Trolleite

  
 This piece is composed of massive blue trolleite and darker blue patches of scorzalite.
  
 
  
 
  
Ex. Kidwell collection
Origin: Champion mine, Mono Co., California, United States
Sample size: 7 x 5 x 3 cm (top), 6 x 5 x 3 cm (2nd row), 7 x 5 x 3 cm (3rd row), 5 x 3 x 2 cm (bottom)
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

Blue grains and massive in matrix
Origin: Mono County Mine, Mono County, California, U.S.A.
Sample size: 3 x 4 cm
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

  
  
Pale blue masses of trolleite are present throughout this topaz rich matrix, along with darker blue masses of lazulite.
Origin: Champion Mine, Laws, White Mts, Mono Co., California, U.S.A.
Sample size: 10.3 x 7 x 3.6 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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