Straczekite

Greenish-black crystals of straczekite
Origin: Union Carbide Mine, Wilson Springs (Potash Sulfur Springs), Garland Co., Arkansas, USA
Picture size: 1.5 mm
Owner: Thomas Witzke
 
Picture size: 1.4 mm
Picture size: 1.2 mm
Origin: Lichtenberg Absetzer mine dump, Ronneburg U deposit, Gera, Thuringia, Germany
Owner: Thomas Witzke
 

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

  
Deep black to silvery black thin, bladed or platy micro crystals to less than 0.5mm.
Origin: Union Carbide mine, Wilson Springs, Garland Co., Arkansas, United States
Ex Kidwell collection, ex. M. York collection
Sample size: 3.5 x 3 x 2 cm
 
  
Deep jet black micro crystals to less than 0.2 mm covering sandstone matrix.
Origin: Pandora mine, San Juan Co., Utah, United States
Sample size: 7 x 6 x 4 cm
 
  
Origin: Potash Sulfur Springs, Garland Co., Arkansas, United States
Ex. Kidwell collection
Sample size: 6.5 x 5 x 2 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

  
Origin: Union Carbide Mine, Wilson Springs (Potash Sulfur Springs), Garland Co., Arkansas, U.S.A.
Sample size: 3.4 x 1.9 x 2.6 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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