Spinel

  

 

  

 

  

Blue spinel with muscovite

Blue spinel

Origin: Kaiiado District, Rift Valley Province, Kenya

Sample size: 3.5 x 2 x 2 cm (top), 3.6 x 2.2 x 1.3 cm (2nd row), 3.7 x 2.5 x 2.1 cm (bottom)

 

  

 

  

 

  

 

  

 

  

Origin: Luc Yen, Yen Bai Province, Vietnam

Sample size: 8.1 x 6.6 x 4.2 cm (top/2nd row), 2.8 x 2.4 x 1.7 cm (3rd row), 6.1 x 5.3 x 2.5 cm (4th row), 7.8 x 5.4 x 3.6 cm (5th row), 4.7 x 4.7 x 3.3 cm (6th/bottom row)

 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone