Hartite

Lamellar crystalline transparent hartite in matrix
Origin: Bilina Coal Mine, Bohemia, Czech Republic
Sample size: 2 x 2.5 cm
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

  
White crystalline hartite on wood.
Origin: S. Barbara Mine near Castelnuovo, dei Sabbioni, Arezzo, Italy
Sample size: 5.5 x 2.5 x 1.5 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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