Colemanite

  
  
Colemanite wtih celestine needles
Origin: Thompson Mine, Death Valley, Inyo Co., California, U.S.A.
Ex. Charlie Freed collection
Sample size: 4.3 x 3.2 x 1.8 cm
 
  
  
Ex. Charlie Freed collection
  
  
Lustrous, botryoidal, amber calcite with scattered, colourless blades of colemanite.
Origin: Boron, California, U.S.A.
Sample size: 10.6 x 9.2 x 3.2 cm (top/2nd row), 8.0 x 6.1 x 4.6 cm (3rd/bottom row)
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

  
Origin: Boraxo Pit #1, Thompson Mine, Furnace Creek District, Inyo Co., California, U.S.A.
Ex. Jean Hamel collection
Sample size: 7.2 x 5.8 x 5.3 cm
 
  
Origin: Open Pit, Boron, Kern Co., California, U.S.A.
Sample size: 11.7 x 9.5 x 6.5 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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