Cassiterite (lustrous cyclic twins)

Item Description

Bolivia has probably produced more tin than any other country in the world. The great tin mines at Viloco (sometimes called Araca) have produced some of the most magnificent Cassiterite specimens extant. This particular specimen consists of a few fine, sharp, rather lustrous, black cyclic twinned crystals forming an aesthetic display piece. The largest twin measures 2.5 cm across. It is a very nice display piece of this material. These classic specimens from Viloco are simply not seen for sale in today's market very often.