2.2" Dark Brown Copper w-Silver HALFBREED Crystals Quincy Mine Michigan for sale

  • $33.50$50.00
  • Mineral: Copper
  • Product Code: EB0918CSHALF4
  • Availability: In Stock

Tags: 2.2 dark brown copper w-silver halfbreed crystals quincy mine michigan for sale, eb0918cshalf4, copper, silver

Copper-silver "halfbreeds" are a physical mixture of native silver and native copper. They form crystallized specimens at low-moderate temperatures because of the insolubility of copper and silver. This specimen has nice little dots of silver, formed on both sides of a floater piece of vein copper. The piece comes from the dumps of the Quincy Mine, which stopped operating in 1970s.

Location Quincy Mine, Hancock, Houghton Co., Michigan, USA
Size 2.2" x 1.7" x 0.6"
Suggested Stand A display square comes free with this specimen.