Heulandite

  
  
Calcite on heulandite
Origin: Shakur, Maharashtra, India
Sample size: 8.0 x 6.0 x 5.5 cm
 
  
  
Origin: Veranopolis, Rio Grande do Sul, Brazil
Sample size: 6.3 x 4.8 x 3.6 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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