Chalcopyrite on Pyrite (ex Brian Kosnar Collection)

Item Description

The Alice mine is one of the most classic of all the Colorado localities for Chalcopyrite. It is renowned for its superb Chalcopyrite specimens, exhibiting some of the finest twins for the species extant. The Chalcopyrite from this mine are a staple of any good Colorado mineral collection. This specimen features good sized (3.2 cm), sharp, metallic, brassy-gold colored crystal of Chalcopyrite sitting on cubic golden Pyrite matrix. The piece is not 100% complete, as it is contacted on the back, but still displays well from the front. These specimens are almost impossible to obtain these days, and are regarded among Colorado collectors as some of the best from the state.