Copper, Pewabic Lode, Quincy Mine, Quincy Mining Company, Lake Superior Copper District, Michigan Miniature 2.5 x 3.5 x 8 cm $300. On-line 11/19. SOLD.
Rich tenorite black and deep chocolate brown patina over well crystallized copper with no point of attachment. Specimen displays equally well from either side and is in perfect condition. Original patina and never acid dipped or chemically cleaned.