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Copper, 'Laker Pocket', Lake Superior Copper District, near Eagle Harbor, Keweenaw County, Michigan Miniature 2.5 x 3 x 4.5 cm $250. Online 7/21


  • $ 25000

Branching arborescent copper crystals with no point of attachment. Collected from an exposed fissure vein in about 10 feet of water in June 2010. Original patina preserved. No faults. Provenance: Bob Barron; to Bob Nowakowski; to William Severance (2013): William A.N. Severance Collection #2013.06.