Dawsonite

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

Photo courtesy of: 

Lou Perloff

Photo-Atlas of Minerals

 

White to colorless striated crystals in sodalite syenite
 
Origin: Mont St. Hilaire, Quebec, Canada
Sample size: thumbnail (top), thumbnail (2nd row), 2 x 4 cm (bottom)
 
Sprays of acicular dawsonite crystals on matrix
  
Origin: Terlano, Bolzano Province, southern Tirol, Italy
Sample size: 3.5 x 4 cm (top), thumbnail
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services


 

  
Origin: Francon Quarry, Montréal, Jacques Cartier Co., Québec, Canada
Sample size: 9 x 7 x 4.6 cm
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

  
Origin: Siele mine, Amiata Mt., Siena Province, Tuscany, Italy
Sample size: 8 x 6 x 3 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

  
Origin: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville Co., Quebec, Canada
Sample size: 3.5 x 2.8 x 6 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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