Covellite

 
Origin: Butte, Silver Bow co., Montana, U.S.A.
Owner: Lou Perloff
Microscopic image
 
Origin: Summitville, Rio Grande Co., Colorado
Owner: Lou Perloff
Microscopic image
 

Photo courtesy of: 

Lou Perloff

Photo-Atlas of Minerals

 

 
  
 
  
 
  
Origin: Leonard mine, Butte, Silver Bow Co., Montana, United States
Sample size: 7 x 5 x 2 cm (top), 7 x 7 x 4 cm (2nd row), 11 x 8 x 4 cm (bottom)
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

  
 
     
Origin: Leonard Mine, Butte, Silver Bow Co., Montana, Northwest USA
Sample size: 7 x 6.1 x 4.5 cm (top/2nd row), 7.3 x 4.5 x 2 cm (bottom)
 
  
Origin: Calabona mine, Alghero, North Sardinia, Italy
Ex. Giorgio Spiga collection
Sample size: 3 x 1 x 0.3 cm
 
  
  
Origin: Summittville, Rio Grande County, Colorado, U.S.A.
Ex. Keith Hayes collection
Sample size: up to 1.3 x 1.3 x 0.5 cm
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

  
Origin: Butte, Montana, U.S.A.
Sample size: 7.5 x 6.5 x 6.5 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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