Forsterite

  
Forsterite with calcite
Origin: Kollona, near Embilipitiya, Uva Province, Sri Lanka
Ex. George Loud collection
Sample size: 19 x 9 x 7 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

  
Variety peridot. Ex. Joseph Freilich collection
  
 
  
Variety peridot with ludwigite inclusions
  
 
  
Origin: Suppat, Kohistan, Pakistan
Sample size: 4.6 x 4 x 2.3 cm (top), 3.4 x 1.8 x 1.2 cm (2nd row), 5.3 x 2.1 x 1.4 cm (3rd/4th row), 2.6 x 2.4 x 2.1 cm (5th row), 4.1 x 3.6 x 2.1 cm (6th/bottom row)
 
  
 
  
Variety peridot
Origin: St. Johns Island, Egypt
Sample size: 1.1 x 0.5 x 0.4 cm, 1.1 x 0.4 x 0.2 cm, 0.8 x 0.6 x 0.5 cm, 0.6 x 0.6 x 0.3 cm (top/2nd row), .7 x 0.7 x 0.2 cm, 0.6 x 0.5 x 0.3 cm, 0.6 x 0.5 x 0.3 cm, 0.9 x 0.7 x 0.3 cm (3rd/bottom row)
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

 

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