Bementite

Origin: Gambatesa, Val Graveglia, Italy
Owner: Rik Dillen

 

Photo courtesy of: 

Rik Dillen

The Henry (Rik) Dillen mineral collection

 

  
Bementite on andradite
Origin: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa
Sample size: 5.6 x 4.5 x 2.1 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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