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March-April 2017

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Secondary Lead Minerals from the Copps Mine, Gogebic County, Michigan

THE COPPS MINE is located in sections 14, 15, and 22, T47N, R43W, in Upper Michigan's westernmost county of Gogebic, and approximately 9.8 kilometers north (N17°E) of Marenisco, the nearest community (fig. 3). The “mine” (more aptly described as an exploration) was developed in the 1880s to test the value of argentiferous galena showings discovered along a prominent ridge in the area and is named after Edward J. Copps, a Canadian businessman of Irish ancestry who settled in Michigan's Upper Peninsula in the 1880s and began prospecting mineral lands (Cox 2007).

Shawn M. Carlson is a 1991 graduate (geology) of Michigan Technological University and a consulting mineralogist.

Cullen Laughlin-Yurs is an avid collector and specimen dealer in Michigan's Upper Peninsula.

Travis A. Olds is a PhD candidate researching actinide chemistry and mineralogy at the University of Notre Dame.

Daniel R. Fountain is a mining and maritime historian with a longstanding interest in Michigan rocks and minerals. He is the author of two books on the history of gold and silver mining in Michigan's Upper Peninsula.

Owen P. Mills is director of the Applied Chemical and Morphological Analysis Laboratory in the Materials Science and Engineering Department at Michigan Technological University.

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