Cyanotrichite

 
Origin: Penberthy Croft mine, St Hilary, Cornwall, England, UK
Sample size: area 1 cm (top), area 5 mm, light blue cyanotrichite on liskeardite, a rare combination from this mine (bottom)
Owner: Steve Rust
 

Photo courtesy of: 

Steve Rust

 

  
  
Origin: Grandview Mine, Grand Canyon Nat. Park, Coconino Co., Arizona, U.S.A.
Sample size: 5.8 x 4.4 x 3.2 cm
 
  
Origin: Quinglong Mine, Guizhou Province, China
Sample size: 13.1 x 7 x 3.8 cm
 
  
Origin: Babu, Guangxi, China
Sample size: 7.3 x 6.5 x 2.5 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

  
Origin: Tunnel NW of Rio Vista Mine, San Bernadino Co., California, United States
Ex. DeVito collection
Sample size: 4.5 x 2.5 x 2 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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