Cassiterite

  
  
  
  
 
  
  
Ex. Gene Meieran collection
Origin: Viloco mine, Loayza Province, La Paz Department, Bolivia
Sample size: 5.0 x 3.2 x 2.0 cm (top/2nd/3rd/4th/5th row), 6.0 x 5.8 x 4.0 cm (6th/7th/bottom row)
 
  
Cassiterite with tourmaline
Origin: Minas Gerais, Brazil
Ex. Gene Meieran collection
Sample size: 3.0 x 2.2 x 2.1 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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