Boracite

     

 

  

 

  

 

  

Boracite on magnesite

Origin: Boulby Potash Mine, Loftus, Cleveland, North Yorkshire, England
ex. Tim Sherburn Collection

Sample size: 6 x 5 x 3.5 cm (top), 10 x 8 x 7 cm (2nd/3rd row), 7 x 5 x 4 cm (4th row), 6 x 3 x 2 cm (bottom)

 

  

Origin: Bernberg, Germany

Sample size: 2 x 2.5 x 4 cm

 

     

Origin: Luneburg, nr. Hannover, Germany

Sample size: 1 x 1 x 1 cm

 

  

  

Origin: Boulby Potash Mine, Loftus, Cleveland, England

Sample size: 9.8 x 7.5 x 5.5 cm

 

  

Eleve lustrous and colorless, cubic boracite crystals to 2 mm in a glass tube sealed in a cellophane envelope

Origin: Kalkburg Hill, Luneburg, Lower Saxony, Germany (type locality)

The old quarry is now in a nature conservation area, where collecting is prohibited.

Ex. Richard Hauck collection

Sample size: 6.4 x 4.2 x 1.0 cm envelope

 

Photo courtesy of: 

The Arkenstone

 

  

Origin: Boulby Potash Mine, Loftus, Cleveland, England

Sample size: 29 x 32 x 31 mm

 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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