Bornite

  
Bornite pseudomorph after chalcocite
Origin: Flambeau Mine, Ladysmith, Rusk Co., Wisconsin, U.S.A.
Sample size: 4.8 x 3.2 x 4 cm
 
  
Origin: Copper Mountain Mine, south of St. George, Utah, U.S.A.
Sample size: 10.6 x 5.5 x 4.8 cm sawn slab
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

  
Bornite coating on a sheet of native silver giving it the multi-coloured iridescence
Origin: San Martin Mine, Zacatecas, Mexico
Sample size: 10.1 x 5.4 x 1.6 cm
 
  
  
A sheet of natural silver cuts through a matrix covered with iridescent purple and blue bornite
Origin: Zacatecas, Mexico
Sample size: 5.4 x 3.4 x 3.1 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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