D defs.my
Entry 1 sense Webster, 1913

Sylvanite

· Syl·van·ite · IPA
01 n. A telluride of gold and silver, (Au, Ag)Te2, of a steel gray, silver white, or brass yellow. It often occurs in implanted crystals resembli…
  1. 1.
    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.(Min.) Also: graphic tellurium