Mackayite

 
Origin: McGuinnity shaft, Goldfield, Esmeralda Co., Nevada, U.S.A.
Owner: Lou Perloff
Microscopic image
 
 

Photo courtesy of: 

Lou Perloff

Photo-Atlas of Minerals

 

  
 
  
 
  
Origin: Lone Pine mine, Catron Co., New Mexico, U.S.A.
Sample size: 5 x 3 x 2 cm with grass green micro crystals and crust (top), 2 x 1.5 x 2 cm (2nd row), 2 x 1.5 x 1.5 cm (bottom)
 
  
 
  
 
  
 
  
Specimen with good combinations of rare species. At the center is a hollowed nodule of green, fine grain mackayite with glassy, well crystallized mackayite crystals to 1 mm. On the outer edges and deeper in the vug are silvery hessite crystals to about only 0.1 mm but are very evident. Also associated is a clear to grey crystal of chlorargyrite to about 0.75 mm on the mackayite at the center of the vug.
Origin: San Miguel mine, Moctezuma,, Sonora, Mexico
Ex. DeVito Collection
Sample size: 5 x 3.5 x 2 cm (top), 6 x 4 x 3 cm (2nd row), 6 x6 x 2.5 cm (3rd row), 4 x 3.5 x 3 cm (bottom)
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

  
  
 
  
Origin: San Miguel Mine, Moctezuma, Mun. de Moctezuma, Sonora, Mexico
Sample size: 8.1 x 5 x 3.7 cm (top/2nd row), 5.7 x 3.9 x 2.8 cm (bottom)
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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