Idrialite

  
Origin: Skaggs Springs, California, U.S.A.
Sample size: .5 x 3 x 2 cm with yellow, flaky crystals to 4 mm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

  
Origin: Skaggs Springs, Sonoma County, California, U.S.A.
Ex. Carl Davis collection
Sample size: 7.2 x 4.3 x 1.4 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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