- Small Cabinet, 8.6 x 4.6 x 0.7 cm
- Central Mine, Keweenaw County, Michigan, USA
- Ex. Ernest Schlichter
A classic example of a branching or dendritic copper specimen, with crystals to 3 cm in length, this piece has a dark reddish-brown color thanks to a coating or patina of cuprite. A superb copper fan with a very nicely developed old patina!