A fine, sculptural, large cabinet sheet of native copper from the White Pine Mine of Michigan. This striking piece looks like a large piece of tree bark with a nice coppery patina. The remaining shale is as an excellent accent. Native copper was deposited in shale beds of the Nonesuch Shale, explaining the sheet-like form. The White Pine was the last major copper mine to close in the historic Copper Country. Ex. Consie Prince dealer stock, obtained over 30 years ago.