Cassiterite with Quartz (ex Brian Kosnar Collection)

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 piece features several, sharp, lustrous, somewhat gemmy, brown and black color, cyclic twinned Cassiterite crystals measuring up to 2.1 cm associated sitting atop gemmy Quartz crystals. This specimen was mined about 30 years ago when Viloco was really pumping out specimens! This is a very attractive piece and one of the better ones for quality, luster and crystal size that I've seen in recent years. The piece is in great shape, and most crystals are virtually damage free. A great overall display piece. This classic material from Viloco is simply not seen for sale in today's market. Valued at $1750.