Grossular

Grossular on calcite
Origin: MGL Mine, Pershing Co., Nevada, United States
Sample size: 2 x 2.5 x 1.5 cm
  
Variety hessonite
Origin: Asbestos, Richmond Co.,, Quebec, Canada
Ex. Polak collection
Sample size: 3 x 2 x 1.5 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

     
 
        
 
        
Ex. Ed Swoboda collection
        
Chrome grossular on diopside
  
 
        
Grossular with vesuvianite. Ex. Swoboda collection
Origin: Jeffrey Mine, Asbestos, Quebec, Canada
Sample size: 5.5 x 4.8 x 2.9 cm (top), 5.5 x 4.0 x 2.7 cm (2nd row), 3.0 x 3.0 x 1.3 cm (3rd row), 4.5 x 4.4 x 3.9 cm (4th row), 2.4 x 2.3 x 1.5 cm (5th row), 4.4 x 4.2 x 3.0 cm (bottom)
 
     
 
     
Intermediate in composition in the andradite-grossular series
Origin: Sibindi, Cercle Nioro do Sahel, Kayes Region, Mali
Sample size: 3.5 x 3.5 x 2.5 cm (top), 3.5 x 2.5 x 2.1 cm (bottom)
 
     
Variety hessonite
Origin: Mt. Resonnau, Beigua Mountain Groups, Genova, Italy
Ex. Giuseppe Agozzino, Eric Asselborn collections
Sample size: 8.4 x 4.7 x 3.8 cm
 
     
Origin: Jeffrey Mine, Asbestos, Quebec, Canada
Ex. Wendell Wilson collection
Sample size: 2.2 x 2 x 1.2 cm
 
  
Grossular on diopside
Origin: Eden Mills, Lamoille County, Vermont, U.S.A.
Ex. Wendell Wilson collection
Sample size: 2 x 1.8 x 1.8 cm
 
        
Grossular on quartz matrix
Origin: Sierra de los Cruces, Mun. de Sierra Mujada, Coahuila, Mexico
Ex. Wendell Wilson collection
Sample size: 2.2 x 2.2 x 1.3 cm
 
              
Origin: Eden Mills, Lamoille & Orleans Cos., Vermont, U.S.A.
Ex. Ken Hollmann collection
Sample size: 5.4 x 4.6 x 1.7 cm
 
           
Variety hessonite measuring up to 7 mm associated with silvery-green tabular crystals groups of clinochlore on matrix.
Origin: Val di Susa, Torino Province, Piedmont, Italy
Ex. Brian Kosnar collection
Sample size: 8.0 x 5.6 x 4.5 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

  
Grossular on skarn matrix
Origin:  Coyote Front Range, near Bishop, Inyo Co., California, U.S.A.
Sample size: 4.7 x 4.7 x 3.6 cm
 
  
Grossular on wollastonite matrix
Origin: Sierra de la Cruz, Mun. de Sierra Mojada, Coahuila, Mexico
Sample size: 7.2 x 4.5 x 3.2 cm
 
        
Origin: Jeffrey Mine (Jeffrey Quarry), Asbestos, Shipton Township, Richmond Co., Quebec, Canada
Sample size: 16 x 9 x 22 mm
 
  
Origin: Orford Nickel mine, St-Denis-de-Brompton, Sherbrooke Co., Quebec, Canada
Sample size: 14.7 x 7.2 x 4.7 cm
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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