Bournonite

  
Bournonite on arsenopyrite
Origin: Pachapaqui District, Bolognesi Province, Ancash Dept, Peru
Sample size: 5.5 x 5.3 x 2.8 cm
 
  
Bournonite with quartz
Origin: Herodsfoot Mine, Cornwall, England
Sample size: 8.5 x 5 x 5.5 cm
 
  
Bournonite with quartz and pyrite
Origin: Mina Machacamarca, near Colavi, Potosi Department, Bolivia
Sample size: 13.4 x 11.4 x 2.6 cm
 
Origin: Yaogangxian Mine, Hunan Province, China
Sample size: 5 x 3 x 2.7 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

Origin: Neudorf, Harzgerode, Harz Mts, Saxony-Anhalt, Germany
Sample size: 6.5 cm
Owner: Thomas Witzke
 

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

  
 
  
Bournonite with ferberite
Origin: Yaogangxian mine, near Chenzhou, Yizhang Co., Hunan Province, China
Sample size: 4.3 x 3 x 3.2 cm (top), 20 x 25 x 17 mm (2nd/bottom row)
 
  
Bournonite on pyrite
Origin: Pachapaqui district, Bolognesi Province, Ancash Dept., Peru
Ex. Dave Ellis collection
Sample size: 8.5 x 4 x 3 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

  
Cogswheel twinned crystals to 1 mm, dull steel grey.
Origin: Pribram, Bohemia, Czech Republic
Ex. DeVito Collection & Ex. George English collection
Sample size: 4 x 3 x 2 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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