Eskimoite

  
Vuggy sulfide matrix with free standing slender acicular crystals to about 0.25 mm.
  
Grey acicular crystals in tiny vug less than 1 mm. Ex. Bart Cannon (verified)
Origin: Flathead mine, Niarada, Flathead Co., Montana, United States
Sample size: 2.5 x 2 x 1.5 cm (top), 1.5 x 1 cm (bottom)
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

  
 
  
Eskimoite with gustavite in matrix. There may be other minerals present such as vikingite, ourayite, schirmerite, and treasurite.
Origin: Erzweis, Bockhart, Gastein valley, Salzburg, Austria
Sample size: 3.8 x 2.4 x 1.3 cm (top), 2.9 x 2.9 x 1.3 cm (2nd/bottom row)
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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