Cobaltomenite

  
 
  
Origin: Paris #25 mine, Grand Co., Utah, U.S.A.
Sample size: 6 x 4 x 3 cm (top), 4 x 2.5 x 1 cm (bottom)
 
  
Bright raspberry red single crystals to 0.3 mm
Deep raspberry red micro crystals to less than 0.2 mm
  
Bright raspberry red single crystals and aggregates to about 0.75 mm across matrix.
Origin: area of Little Eva mine, Yellow Cat dist., Grand Co., Utah, United States
Sample size: 3 x 2 x 2 cm (top), 2.5 x 1 cm x 5 mm (2nd row), 2.5 x 2 x 0.5 mm (3rd row), 20 x 20 x 4 mm (bottom)
 
  
 
  
 
  
Reddish purple fine micro crystals almost as a coating on siltstone matrix.
Origin: Parco mine, Grand Co., Utah, United States
Sample size: 4 x 3 x 1 cm (top), 4 x 4 x 2 cm (2nd row), 6.5 x 3.5 x 1 cm (3rd/bottom row)
 
  
Origin: Area of Little Eva Mine, Yellow Cat dist., Grand Co., Utah, United States
Sample size: 2 x 1.5 x 0.5 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

Origin: Thompsons District, Grand County, Utah, U.S.A.
Sample size: 4 x 8 cm
 
Rose-red minute crystals on sandstone
Origin: Temple Mountain, Emery Co., Utah, U.S.A.
Sample size: 2 x 3 cm
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

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