- Copper, Quartz, Epidote
- Thumbnail, 2.8 x 1.5 x 1.5 cm
- Phoenix Mine, Keweenaw County, Michigan, USA
- Ex. Marilyn Dodge
Superlative Copper from one of the world's great localities. The Copper is very well-crystallized, led by a sharp euhedral 1 cm, HOLLOW, crystal. These crystals are intergrown with numerous quality quartz crystals. This is a great thumb!