2.5" NATIVE COPPER NUGGET- Keweenaw Peninsula, Michigan

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Copper Nugget Size: 2.54" x 1.46" x 1.11" 64mm x 37mm x 28mm Weight: 4.45 oz 127 grams Location: Keweenaw Peninsula, Michigan 2.5" Native Copper Nugget from Michigan. A fantastic copper nugget formation rich in golden copper color intermixed with matrix rock. A natural formation lightly tumbled to remove outer matrix. Michigan's Keweenaw Peninsula is the most important locality in the world for pure native copper. Mining began in 1845 and continued until 1968 and over 5 million tons of refined copper was recovered from the mines. In the early 1900s it led the world in copper production and "Lake Copper" was the purity standard to which other refined copper was compared. Long before the mining operations began in the past century, pre-historic people mined copper from the mineral rich veins. A great copper nugget specimen for display and study. Save shipping costs by combining auction items for a period of 7 days. Shipping cost is calculated based upon actual shipping and packaging costs depending on item weight and size. We usually send out combined shipping invoices at the end of auction nights, or you can request one at any time. If for any reason you are unhappy with your purchase, you may return your package within 7 days of delivery for a full purchase price refund, minus shipping charge. DH Minerals is backed by 10 read more

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