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Copper, Lake Superior Copper District, Michigan, Phoenix Mine attr., Keweenaw County attr., ex. William A. N. Severance Collection 99.56, Small Cabinet 3.0 x 4.0 x 8.5 cm. $4500. Online March 3.


  • $ 4,50000

Lustrous snake like group of tenorite and cuprite coated copper crystals with associated vein breccia on base.  Displays well from multiple orientations and in top condition.  Note:  Catalog number 15-380 may indicate Cranbrook Institute of Science as previous collection.  Mined circa late 19th century.