Sylvanite

2 definitions found

From 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.]

From WordNet (r) 2.0 [wn]:

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