Native Copper Green They form inside hard concretions

They form inside hard concretions found along river beds in Russia

The sides and back have been left in their natural state

This incredible Agate Geode slice comes from Brazil

it looks like a school of fish is about to swim off of this fossil

approximately 160 million years ago

Native Copper Green They form inside hard concretionsA wild specimen of Native Copper from the Upper Peninsula of Michigan. Copper found in this region is mined in its natural state as "native copper" or as "float" copper which was moved and tumbled by glacial activities thousands of years ago. Copper is one of the few elements on our periodic table which is able to crystallize in its native form!