Pyrolusite

  
  
Origin: Gremmelsbach, Triberg, Black Forest, Germany
Ex. Mark Wrigley collection
Sample size: 4.3 x 3.8 x 2.2 cm
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

Origin: Platt Mine, Dundas, Tasmania, Australia
Sample size: unknown
Sample owner: Steve Sorrell
 

Photo courtesy of: 

Steve Sorrell

Crocoite.com

 

  
  
Pyrolusite covered with tiny quartz crysals
Origin: Warwick, Queensland, Australia
Sample size: field of view 19 mm (top left), 3 mm (top right), 3 mm (2nd row left), 0.7 mm (2nd row right), 3 mm (bottom)
Sample owner: Sue and Phil Ericksson
 
 

Photo courtesy of: 

Theo Kloprogge

 

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