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Copper, Central Mine attr. Lake Superior Copper District, Keweenaw County, Michigan Miniature 3 x 3.5 x 4 cm $1400. Online 3/7

NSMW12585

  • $ 1,40000


Floater group of sharp copper crystals displaying classic 'Herringbone' Spinel Law twinning and arborescent forms. In excellent condition. Looks great from virtually any angle.  Mike Martin Collection.