Tungstite

Origin: San Antonio de Calacalani mine, Cercado, Oruro, Bolivia
Picture size: 5 mm
Owner: Thomas Witzke
 

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

  
Bright yellow crust on black crystallized ferberite
Origin: Tazna mine, Potosi Dept., Bolivia
Ex. DeVito collection
Sample size: 3.5 x 2.5 x 2 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

  
 
  
Tungstite with quartz
Origin: San Alberto Mine, La Salada, Mun. de Alamos, Sonora, Mexico
Sample size: 6.5 x 4.5 x 6.8 cm (top), 6.6 x 6.9 x 4.2 cm (bottom)
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

  
Origin: San Antonio de Calacalani mine, Cercado Prov., Oruro Dept., Bolivia
Ex. George Elling collection
Sample size: 6.7 x 5.7 x 5.7 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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