Strontiodresserite

  
Origin: Francon quarry, St-Michel district, Montreal Island, Quebec, Canada
Sample size: 5.6 x 4.3 cm specimen with an exposed vug containing a 1 mm ball of strontiodresserite
 

Photo courtesy of: 

John Veevaert, Trinity Mineral Co

Trinityminerals.com

 

  
Origin: Saint Michel Quarry, Montreal Island, Quebec, Canada
Sample size: 7 x 6 x 5 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

White silky ball-shaped aggregates in cavities in matrix
Origin: Saint Michel Quarry, Montreal Island, Quebec, Canada
Sample size: 4 x 5 cm
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

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