Copper Wire on Prehnite, Osceola Mine, Lake Superior Copper District, Houghton County, Michigan Miniature 2.5 x 3.5 x 4.5 cm $25 SOLD
Coiled copper wire on light green prehnite on basalt matrix. The Osceola Lode is one of the premier locations for rare copper wires. Excellent condition. Eric Petersen Collection.