sylvanite


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Related to sylvanite: Petzite, Calaverite, Krennerite

syl·van·ite

 (sĭl′və-nīt′)
n.
A pale brass-yellow to silver-white ore of gold and silver, chiefly (Au,Ag)Te2.

[French, after Transylvania.]

sylvanite

(ˈsɪlvəˌnaɪt)
n
(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]

syl•van•ite

(ˈsɪl vəˌnaɪt)

n.
a silvery-yellowish ore mineral, gold silver telluride, (AuAg)Te4.
[1790–1800; after Transylvania; see -ite1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.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
References in periodicals archive ?
Sylvanite Gold Sylvanite Gold Mines Mine-Mill Local Mines Ltd.
It has yielded interesting specimens of crystalline gold, sylvanite, krennerite and native tellurium.
Ltd, Murray-Kay Ltd, Premier Gold Mining Co Ltd, Sylvanite Gold Mines, Toburn Gold Mines Ltd and Tough Oats Burnside Gold Mines Ltd.
prepared a 22-yr mine plan with a 65% recovery of the 180M mt mineable reserve of sylvanite. The mill is expected to have a 90% recovery, producing potash grading 60.3% [K.sub.2]O.
The Teck-Hughes ore conveyor used to pass over the road into town proudly bearing the slogan, "WELCOME TO KIRKLAND LAKE - ON THE MILE OF GOLD." The conveyor and the mine are gone now, along with Lake Shore Mine, Wright-Hargreaves, Sylvanite, Toburn, Tough-Oakes, and most of the gold.
The mine was originally conceived for the extraction of sylvanite and carnallite, but the working of these has now been suspended and kainite is the only mineral being extracted at present.
Although the drawers were full of eons of accumulated dust, a good "blow" might well reveal a classic fair-sized hand specimen of Sacaramb sylvanite (the "graphic tellurium" variety looking rather like Hindi script).
There are several tellurides, (sylvanite, petzite, krennerite, hessite, and calverite), all of which are alloys of gold, silver, and tellurium.
In "the cave of sparkling jewels" sylvanite and calaverite crystals studded the walls, interspersed with thumbnail-size leaves of gold.
At the end of the tour we come to a locality which has been known for some decades, though never well known, in the West: the Emperor gold mine, Vatukoula, Viti Levu, Fiji Islands, from which have occasionally emerged some of the world's finest crystals of native tellurium and of the rare Au-Ag telluride sylvanite. In the Clarion room of Luis Burillo (see above under barite), about ten miniature specimens were laid out inconspicuously, showing very fine sylvanite from this exotic source: brilliant metallic white microcrystals of sylvanite glitter on open seams in dense gray rock matrix.