Pentagonite

 
Grouping of pentangonite crystals set on a small amount of basalt and heulandite matrix.
  
 
  
 
  
Grouping of pentangonite crystals set on a small amount of basalt and okenite matrix.
  
Spray of rich blue pentagonite crystals set on basalt matrix with stilbite and heulandite.
  
Basalt with an exposed vug lined with myriad small heulandite crystals upon which is a 2.5 cm group of rich royal blue pentagonite crystals.
Origin: Wagholi Quarry, Poona, India, Asia
Sample size: 2.9 x 2.7 x 1.7 cm (top), 3.2 x 2 x 1.6 cm (2nd row), 2.5 x 2 x 1.7 cm (3rd row), 5.2 x 3.5 x 3 cm (4th/5th row), 5 x 4 x 3 cm (6th row), 5 x 3.7 x 2.7 cm (7th row), 7 x 6.5 x 6 cm (bottom)
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

  
 
  
Pentagonite on okenite
Origin: Wagholi Quarry, Poona, near Bombay, India
Sample size: 8.1 x 5.6 x 3.5 cm (top/2nd row), 8 x 7.7 x 5.6 cm (3rd/bottom row)
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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