Pentagonite

  
  
Pentagonite on stilbite
  
Pentagonite on cavansite on stilbite
  
 
  
Pentagonite on stilbite
Origin: Wagholi Quarry, near Bombay, India
Sample size: 6.9 x 5.2 x 4.1 cm (top/2nd row), 9.1 x 8.0 x 3.7 cm (3rd row), 9.2 x 4.6 x 4.1 cm (4th/5th row), 8 x 4 x 2.7 cm (6th/bottom row)
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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