Heyrovskýite

Metallic gray heyrovskýite in quartz
Origin: Hûrky u Cistá, Velká Chmelistná (Großmeleschen), Rakovnik, Středočeský Kraj, Bohemia, Czech Republic
Picture size: 4 mm
Owner: Thomas Witzke
 

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

Small black to metallic lead-grey needles in/on fluorite
Origin: Grube Clara, Oberwolfach, Schwarzwald, Germany
Sample size: micromount
 
  
Grey metallic platy inclusions in quartz
Origin: Hurky, Czech Republic
Sample size: 6 x 8.5 cm
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

  
Shiny, silvery micro crystals to less than 0.25 mm in quartz
Origin: Hurky, Stredocesky kraj, Bohemia, Czech Republic (type locality)
Sample size: 3.5 x 2 x 2 cm
 
  
Grey, metallic, prismatic and often striated crystals to 1 mm associated with native bismuth and bismuthinite.
Origin: prospect near Austin, Lander Co., Nevada, United States
Sample size: 6 x 4 x 2.5 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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