Tags: Chemical Substance, Mineral.
Argyrodite is an uncommon silver germanium sulfide mineral with formula Ag8GeS6. The color is iron-black with a purplish tinge and the lustre metallic.Discovered by Clemens Winkler in 1886 it is of interest as it was described shortly after the element germanium was isolated 15 years after it had been postulated by Mendeleev.