Description:

North America, United States, Michigan, Ontonagon County, Caledonia Mines, ca. millions of years ago. This is an impressive and beautiful copper conglomeration or nugget formation with a dazzling matrix of copper with white quartz crystals. The surface exhibits an oxidized green color with pitting, deep cavities, and copper protrusions. The bright copper minerals are stunning, and photos really do not do justice to their brilliant orange-red sheen. This natural copper ore will make an amazing display or as part of a collection! The region where the Caledonia Mines operated was once populated by ancient Native American cultures that mined and used the copper for tools and prestige items. Between 1847 and 1920, over 100 different mines were in operation on Ontonagon County! Size: 7.5" L x 2.5" W x 1" H (19 cm x 6.4 cm x 2.5 cm); weight: 816.46 grams

Provenance: ex-Stein collection, Bloomfield Hills, Michigan, USA, acquired prior to 2010

All items legal to buy/sell under U.S. Statute covering cultural patrimony Code 2600, CHAPTER 14, and are guaranteed to be as described or your money back.

A Certificate of Authenticity will accompany all winning bids.

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Display stands not described as included/custom in the item description are for photography purposes only and will not be included with the item upon shipping.

#164105

  • Condition: Raw piece of ore. Stable fissures and cavities. Beautiful luster throughout.

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January 9, 2022 9:00 AM MST
Louisville, CO, US

Artemis Fine Arts

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