Cassiterite (gemmy twin)

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 features a fine, sharp, lustrous, cyclic-twinned crystal of Cassiterite that is actually a bit gemmy! when backlit. The luster and color are very nice for the material, as you can see a rich golden hue in one area in strong lighting. Keep in mind that despite all of the thousands of tons of tin ore that are mined in Bolivia each year, Viloco is the only mine to produce gem quality crystals that are large enough and fine enough to facet stones. These classic specimens from Viloco are simply not seen for sale in today's market very often, especially with gemmy crystals like this.