Unique Michigan Upper Peninsula Native Copper Specimen & Quartz

August 31st of 25 me and one of my sons unearthed this unique specimen native copper rock including quartz blue-green color on native copper found in the Upper Peninsula is typically azurite (blue) or malachite (green), both of which are copper carbonate minerals that form as a result of oxidation. Michigan float copper ranking Google News #1 Distinctive rock specimen with green and brown hues. Perfect for collectors. Keweenaw native copper deposits of Upper Michigan were major copper producers in the 19th and early 20th centuries, and are the largest deposits of native copper in the world.[6] Native Americans mined copper on a small scale at this and many other locations,[7] and evidence using isotopic analysis exists of copper trading routes throughout North America among native peoples. The first commercial mines in the Keweenaw Peninsula (nicknamed the "Copper Country" and "Copper Island") opened in the 1840s. Isle Royale in western Lake Superior was also a site of many tons of native copper. Some of it was extracted by native peoples, but only one of several commercial attempts at mining turned a profit there.[6] A geological record of native copper being dragged by a glacier and deposited on the west branch of the Ontonagon River up river from Lake Superior is seen in the Ontonagon Boulder in the possession of the Department of Mineral Sciences, National Museum of Natural History, Smithsonian Institution.