$200.00 €163 £140.00 approx. This specimen is priced in US dollars, all other prices are approximate.
A rich heavy small cabinet crystal specimen of lustrous black-brown Cassiterite with embedded bladed crystals of metallic silvery-grey Bismuthinite measuring to around 3cm. A specimen from the Siglo Veinte Mine, Llalagua, Bolivia. With an old (1968) Institut Rostock label.