Octahedral Pyrite and milky Quartz in a classic combination from Butte. Additional dark sulphides are present but the main feature here is the lustrous Pyrites and elongated Quartz. In excellent condition which is rare in Butte pieces. Butte is one of the worlds greatest mining zones of the 19th and early 20th century. Good specimens are surprisingly rare, this is a nice one ex Les Hitchings collection.