Tangeite

Origin: Monument Valley, Arizona, U.S.A.
Owner: Lou Perloff
Microscopic image
 
  
Origin: Thompson, Grand Co, Utah, U.S.A.
Owner: Lou Perloff
Microscopic image
 

Photo courtesy of: 

Lou Perloff

Photo-Atlas of Minerals

 

  
Origin: Corge Tange, Kyrgystan
Sample size: 3.5 x 3 x 1 cm with green grains throughout sandstone matrix
 
  
Green rosettes to 0.3 mm at the greatest across sandstone matrix.
  
 
  
Vivid green platy crystals to less than 0.2 mm in rosette-like aggregates across entire face. Ex. Kidwell collection
  
Bright greenish yellow micro rosettes to less than 0.3 mm covering most of face. Ex. Kidwell collection
  
Ex. Kidwell collection
Origin: Monument #1 mine, Navajo Co., Arizona, United States
Sample size: 4 x 3 x 1 cm (top), 5 x 3 x 2 cm (2nd row), 6 x 4.5 x 2 cm (3rd row), 4 x 4 x 1 cm (4th/5th row), 6 x 2.5 x 2.5 cm (6th/bottom row)
 
  
Origin: Molinello Mine, Val Graveglia, Italy
Sample size: 4 x 3 x 2.5 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

Tiny green crystals or crystal fragments in matrix
Origin: Molinello Mine, Graveglia, Genova, Italy
Sample size: 2 x 2.5 cm
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

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