Isle Royale Mines, Protage Charter Twp., Houghton Co., Michigan

12.7 x 10.3 x 6.6 cm

Sold

Ex. Paul Egslaer

A relative large piece of modified, greenish gray colored Basalt with three vugs filled with Quartz crystals and native Copper. The Quartz crystals are milky with a few containing inclusions of green colored Chlorite. The Copper has a rich, iridescent patina and has surfaces showing cast patterns likely after Calcite. An unusual specimen for the Copper country.

Condition: Good

Flaws: A few of the Quartz crystals are incomplete.

This mineral is also found in the following galleries: Minerals From Michigan | Copper | Quartz | Phyllosilicates | Minerals Priced Between 100 and 199 Dollars