- Small Cabinet, 8.3 x 6.4 x 1.4 cm
- Central Mine, Keweenaw County, Michigan, USA
- Ex. Ernest Schlichter
Three, parallel growth crystals of copper, to 6 cm in length grew in a narrow vein slightly over 1 cm wide. The crystals exhibit a bright red patina, due to a coating of cuprite. Extremely rich and colorful!