A MONSTER plate of native silver from one of the most concentrated areas of silver on earth -the Cobalt Silver mining Camp. This is an oldie. No sign of weathering, since it was probably removed directly from an operating mine in the old days. There is a large lump of arsenide mineralization attached and a rim of arsenide along the bottom. Come with a stand that supports it perfectly for display. Mostly solid silver metal. They don't come around like this very often!
