com /Crocoite_Info.html (545 words)

	Mineral Emblem proclamation
		Crocoite which is composed of lead, chromium and oxygen has a minor value as an ore of lead or chromium but is highly valued in its natural state for the beauty, orange red colour and shape of its needle like crystals.
		Although crocoite was fast discovered near Beresov, in the Ural Mountains in Russia, in 1763, and has since been found in a number of other locations, it is in Tasmania that the largest, best quality and most abundant specimens are found.
		Crocoite crystals have been mined at Dundas for over a 100 years and the field still supplies most of the world's demand for this exquisite mineral.
	www.parliament.tas.gov.au /tpl/InfoSheets/MineralProclamation.htm (341 words)

	Crocoite - Wikipedia, the free encyclopedia
		Crocoite is a mineral consisting of lead chromate, PbCrO
		It was discovered at Berezovsk near Ekaterinburg in the Urals in 1766; and named crocoise by F.
		It is found as well-developed crystals of a bright hyacinth-red color, which are translucent and have an adamantine to vitreous lustre.
	en.wikipedia.org /wiki/Crocoite (341 words)

	Dartmouth Toxic Metal Research - Toxic Metals!
		The second, a mineral called crocoite, is unusual in appearance but extremely rare.
		Crocoite, also known as lead chromate, was discovered by a geologist in 1765 at the Beresof mine near Ekaterinburg, Siberia.
		This mineral was more plentiful than crocoite and the greater availability of chromium facilitated innovation and discovery in a wide range of industries.
	www.dartmouth.edu /~toxmetal/TXSHcr.shtml (3504 words)

	Crocoite, rock, crystal, mineral, gem stone, birth stones - mineralgallery
		Crocoite's high density and luster are due to the
		It's aggregates are composed of bars and splinters, producing a character and quality that is distinctive of Crocoite.
		This makes Crocoite a highly sought after by mineral collectors, due to its attractive color.
	www.mineralgallery.co.za /crocoite.htm (159 words)

	CROCOITE (Lead Chromate)
		Crocoite provides a nice color to the mineral kingdom and is well known for its distinctive orange-red color.
		Crocoite's high density and luster are the result of its lead content.
		Some crocoite aggregates are composed of bars and splinters, of differing sizes, going in a dozen different directions and produces a certain character to these specimens that is distinctive of crocoite.
	mineral.galleries.com /minerals/sulfates/crocoite/crocoite.htm (262 words)

	Chromate minerals from Berezovskoye deposit, Ural Mountains, Russia Mineralogical Record - Find Articles
		This deposit is the type locality for five of the known 22 chromate species (cassedanneite, crocoite, embreyite, phoenicochroite, and vauquelinite).
		Crocoite was the first of the chromate species to be recognized, by J. Lehman in 1766.
		The crystals were described as four-sided prisms of bright yellow-orange color with a saffron streak, associated with cerussite and pyromorphite.
	www.findarticles.com /p/articles/mi_qa3672/is_200101/ai_n8929982 (586 words)

	History of the Red Lead Mine
		It remains one of the few mines in the district mined for crocoite specimens.
		Mention was made in the Zeehan & Dundas Herald in 1894 of the spectacular display of crocoite evident in the roof of the main adit.
		Judging by the specimens recently found in the upper levels of the stope, where crystals to 10cm are not uncommon, there must have been large quantities of crocoite sent to the smelters.
	members.ozemail.com.au /~shanesrocks/history.htm (558 words)

	Crocoite (Site not responding. Last check: 2007-11-06)
		Crocoite is a compound of lead and chromium (lead chromate) with composition PbCrO
		From their description "Crocoite's color, always orange or reddish-orange, comes from chromium - a valuable metal first extracted from this rare mineral.
		The best crocoite in the world is found in Tasmania where it was once mined for lead."
	hyperphysics.phy-astr.gsu.edu /hbase/Minerals/crocoite.html (79 words)

	Trinity Mineral Co - The Munich 2000 Show
		One of the pleasant surprises at the show was the presence of these fine specimens of crocoite from the type locality in Russia.
		The majority of the crocoite crystals are terminated on this specimen and the crystals reach to 1 cm in length.
		The largest crocoite crystals are 1.8 cm in length.
	www.trinityminerals.com /ms2000/russia.shtml (579 words)

	The Adelaide Crocoite Mine
		Crocoite was discovered in Tasmania about 1896, by James Smith and W.R. Bell.
		In search of lead and silver, the brown/fl gossan overburden they discovered, was honeycombed with cavities containing cerussite and a strange beautiful red mineral, later identified as crocoite, the rare chromate of lead.
		Our visit is in the summer months and the thought of working this mine in cold, wet and extremely muddy conditions in the middle of winter made me realise that those prices we pay for specimens aren't really that bad at all when one realises the effort required to extract them.
	www.mineral.org.au /news/crocoitemine.html (1207 words)

	Albert Chapman Mineral Collection - Crocoite
		It is made of lead, chromium and oxygen.
		Crocoite is mainly of interest to collectors because of its rarity.
		Crocoite is a source of chromium and lead.
	www.amonline.net.au /chapman/records/50683.htm (27 words)

	Collectors: Museum Piece - Crocoite (22/09/2005)
		Dundas in Tasmania is world famous for Crocoite specimens.
		People came across it in the early years in lead mines in small caverns that were tapped into by accident.
		Forty years later his collection of newspapers now exceeds 20,000 and his collecting obsession is driven by his desire to have a newspaper detailing every major event that has occurred during his lifetime.
	www.abc.net.au /tv/collectors/txt/s1470810.htm (176 words)

	Crocoite (Site not responding. Last check: 2007-11-06)
		Crocoite is a secondary mineral occurring in lead-rich deposits that also contain chromium bearing veins.
		It is often associated with other lead minerals such as anglesite, pyromorphite and cerussite.
		The best known location for Crocoite is Dundas in Tasmania.
	www.kgg.org.uk /crocoiteh.html (87 words)

	AMCSD Search Results
		A three-dimensional refinement of the structure of crocoite, PbCrO4
		A high temperature structural phase transition in crocoite (PbCrO4) at 1068 K: crystal structure refinement at 1073 K and thermal expansion tensor determination at 1000 K
		Multiple datasets can be concatenated into a single downloadable file by selecting the datasets and then hitting the "Process Selected Data" button.
	rruff.geo.arizona.edu /AMS/result.php?mineral=Crocoite (67 words)

	Crocoite Dundas \| Mineralium.com - Fine Mineral Specimens
		The crocoite is the mineralogical landmark of Tasmania.
		Attractive larger miniature specimen with beautiful small Crocoite crystals, nicely scattered on a matrix of a limonitic quartz rock, coated partly with fl manganese oxide.
		Attractive miniature specimen with beautiful small Crocoite crystals, nicely scattered on a matrix of a limonitic quartz rock, coated partly with fl manganese oxide.
	www.mineralium.com /index.php?lang=ENG&list=KRD2 (544 words)

	Alan Guisewite's Mineral Collection Images: Lead Minerals Page (Site not responding. Last check: 2007-11-06)
		caledonite, carminite, cechite, cerussite (and a cerussite-mimetite-malachite combo), cesarolite, cotunnite, creaseyite, crocoite, cylindrite
		Tiny (but bright!) crocoites share the quartz matrix with tiny pyrites in this beautiful miniature combination of colors and crystals, almost certainly from the Beresov District, near Ekaterinburg (Sverdlovsk), Ural Mountains, Russia.
		This miniature of brilliant red crocoite and brown vauquelinite (a lead copper hydroxyphosphatochromate) is from the type locality for both minerals, the Tsvetnoi Mine, Berezovskoye Au Deposit (Berezovsk Mines), Berezovskii, Ekaterinberg, Urals Region, Russia.
	www.cs.cmu.edu /~adg/adg-plimages.html (6242 words)

	DUNDASITE (Hydrated Lead Aluminum Carbonate Hydroxide)
		Dundasite, which is named for the famous mines at Dundas, Tasmania, Australia where it is found, is a rare lead aluminum carbonate mineral.
		It is found with other lead minerals such as cerussite and crocoite.
		Crocoite is probably the most famous mineral from the Dundas mines and has a bright orange to red color.
	mineral.galleries.com /minerals/carbonat/dundasit/dundasit.htm (153 words)

	The mineral crocoite
		Because of its beauty, Crocoite is a mineral that fascinates collectors.
		It was first found in Russia and later in other European localities, but only sparingly, and seldom in attractive examples.
		Dundas, on the island of Tasmania, Australia, is where Crocoite is most abundant, and where the most magnificent crystals were obtained.
	www.minerals.net /mineral/sulfates/crocoite/crocoite.htm (251 words)

	Crocoite Page from Quartz 'N' All - High Quality Crystals, Minerals and Fossils
		Crocoite Page from Quartz 'N' All - High Quality Crystals, Minerals and Fossils
		Below you will find the geological properties and some further information regarding crocoite, a lead ore.
		For an explanation of, and to learn about the geological terms used, please look at the Fact File page.
	www.quartznall.co.uk /learncrocoite.htm (168 words)

	Mineral Specimen for sale of Crocoite from Kapie Mine, Dundas, Tasmania, Australia. (Site not responding. Last check: 2007-11-06)
		This mineral specimen of Crocoite from Kapie Mine, Dundas, Tasmania, Australia is available for sale from John Betts - Fine Minerals, mineral dealer located in New York City, New York.
		The specimen is mounted to an acrylic stand with fl clay.
		The crocoite crystals are lustrous and have good color.
	www.johnbetts-fineminerals.com /jhbnyc/gifs/35467.htm (175 words)

	Crocoite Mineral Data
		Warning: this large pop-up is very compute intensive and may not work well with some computers.
		Quareni S, De Pieri R, Acta Crystallographica, 19 (1965) p.287-289, A three-dimensional refinement of the structure of crocoite, PbCrO4
		Sectile - Curved shavings or scrapings produced by a knife blade, (e.g.
	webmineral.com /data/Crocoite.shtml (242 words)

	My Best Gem minerals.
		Best Crocoite Crystals (a Lead chromate) comes from Dundas - Tasmania, Australia - and good specimens are Quite Rare.
		Crocoite, Cat.# CROCO24, small but solid and noticeable heavy Specimen.
		ovely Crocoite crystals to one end of the rock matrix..
	www.mybestgem.com /minerals.htm (1348 words)

	Spectrum Wellbeing Natural Pieces A to C (Adamite to Crocoite)
		Spectrum Wellbeing Natural Pieces A to C (Adamite to Crocoite)
		Natural Pieces A to C (Adamite to Crocoite)
		Specimen piece of crocoite from Tasmania.; This rare orange mineral is toxic and is not for children. About 50mm x 30mm x 20mm. One piece only.
	www.spectrumwellbeing.co.uk /acatalog/naturalatoc.html (383 words)

	TAMC Crocoite Galleries Page. (Site not responding. Last check: 2007-11-06)
		Crocoite from the Adelaide Mine, Dundas, Tasmania, Australia :
		Crocoite from the Red Lead Mine, Dundas, Tasmania, Australia :
		The following page shows some of the better crocoite specimens we've sold :
	www.theadelaidemine.com /website/Galleries/Crocoite.html (32 words)

	Crocoite (Site not responding. Last check: 2007-11-06)
		These two images of the same specimen are of the Arizona Mineral and Mining Museum specimen number MMT 312.
		CRYSTAL GROWTH AND HABITS - Crystals of Crocoite are most commonly long prismatic.
		COLOR AND OPTICAL PROPERTIES - Color varies from red to deep orange-red, orange and yellow; Transparent to translucent.
	www.gc.maricopa.edu /earthsci/imagearchive/crocoite.htm (109 words)

	crocoite (Site not responding. Last check: 2007-11-06)
		The following are Crocoite specimens from the Red Lead mine, Dundas, Tasmania, Australia.
		To order e-mail item number and brief description of item to: earthenergy85752@aol.com.
		Tangle of crystals, specimen is approximately 9/16 inch X 1/2 inch X 3/8 inch.
	www.earth-energy.com /crocoite.html (145 words)

	Mineral Specimen for sale of Crocoite from Dundas, Tasmania, Australia. (Site not responding. Last check: 2007-11-06)
		Mineral Specimen for sale of Crocoite from Dundas, Tasmania, Australia.
		This mineral specimen of Crocoite from Dundas, Tasmania, Australia is available for sale from John Betts - Fine Minerals, mineral dealer located in New York City, New York.
		Description: Small prismatic crystals of red-orange crocoite on limonite gossan matrix.
	www.johnbetts-fineminerals.com /jhbnyc/gifs/34227.htm (138 words)

	SPI Standards for Microanalysis - Minerals - Crocoite (Site not responding. Last check: 2007-11-06)
		SPI Standards for Microanalysis - Minerals - Crocoite
		This is a reflected light micrograph of polished, carbon coated crocoite crystals.
		The identifying etched label, which is a feature of our standards, is invaluable for navigating in an electron beam instrument.
	www.2spi.com /catalog/standards/spiweb/minerals/crocoite.html (248 words)

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