Diamond

  

 

  

 

  

 

  

 

  

 

 

  

 

  

 

  

 

  

Spinel law twin

  

 

  

 

  

Origin: Diamantina, Minas Gerais, Brazil

Sample size: 6 x 5 x 4 mm (top), 4 x 4 x 4 mm (2nd row), 4 x 4 x 4 mm (3rd row), 4 x 4 x 4 mm (4th row), 3 x 3 x 3 mm (5th row), 3 x 3 x 3 mm (6th row), 3 x 3 x 3 mm (7th row), 4 x 4 x 4 mm (8th row), 3 x 3 x 3 mm (9th row), 3 x 3 x 3 mm (10th row), 3 x 3 x 3 mm (11th row), 3 x 3 x 3 mm (12th row), 3 x 3 x 3 mm (bottom)

 

Photo courtesy of: 

 

Twin

Origin: probably South Africa

Sample size: 1.1 x 1.0 x 0.5 cm

 

  

Origin: Zambia

Sample size: 2 x 1.7 x 1.6 cm

 

  

Origin: Kimberly Mine, South Africa
Ex. Smithsonian Museum, Walt Lidstrom (& family), Bill Pinch collections

Sample size: 1.6 x 1.5 x 1.5 cm

 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

  

Diamond in kimberlite matrix

Origin: ?, China

Sample size: 7 x 4.5 x 8.5 cm

 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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