Ferrosilite

 
Origin: Summit Rock, Diamond Lake, Douglas Co., Oregon, U.S.A.
Owner: Lou Perloff
Microscopic image
 
Origin: Biancavilla, Mt. Etna, Sicily, Italy
Owner: Lou Perloff
Microscopic image
 

Photo courtesy of: 

Lou Perloff

Photo-Atlas of Minerals

 

Greenish-brown coating on matrix
Origin: Hanksville, Utah, U.SA.
Sample size: 2.5 x 4 cm
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

  
  
Ferrosilite with calcite, fluorite and quartz
Origin: Yates Uranium Mine, Otter Lake, Quebec, Canada
Ex. Marty Lewadny collection
Sample size: 8.5 x 6.5 x 5.8 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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