Michigan Float Copper (Cu9.75)
- This semi-polished specimen of float copper was carried by glaciers during the last ice age, which ended some 12,000 years ago.
- It was then deposited in its end moraine & subsequently unearthed by metal detecting (on private land with mineral rights).
- Polished portions of the face to a mirror-like shine
- Applied high-grade lacquer to polished portions to prevent oxidation
- Covered with cuprite, a red copper oxide, malachite, a green copper carbonite, and silver a secondary mineral
- Sourced: Keweenaw Peninsula, Michigan USA
- Minerals: Copper, Float
- 4" x 3'5" x 9"