Description
Caledonia Mine, Ontonagon Co., Mi | Chengmenshan Mine, Jiangxl Prov., China
Sizes range between between 1.5-2 cm.
Native copper from the Caledonia Mine in Michigan’s Copper Country is known for its bright reddish-brown metallic color and natural, irregular shapes. It often forms solid masses or rough crystal shapes within dark volcanic rock. The surface may appear shiny when fresh and can develop a darker or green coating over time. These specimens are valued by collectors because they show copper in its pure, natural metal form and come from one of the most historic copper mining areas in the United States.
Native copper from the Chengmenshan Mine is known for its bright reddish-brown metallic color and shiny surface. It forms in natural masses or well-shaped crystal groups within the mine’s copper-rich deposit. Some pieces may also show small amounts of red cuprite on the surface. These specimens are valued by collectors because they display copper in its pure metal form and come from an important mining area in China.
All items from Ancient Artifacts & Treasures, Inc, carry a lifetime guarantee of authenticity.
