Copper in Basalt, Lake Superior Copper District, attr: Petherick Mine, Copper Falls Complex, Keweenaw County, Michigan Medium cabinet 9 x 9 x 15 cm $75. Online 6/6
NSMW11273
Copper (Pipe amygdule), Central Mine, Lake Superior Copper District, Keweenaw County, Michigan Medium cabinet 0.9. 1.3 x 16.0 cm $200. Online 6/6
NSMW11272
Copper with Silver, Nonesuch Shale Formation, White Pine Mine, Copper Range Mining Company, Lake Superior Copper District, Ontonogan County, Michigan Large cabinet 2 x 4.5 x 31 cm $650. Online 11/11.
NSMW11550
