Argyrodite is one of the rarest collectible silver species to obtain in a good display specimen. I buy every one I come across, which is about 10 pieces in the last 20 years...not too common! Argyrodite is an extremely rare GERMANIUM-containing silver sulfide and occurs at its best from this type locality (late 1800s) and from Bolivia as well (same era, into the early 1900s). Year of Discovery: 1886 at this, the type locality. This particular specimen is actually "beautiful" as far as they go, because it has some 3-dimensionality and can be displayed to show dramatically the clusters of 3-4 mm Argyrodite crystals atop. They rest on a matrix of pyrite and silver ore. very fine display miniature! From the miniature rarities suite of Lawrence Conklin