Copper xls with Prehnite (old and rare) Whitmore Coll.

Item Description

Stacked, sharp, tetrahexahedral crystals with a nice patina form a showy and sculptural specimen from the famous mines of Houghton County. The sharp crystal cluster at the top is particularly noteworthy and makes the specimen, along with the rarely seen clusters of pastel-green prehnite. Rare and excellent, old-time combination material from this noted locale. Ex Robert Whitmore Collection.