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Topic: Gold chalcogenides

Related Topics

Calaverite

Gold

Gold halide

Chalcogens

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Group 16 element

Periodic table

Extractive metallurgy

Periodic table series

Group 10 element

Rutherford scattering

Periodic table group

Sulfur

Group 6 element

Group 12 element

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	Gold
		Gold is used as a monetary standard for many nations and is also used in jewelry, dentistry, and in electronics.
		The color of solid gold as well as of the intensely colored, often purple, colloidal solutions that can be made from it is caused by the fact that the plasmon frequency of this element lies in the visible range, which causes red and yellow light to be reflected and blue light to be absorbed.
		Gold is widely distributed, is very often associated with the minerals quartz or pyrite and is combined with tellurium in the minerals petzite, calaverite and sylvanite.
	www.starrepublic.org /encyclopedia/wikipedia/g/go/gold.html (1834 words)

	Gold article - Gold gold (disambiguation) platinum mercury Uuu Full table Name Symbol - What-Means.com (Site not responding. Last check: 2007-10-29)
		The color of solid gold as well as of the intensely colored, often purple, colloidal solutions that can be made from it is caused by the fact that the plasmon frequency of this element lies in the visible range, which causes red and yellow light to be reflected and blue light to be absorbed.
		Historically gold was used to back currency in an economic system known as the gold standard in which one unit of currency was equivalent to a certain amount of gold.
		Gold is widely distributed, is very often associated with the minerals quartz or pyrite and is combined with tellurium in the minerals petzite, calaverite and sylvanite.
	www.what-means.com /encyclopedia/Gold (1872 words)

	Gold chalcogenides - Wikipedia, the free encyclopedia
		Gold chalcogenides are gold compounds with anions from periodic table group 16, known as the chalcogens.
		Gold chalcogenides have stability that is reversed from typical chalcogenides.
		For gold, the tellurides are the most stable, while the sulfide and oxide are metastable.
	en.wikipedia.org /wiki/Gold_chalcogenides (136 words)

	Gold - Wikipedia, the free encyclopedia
		Gold was formerly used as a monetary standard for many nations and is also used in jewelry, dentistry, and in electronics.
		Historically gold was used to back currency in an economic system known as the gold standard in which one unit of currency was equivalent to a certain weight of gold.
		Economic gold extraction can be achieved from ore grades as little as 0.5 g/1000 kg (0.5 ppm) on average in large easily mined deposits, typical ore grades in open-pit mines are 1–5 g/1000 kg (1-5 ppm), ore grades in underground or hard rock mines are usually at least 3 g/1000 kg (3 ppm) on average.
	en.wikipedia.org /wiki/Gold (3395 words)

	Gold (Site not responding. Last check: 2007-10-29)
		Gold is widely distributed in the earth's crust at a background level of 0.03 g/1000 kg (0.03 ppm).
		Gold ore grades may be as little as 0.5 g/1000 kg (0.5 ppm) on average in large easily mined deposits, typical ore grades in open-pit mines are 1 - 5 g/1000 kg (1-5 ppm), ore grades in underground or hard rock mines are usually at least 3 g/1000 kg (3 ppm) on average.
		Gold is extracted from alluvium ores by techniques of placer mining and from hard rock ores by initially crushing and grinding the ore and then by one or more of the following techniques; gravity separation, flotation, cyanidation, amalgamation, chlorination, roasting, bioleaching or pressure oxidation (autoclaving).
	www.gogoglo.com /wiki/en/wikipedia/g/go/gold.html (2410 words)

	Gold chalcogenides: Encyclopedia of chemistry, analytics & pharmaceutics with 64,564 entries. (Site not responding. Last check: 2007-10-29)
		Gold chalcogenides are gold compounds with anions from periodic table group 16, known as the chalcogens.
		Gold chalcogenides have stability that is reversed from typical chalcogenides.
		For gold, the tellurides are the most stable, while the sulfide and oxide are metastable.
	www.chemie.de /lexikon/e/Gold_chalcogenides (147 words)

	Gold album - Encyclopedia Glossary Meaning Explanation Gold album
		The original 'gold record' awards were presented to artists by their own record companies to publicise the achievement of 1,000,000 sales.
		In Australia, gold and platinum albums are certified by the Australian Record Industry Association (ARIA).
		In Canada, gold and platinum albums are certified by the Canadian Recording Industry Association (CRIA).
	www.encyclopedia-glossary.com /en/Gold-album.html (687 words)

	Bambooweb: Gold
		Gold is a chemical element in the periodic table that has the symbol Au (L.
		Colloidal gold (gold nanoparticles) is an intensely colored solution that is currently studied in many labs for medical, biological and other applications.
		Their symbol for gold was the circle with a point at its center (☉), which was also the astrological symbol, the Egyptian hieroglyph and the ancient Chinese character for the Sun (now 日).
	www.bambooweb.com /articles/g/o/Gold.html (1828 words)

	Gold (Site not responding. Last check: 2007-10-29)
		Gold in antiquity was relatively easy to obtain geologically however 75% of all gold ever produced has been extracted since 1910 (see Goldsheet, cumulative gold production).
		Gold is widely distributed in the earth's crust at a background level of 0.03 g/1000 kg (0.03 ppm), hydrothermal ore deposits of gold occur in metamorphic rocks and igneous rocks, alluvial deposits and placer deposits originate from these sources.
		Gold is extracted from alluvium ores by techniques of placer mining and from hard rock ores by initially crushing and grinding the ore and then by one or more of the following techniques; gravity separation, flotation, cyanidation, amalgamation, roasting, bioleaching or pressure oxidation(autoclaving).
	www.yotor.com /wiki/en/go/Gold.htm (2198 words)

	Gold - eCraftsWeb - A place to share your craft ideas and be inspired by others!
		Gold - eCraftsWeb - A place to share your craft ideas and be inspired by others!
		Gold has been used as a symbol for purity, value, royalty, and particularly roles that combine these properties.
		The primary goal of the alchemists was to produce gold from other substances, such as lead; though they were never successful at this attempt, the alchemists promoted an interest in what can be done with substances, and this laid a foundation for today's chemistry.
	www.ecraftsweb.com /arts_crafts/Gold.php (1438 words)

	Gold chalcogenides (Site not responding. Last check: 2007-10-29)
		Gold chalcogenides have stability that is from typical chalcogenides.
		For gold the tellurides the most stable while the sulfide and are metastable.
		No studies of gold polonides have been yet as polonium is very rare in nature.
	www.freeglossary.com /Gold_chalcogenide (410 words)

	Gold chalcogenides (Site not responding. Last check: 2007-10-29)
		Gold chalcogenides are gold compounds with anions from periodic table group 16, known asthe chalcogens.
		For gold, thetellurides are the most stable, while the sulfide and oxide are metastable.
		No studies of gold polonides have been conducted yet, as polonium is very rarein nature.
	www.therfcc.org /gold-chalcogenides-63468.html (123 words)

	Gold (Site not responding. Last check: 2007-10-29)
		Gold is also a good conductor of heat and electricity and isn't affected by air and most reagents.
		It has been estimated that all the gold in the world that has been refined could form a single cube 60 ft. on a side.
		Far from considering my request, he contented himself with replying, wrote to his friends, he avoided telling them of his affairs.'" In May 1793, Da Ponte wrote from London: "Count Waldstein has lived a always in cabarets, cafes, with porters, with rascals, with.
	www.factspider.com /go/gold.html (1355 words)

	Gold (Site not responding. Last check: 2007-10-29)
		Gold Gourmet Edible Gold Leaf gold gourmet kit Use to gild foods such as fruit, nuts and chocolate...
		Surface gold leaf may have a few irregularities and is...
		This Alpine Gold wave design ring is beautifully crafted in 14K white gold, with a brightly polished shank.
	www.byglrb.com /jewelry/Gold&start=10 (1167 words)

	World War 1 and 2 - Chalcogen
		Their compounds, particularly the sulfides, selenides, and tellurides are collectively known as chalcogenides.
		The name is generally considered to mean "ore former" from the Greek chalcos "ore" and -gen "formation".
		The oxidation number of the chalcogen is generally -2 in a chalcogenide but other values (e.g.
	www.worldwardiary.com /history/Chalcogen (178 words)

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