Manganite

  

Origin: Nchwaning I Mine, Kalahari Manganese Field, South Africa

Sample size: 6.2 x 3.8 x 2.2 cm

 

  

Manganite on quartz

Origin: N''Chwaning Mine, Kuruman, SW Africa

Sample size: 3.2 x 1.7 x 1.5 cm

 

  

  

Manganite with barite

  

  

Ex. Willard Perkin collection

Origin: Ilfeld, Harz Mts., Thuringia, Germany

Sample size: 7.7 x 7.3 x 5.8 cm (top/2nd/3rd row), 1.8 x 1.7 x 1.4 cm (4th/bottom row)

 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone