Definition of sylvanite
: a mineral (Au,Ag)Te2 consisting of a gold silver telluride, having a steel gray, silver white, or brass yellow color, and often occurring in implanted crystals resembling written characters (hardness 1.5–2 specific gravity 7.9–8.3) —called also graphic tellurium
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Origin and Etymology of sylvanite
French sylvanite, from sylvane sylvanite (from Transylvania, its locality) + -ite
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