Sturmanite

 

  

Origin: N'Chwaning mine, Kalahari Mn field, South Africa

Sample size: crystals to 1.3 cm (top), 5 x 3 x 2 cm (bottom)

 

    

 

  

Hexagonal dipyramidal honey yellow crystals without prism faces to 2.5 mm

Origin: N'Chwaning #2 mine, Kalahari Mn Field, Northern Cape Province, South Africa

Ex. DeVito collection

Sample size: 4.5 x 3 x 1.5 cm (top/2nd row), 4 x 3 x 1.5 cm (bottom)

 

Photo courtesy of: 

 

 

Origin: Wessels mine, Kuruman, No. Cape, South Africa

Owner: Lou Perloff

Microscopic image

 

 

 

Origin: N'Chwaning mine, Kuruman, No. Cape, South Africa

Owner: Lou Perloff

Microscopic image

 

Photo courtesy of: 

Photo-Atlas of Minerals

 

  

 

  

 

 

  

Origin: N'Chwaning II Mine, Kalahari, South Africa

Sample size: 3.5 x 3 x 2.7 cm (top), 4.5 x 3.5 x 2 cm (2nd row), 2.5 x 2 x 1.2 cm (3rd row), 3 x 2 x 2 cm (bottom)

 

Photo courtesy of: 

The Arkenstone

 

  

Origin: N'Chwaning Mines, Kalahari manganese fields, Northern Cape Province, South Africa

Sample size: 13 x 10 x 8 mm

 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

  

Origin: N'Chwaning Mine, Kuruman, South Africa

Ex. Dave Douglass collection

Sample size: 5.5 x 2.3 x 2.3 cm

 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

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