Michigan Copper-Rich Ore with Silver (Cu7.20)
- Successfully sourced from a rock quarry in Michigan's Upper Peninsula
- Contains a rare mineral combination of copper, datolite, silver
- Polished portions of the face to a mirror-like shine
- Coated with a high-grade non-yellowing lacquer to prevent oxidation
- Sourced: Keweenaw Peninsula, Michigan USA
- Minerals: Copper, Datolite, Silver, Ore
- Size: 4.5" x 2" x 5.5"