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5“ and weighs 31
creating impressive masses like this one
72" and weighs 101 grams
including the United States
This item is 12” x 7” and weighs 40
Native Copper | Michigan Mineral 5“ and weighs 31This slab of native copper comes from Michigans Upper Peninsula, a region famous for producing some of the highest quality copper specimens in the world. The piece displays classic metallic luster, natural reddish brown tones, and distinct growth patterns preserved within the copper mass. Michigan copper formed when hydrothermal fluids deposited pure native copper within basalt flows, creating impressive masses like this one. A substantial and
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