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3,000-year-old copper mask is oldest crafted object in South America

Andrew Topf | June 11, 2017 | 4:02 pm Base Metals Latin America Copper 

It's a well-known fact that copper was used by ancient peoples to make some of the earliest tools and artwork. After extensive study of a mask found in a grave in the Catamarca Province of northern Argentina, anthropologists now believe the...

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