Fissure vein in Lake Superior
References
Tom Rosenmeyer (2009) A 2008 Lake Superior bonanza of copper crystals. Rocks & Minerals 84:32-40
Rosemeyer, T. 2011 New from the Keweenaw: Part 4 - Recent Mineral Finds in Michigan's Copper Country. Rocks & Minerals 86:205-227
Mineral List
5 entries listed. 5 valid minerals.
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