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sylvanite

针碲金银矿

WordNet (r) 3.0 (2006) (WordNet)

sylvanite
n 1: a silver-white mineral consisting of silver gold telluride;
a source of gold in Australia and America [synonym:
{sylvanite}, {graphic tellurium}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Sylvanite \Syl"van*ite\, n. [Fr. Transylvania, where first
found.] (Min.)
A telluride of gold and silver, {(Au, Ag)Te2}, of a steel
gray, silver white, or brass yellow. It often occurs in
implanted crystals resembling written characters, and hence
is called {graphic tellurium}. H., 1.5-2. Sp.gr., 7.9-8.3.
[Webster 1913 Suppl.]

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Sylvanite - Wikipedia
Sylvanite is associated with native gold, quartz, fluorite, rhodochrosite, pyrite, acanthite, nagyagite, calaverite, krennerite, and other rare telluride minerals It is found most commonly in low temperature hydrothermal vein deposits
Sylvanite: Mineral information, data and localities.
Named in 1835 by Louis Albert Necker-de Saussure for the Transylvania region of Romania, where it was first found, and Sylvanium, one of the names proposed for the newly discovered element tellurium, which it contains ⓘ Baia de Arieș, Alba County, Romania Compare krennerite
Sylvanite — Identification, Properties Facts | Rock Identifier
Sylvanite is a gold-silver telluride ( (Au,Ag)Te2) and an important ore of both metals It is silver-white to steel-gray with a bright metallic luster and is very soft, crystallizing in the monoclinic system, often as bladed or skeletal crystals
Sylvanite | Gold-Silver Alloy, Native Gold Silver - Britannica
sylvanite, a gold and silver telluride mineral [ (Au,Ag)Te 2] in which the ratio of gold to silver atoms is commonly close to 1:1 It is a member of the krennerite group of sulfides and is found associated with them in ore veins formed at low temperatures in Hungary, Australia, Canada, and the western United States
Sylvanite: The mineral sylvanite information and pictures . . .
Detailed description, properties, and locality information guide about the mineral sylvanite
Sylvanite Mineral Information and Facts - Nevada Outback Gems
Sylvanite is silver-white or steel-gray and has a brilliant metallic luster and a yellowish gray streak Sylvanite is more common than calaverite It is an isomorphous mixture of gold and silver tellurides in the ratio of about 1 to 1 It occurs in veins with native gold, quartz, fluorite, dolomite, and various sulfides and other tellurides
Sylvanite: Identification, Properties Lookalikes
Sylvanite is a white to gray mineral It has a hardness of 1 5–2 and a white or no streak

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