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Glacial Float Copper 3D Model
Specimen: Glacial float copper
Locality: Ontonagon County, Michigan, USA
Copper is one of the few metals that is known to occur in nature in its pure metallic form and specimens like these were deposited around the northern hemisphere by glacial activity in much the same way as the erratic bolders found in these areas.
Copper nuggets like this were an important source of the metal throughout history, especially in areas where the process of smelting copper ore had yet to be discovered.
This specimen is approximately 10.6cm x 4.9cm x 3cm (4.2in x 1.9in x 1.2in) and weighs 248.9 grams (8.77 oz)