Pyrite on Quartz (excellent) Trimingham Coll.

Item Description

Mineral specimens from the less well-known Kelley Mine at Butte are rare and are seldom on the market. Highly modified pyrite octahedrons with bright luster and bronzy/brazzy color are richly and attractively scattered on the upright matrix covered with water-clear quartz points. Choice and rare old-time material from Butte. Ex Bob Trimingham Collection.