Brewsterite

  
 
  
 
  
 
  
 
  
 
  
Brewsterite cast after calcite (pseudomorph)
  
 
  
 
  
Origin: Yellow Lake, near Ollala, British Columbia, Canada
Sample size: 8 x 5.8 x 3.1 cm (top), 6.8 x 4.5 x 3 cm (2nd row), 5.3 x 3 x 2 cm (3rd row), 1.7 x 1.3 x 0.7 cm (4th row), 4.2 x 3.2 x 2.2 cm (5th row), 3.7 x 2.2 x 2.1 cm (6th row), 4.2 x 2.4 x 1 cm (7th row), 2.9 x 2.5 x 1.6 cm (8th row), 4.2 x 2.6 x 1.3 cm (bottom)
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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