Geocronite

Finegrained grey metallic crystalline with galena crystals ± siderite in matrix
Origin: 16,24 level, Haje, Pribram, Czech Republic
Sample size: 2.5 x 5.5 cm
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

  
  
Origin: Pollone mine, Valdicastello Carducci, Pietrasanta, Apuan Alps, Lucca Province, Tuscany, Italy
Sample size: 2.7 x 2.4 x 1.3 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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