A very rich specimen of the rare Silver Sulphogermanate, from the Colquechaca mining area in Bolivia. The Argyrodite forms as rounded interconnected areas covered in a druse of crystals. Cavities are also lined with a druse of Argyrodite crystals on the reverse of the specimen. The colour is from a metallic grey-black, some with a yellowish patina. A matrix of Calcite hosts the crystal mass of Argyrodite with a part crystal of Baryte. A rich specimen from the location