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A pale brass-yellow to silver-white ore of gold and silver, chiefly (Au,Ag)Te2.
[French, after Transylvania.]
(Minerals) a silver-white mineral consisting of a telluride of gold and silver in the form of elongated striated crystals: a source of gold in Australia and North America. Formula: (Au,Ag)Te2
[C18: from (Tran)sylvan(ia) + -ite1, with reference to the region where it was first found]
a silvery-yellowish ore mineral, gold silver telluride, (AuAg)Te4.
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|Noun||1.||sylvanite - a silver-white mineral consisting of silver gold telluride; a source of gold in Australia and America|
atomic number 79, Au, gold - a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia
atomic number 52, Te, tellurium - a brittle silver-white metalloid element that is related to selenium and sulfur; it is used in alloys and as a semiconductor; occurs mainly as tellurides in ores of copper and nickel and silver and gold
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition