Keweenaw Copper


Copper is widely distributed in the oxidized zones of many sulfide copper deposits where it may be accompanied by cuprite, malachite, azurite, tenorite and limonite. It also occurs in sedimentary rocks and cavities in volcanic rocks. Copper may psuedomorphically replace other minerals such as malachite, cuprite, azurite and chalcopyrite.

Stuart provides the following remarks:

"Copper from the mines of Michigan are one of my favorite minerals. This piece is quite sculptural and well crystallized. I think most would agree that Michigan Coppers are the finest known for their species."

Rocks from Stuart Wilensky's Collection

Index of Specimen Images

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