Gonyerite

  
 
  
Dark brown or bronze colored rosettes as silky looking radiating sprays to 5mm in diameter
Origin: Långban mine, Bergslagen ore distr., Filipstad, Värmland, Sweden (type locality)
Sample size: 3.3 x 2.3 x 2 cm (top), 4.5 x 3 x 2 cm (bottom)
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

  
Origin: Langban, Filipstad, Varmland, Sweden
Ex. Mark Feinglos collection
Sample size: 8.7 x 8.0 x 2.8 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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