Sylvanite :: Sylvan (n.) A liquid hydrocarbon obtained together with furfuran (tetrol) by the distillation of pine wood; -- called also methyl tetrol, or methyl furfuran..
Sylvanium :: Sylvanite (n.) A mineral, a telluride of gold and silver, of a steel-gray, silver-white, or brass-yellow color. It often occurs in implanted crystals resembling written characters, and hence is called graphic tellurium..