Genthelvite

  
Genthelvite on aegerine
Origin: DeSourdy quarry, Mont St. Hilaire, Quebec, Canada
Sample size: 5 mm crystal on 1.5 cm aegerine crystal
 
  
Genthelvite on aegerine
Origin: DeSourdy quarry, Mont St. Hilaire, Quebec, Canada
Sample size: left 1 cm crystal on 1.5 cm aegerine crysta, right 2 large crystals up to 1.3 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

 
Origin: Mont St. Hilaire, Quebec, Canada
Owner: Lou Perloff
Microscopic image
 

Photo courtesy of: 

Lou Perloff

Photo-Atlas of Minerals

 

Genthelvite fluoresces bright green under SW-UV light
Origin: Mont Saint-Hilaire, Quebec, Canada
Sample size: 1.6 x 1.2 x 1 cm
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

Genthelvite with minor mangan-neptunite
  
Genthelvite on albite
  
Genthelvite with kupletskite-(Ce)
  
 
  
Origin: Mont St. Hilaire, Quebec, Canada
Sample size: 2 x 1.3 x 1.2 cm (top), 2.1 x 1.7 x 1.5 cm (2nd/3rd row), 1.4 x 0.9 x 0.9 cm (4th row), 1.4 x 0.9 x 0.6 cm (5th/6th row), 2 x 1.5 x 1.1 cm (bottom)
 
  
 
  
 
  
Origin: Zagi Mountain, near Hammedebad, Khaffor Dehri, N.W. Frontier Province, Pakistan
Sample size: 2.1 x 1.7 x 0.8 cm (top), 6.9 x 4.4 x 3.2 cm (2nd row), 4.6 x 4.3 x 4.2 cm (bottom)
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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