Klockmannite

Klockmannite intergrown with covellite on quartz
Origin: Lichtenberg open cast, Ronneburg U deposit, Gera district, Thuringia, Germany
Picture size: 7.5 mm
Owner: Thomas Witzke
 

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

Black very small grains on calcite
Origin: Skrikerum, Sweden
Sample size: thumbnail
 
 
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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