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Topic: Galena (mineral)

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Galena

Cuprite

Sphalerite

Chalcopyrite

Mineral

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Calcite

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List of minerals

Galena, Ohio

	GALENA (Lead Sulfide)
		Galena is a common and popular mineral for rock hounds.
		The structure of Galena is identical to that of halite, NaCl.
		Galena is a natural semiconductor and so the forerunner, the enabler, of all the electronic gadgets we have today, from telephones to TVs to GPS navigating systems as well as all sorts of medical equipment -- in short, modern life as we know it.”
	mineral.galleries.com /minerals/sulfides/galena/galena.htm (333 words)

	Galena Mineral -- Recommendations and Resources (Site not responding. Last check: )
		Galena is one of the most abundant and widely distributed sulfide minerals, and is the most common ore of lead.
		Galena is located at 64°44'26" North, 156°53'8" West (64.740643, -156.885462).
		Galena is located on the north bank of the Yukon River, 72 km (45 miles) east of Nulato.
	www.becomingapediatrician.com /health/61/galena-mineral.html (1991 words)

	galena.htm
		The galena survives weathering to occur as large residual masses in the regolith or in clay-filled joints and pits.
		MARATHON COUNTY: Falster (1987) reports galena as tiny cubes in quartz in the pegmatites of the Wausau pluton such as is exposed in the "rotten granite" quarries south of Rib Mountain.
		ROCK COUNTY: Galena is found with sphalerite and marcasite in a quarry and drill core from the center of Sec.
	www.uwrf.edu /~wc01/galena.htm (3286 words)

	Galena Mineral,Galena Mineral Information,Galena Mineral Uses,Galena Mineral Properties
		Galena in its chemically purified form is known as lead sulfide.
		Sometimes galena deposits also contained significant amount of silver as an impurity and it was then the most important ore of silver in mining.
		Galena group is composed of minerals with similar isometric structure and related chemistry.
	www.mineralszone.com /minerals/galena.html (250 words)

	[No title]
		Minerals reported from the mine by Sabina include galena, chrysocolla, malachite, chalcocite, chalcopyrite, cerussite, quartz (smoky, rose), feldspar, and chalcedony.
		Finally, a blue mineral, common on the dumps, is assumed to be the reported azurite.
		The galena from the deposit is argentiferous, and when the mine was operating, a small amount of silver was extracted from the galena.
	www.chez.com /mineralzine/pages/info2-b.htm (1381 words)

	Galena (Site not responding. Last check: )
		Galena is found in cavities and brecciated (fractured) zones in limestone and chert, as in the extensive Mississippi River valley deposits, where 90 percent of the U.S. production of lead is mined.
		Galena forms isometric crystals in which the ionic lattice is like that of sodium chloride.
		The mineral is often weathered to secondary lead minerals, the upper part of galena deposits often containing cerussite, anglesite, and pyromorphite.
	geology.csupomona.edu /alert/mineral/galena.htm (209 words)

	Rockhoundblog.com
		Galena is one of the most abundant and widely distributed sulfide minerals, and is the most common ore of lead.
		Galena deposits sometimes contain significant amounts of silver as an impurity, and these galenas have long been the most important ore of silver in mining.
		Galena is the official state mineral of Missouri and Wisconsin, USA.
	rockhoundblog.com /?p=127 (213 words)

	Fossils, Rocks, Minerals Illinois (Site not responding. Last check: )
		The individual minerals in it are so small that they cannot be seen without the use of a microscope.
		Galena, or lead sulfide, is the mineral from which lead is obtained.
		Galena is used in batteries, plumbing, electrical connections and mixed with tin in solder.
	dnr.state.il.us /lands/education/kids/KIDSCONS/Fall2000/rockminfos.htm (802 words)

	Galena/Lead
		Galena is the main ore of lead and silver.
		Galena is found combined with zinc, copper, and silver.
		Galena is found in igneous and sedimentary rocks.
	library.thinkquest.org /05aug/00461/galena.htm (317 words)

	galena - Search Results - MSN Encarta
		Galena (mineral), a mineral consisting of lead sulfide (PbS).
		Galena (city, Illinois), city, seat of Jo Daviess County, northwestern Illinois, on the Galena River; incorporated 1835.
		- primary ore of lead: a lustrous blue-gray crystalline mineral consisting of lead sulfide.
	ca.encarta.msn.com /galena.html (60 words)

	Mineral Resources in Missouri
		Galena is among one of the most popular minerals for anyone to have.
		The name galena comes from the Latin word "galena" which means lead ore. The color of this mineral is dark gray to silver.
		This mineral is found in southeastern Missouri and is usually found in large boulders, discontinuous and irregular lenses or beds.
	www.emporia.edu /earthsci/amber/go336/dreyer (1970 words)

	Galena (mineral) - Search Results - MSN Encarta
		Mineral Deposit, concentrated, natural occurrence of one or more minerals.
		Mineral deposits can form within any kind of rock and consist of any type...
		Mineral (chemistry), in general, any naturally occurring chemical element or compound, but in mineralogy and geology, chemical elements and...
	encarta.msn.com /Galena_(mineral).html (129 words)

	The mineral galena
		Galena containing bismuth may exhibit octahedral cleavage, and silver in Galena may cause a specimen to exhibit flaky, slightly bent cleavage fragments.
		Galena is by far the greatest ore of lead.
		Because of this, silver-rich Galena is commonly an ore of silver.
	www.egyptian.net /~grafton/rockcoll/group5/galena.htm (662 words)

	Bob's Rock Shop: Cubic Galena Crystal with Marcasite (Site not responding. Last check: )
		Galena is a widely distributed and very common mineral which is the most important ore of the elemental metal lead.
		Galena is a typical hydrothermal mineral of medium temperature deposits which is also found in sedimentary and metamorphic deposits.
		In hydrothermal veins it is commonly associated with bournonite, chalcopyrite, pyrite, sphalerite and tetrahedrite and with the gangue minerals barite, calcite, dolomite, fluorite and quartz.
	www.rockhounds.com /rockshop/galenaw.html (332 words)

	Wisconsin State Fossil, Mineral, and Rock (Site not responding. Last check: )
		The proposal to make galena (lead sulfide) the state mineral was introduced by the Kenosha Gem and Mineral Society to promote geologic awareness.
		Galena was chosen for its abundance, uniqueness, economic value, historical significance, and native nature.
		The Wisconsin state rock is red granite, an igneous rock composed of quartz (white-light gray mineral) and feldspar (pinkish mineral).
	www.geology.wisc.edu /library/state.html (161 words)

	ISGS - Galena, zinc, fluorspar mining in Illinois
		Answer: Yes, galena was mined in large tonnage's in northwestern Illinois in the vicinity of the town of Galena until 1973 when the last mine closed.
		Galena was also mined in far southeastern Illinois in the vicinity of Rosiclare, where it was also the primary ore mineral in the middle 1800's.
		However, galena and especially Sphalerite continued to be important byproduct minerals until the last fluorite mine in the Illinois-Kentucky fluorspar mining district closed in 1995.
	www.isgs.uiuc.edu /faq/gg-faqs/GGQ18.html (327 words)

	Office of the Secretary of State, Missouri -
		On July 21, 1967, the mineral galena was adopted as the official mineral of Missouri.
		Galena is the major source of lead ore, and the recognition of this mineral by the state legislature was to emphasize Missouri's status as the nation's top producer of lead.
		Galena is dark gray in color and breaks into small cubes.
	www.sos.mo.gov /symbols/symbols.asp?symbol=mineral (92 words)

	Amateur Geologist: Rock and Mineral Collections
		GRANITE is a medium to coarse-grained rock derived from magma and is composed primarily of the minerals quartz and alkali feldspar.
		Minerals are naturally occurring chemical compounds or elements found in the earth's crust and are the building blocks of rocks.
		Other minerals are sometimes substituted in the scale such as topaz for beryl since they both have a hardness of 8.
	www.amateurgeologist.com /shop/education_rockmineralcollections.html (2690 words)

	mineral properties (Site not responding. Last check: )
		Most minerals will vary in their color due to different amounts of trace elements, for example not all specimens of quartz are clear.
		Rubbing the mineral across a white streak plate shows what color the mineral’s streak is. Several minerals have a streak that is not the same color as the mineral itself, for example the mineral hematite is usually fl but it’s streak is red!
		The hardness of a mineral depends on the composition and crystal structure of the mineral, for example graphite (pencil lead) and diamonds are made of exactly the same material, carbon.
	www.epcc.edu /faculty/joshuav/mineral_properties.html (494 words)

	Mineral 3 Choice - Galena (Site not responding. Last check: )
		Galena, although important in the state, is not the State Mineral of Illinois.
		The mineral galena is found in the northwestern portion of the state, notably near the town of Galena, the county seat of Jo Daviess County.
		Galena (lead sulfide) is a very dense, soft, gray-colored ore of lead.
	www.museum.state.il.us /exhibits/symbols/mineral3.html (59 words)

	Mineral Information, Photos
		A mineral is a naturally occuring, homogeneous, solid with a crystalline atomic structure.
		Crystallinity implies that a mineral has a definite and limited range of composition, and that the composition is expressible as a chemical formula.
		Some definitions of minerals give them as inorganic materials, however both diamonds and graphite are considered minerals, and both are primarily comprised of carbon, which would make them organic.
	www.mine-engineer.com /mining/mineral/mineralindx.htm (232 words)

	SuccessLink
		Galena is a sulfur compound of lead and has the chemical formula of PbS.
		Galena, a dark grey metallic lead-sulfite mineral, is the chief ore of the metal known as lead.
		The mineral galena, because it is a compound where the lead is bound with sulfur, it is a safe mineral to handle.
	successlink.org /gti/gti_lesson.asp?lid=3904 (1264 words)

	Galena (Site not responding. Last check: )
		Galena is the natural mineral form of lead sulfide.
		Galena is one of the most abundant and widely distributed sulfide minerals.
		It is often associated with the minerals sphalerite, calcite and fluorite.
	www.buzznet.com /tags/galena (109 words)

	RockZ NewZ, Winter 2003: Galena, Petrified Wood, Collecting Micrometeorites
		Today, the United States is the world's leading producer of lead, and galena (the primary ore of lead and silver) has been mined here in huge quantities since the 19th century, when the need for extensive plumbing arose from the influx of people to cities.
		Galena has been such an important mineral for miners that they have named other minerals based on their resemblance.
		Galena is, by far, the heaviest mineral that most of us will ever have the opportunity to hold a large chunk of.
	www.mamasminerals.com /issuewin2003.html (1652 words)

	The Mineralogical Record - Label Archive
		During his 40 years in the mineral business a wealth of fabulous specimens, countless tons, were saved from the crusher to enrich collections and museums around the world.
		Once the miners learned of what he was doing, they began bringing in minerals to trade for fruit drinks, and the business blossomed.
		Good specimens of sphalerite ("ruby jack" and "fl jack"), galena, pink dolomite, chalcopyrite, marcasite, and calcite as well as such uncommon minerals as wurtzite, enargite, and hemimorphite ("calamine") could all be purchased very inexpensively.
	www.minrec.org /labels.asp?colid=565 (795 words)

	Historical Mineral Prospecting
		Humans found that the hardness and cohesiveness of quartz was valuable in toolmaking and the brilliant colors of minerals, such as hematite, were useful in cave paintings.
		Thus, quartz was the first mineral of choice as an adaptation to the environment and the beginnings of mineral prospecting.
		Galena sources are numerous in places such as the Appalachian region and northeastern Oklahoma.
	www.emporia.edu /earthsci/amber/go336/wilson/newmin.html (1405 words)

	Galena: Minfax (Site not responding. Last check: )
		Galena, lead sulphide, is the primary ore of lead and has been worked since Babylonian times.
		Galena most often originates from hot fluids and is deposited in mineral-rich veins, where it is commonly associated with sphalerite (zinc sulphide).
		Due to the orderly arrangement of lead and sulphur atoms in galena, the mineral has perfect cubic cleavage; when shattered it breaks into cubes.
	www.minersoc.org /pages/education/dragons_cave/galena/galena.html (81 words)

	Lead (Galena) Facts
		Lead is a naturally occurring metallic element usually associated with other ore minerals (primarily those of zinc, silver and copper) such as pyrite, sphalerite, quartz, and barite.
		Galena is lead sulfide with a hardness of 2.5 on the Moh's scale - actually quite soft - but it is VERY heavy with a specific gravity of 7.4 to 7.6.
		To accomplish that, the ore is smelted in a blast furnace with limestone and coke (a "cooked" coal) to remove impurities.
	www.rocksandminerals.com /lead.htm (632 words)

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