Bornite

  
Bornite on chalcocite
Origin: Flambeau Mine, Rusk County, Wisconsin, U.S.A.
Ex. Barlow coll.
Sample size: 2.9 x 2.8 x 1.9 cm
 
  
Bornite with pyrite
Origin: Leonard Mine, Butte, Montana, U.S.A.
Sample size: 3.2 x 2 x 1.1 cm
 
  
Origin: Dzhezkazgan, Kazakhstan
Sample size: 8.2 x 3 x 1.7 cm
 
  
Origin: Carn Brea Mine, Illogan, Redruth-St Day Dist., Cornwall, England
Ex. Richard Barstow collection
Sample size: 2.1 x 1.8 x 1.7 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

  
  
Bornite pseudomorph replacing chalcocite with chalcocite
Origin: Flambeau mine, Ladysmith, Rusk Co., Wisconsin, U.S.A.
Ex Scott Williams specimen
Sample size: 5 x 3.5 x 2.8 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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