Copper in Calcite, Pewabic Lode attr., Quincy Mine attr., Lake Superior Copper District, Houghton County, Michigan, ex. Louis Lafayette Collection, Thumbnail, 2.0 x 3.0 x 3.0cm, $150. Online July 20.
Highly aesthetic calcite with localized bright native copper inclusions on matrix. One of the most difficult calcite forms to find in undamaged condition. A great thumbnail.