Superb and uncommon Acanthite specimen with Polybasite and Pyrite from Casapalca, Peru. It comes from the collection of R and W Rossel, Berlin, Germany with a label. Displays very attractive structure with some skeletal features of lustrous irregular Acanthite crystals. Sparkling yellow Pyrite crystals grow around. On the label is marked Polybasite too. Complete all over 360 degree. In superb condition. On acrylic base., Marvelous!