Orthoclase

  

 

  

 

     

 

  

 

  

 

  

Manebach twinning of adularia

Origin: Giuv Glacier, Val Giuv, Switzerland

Sample size: 2.6 x 2.2 x 1.5 cm (top), 6 x 5.7 x 3.4 cm (2nd/3rd row), 7.5 x 7.5 x 4 cm (4th row), 5.5 x 4.5 x 2.7 cm (5th/6th row), 5.5 x 5 x 2.8 cm (7th row), 5 x 4.8 x 3.2 cm (8th/bottom row)
 

 

Photo courtesy of: 

Trinityminerals.com

 

     

  

Origin: Organ Mountains, Dona Ana Co., New Mexco, U.S.A.

Ex. Marty Lewadny collection

Sample size: 14.0 x 4.8 x 3.6 cm

 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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