Tellurobismuthite

  
 
  
Tellurobismuthite with gold in quartz in schist, ex. Kaar collection
Origin: Clogau St. David mine, Bontddu, Wales
Sample size: 4 x 4 x3 cm, grains to 1 mm, some larger flakes (top), 5 x 3 x 3 cm (bottom)
 
 
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

  
Origin: Brandy Gill, Carrock Fells, Cumberland, England
Sample size: 4.5 x 4 x 3 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

  
Shiny grey metallic tellurobismuthite with free gold, cobaltite and rutile
Origin: 250 m level, Boliden Mine, Sweden
Sample size: 2 x 2.5 cm
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

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