Tags: Chemical Substance, Mineral.
Krennerite is an orthorhombic gold telluride mineral which can contain a relatively small amount of silver in the structure. The formula is AuTe2 varying to (Au0.8Ag0.2)Te2. Both of the chemically similar gold-silver tellurides calaverite and sylvanite are in the monoclinic crystal system whereas krennerite is orthorhombic.The color varies from silver-white to brass-yellow. It has a specific gravity of 8.53 and a hardness of 2.5.
