Ahlfeldite

  
Green crusty ahlfeldite with massive dark gray krutaite
Origin: El Dragon, Colquechaca, Bolivia
Sample size: 2.5 x 2 x 1 cm
 
  
specimen with pinkish crystals in matrix of ahlfeldite wo about 0.5 mm with rich coverage of blue chalcomenite.
Origin: Pacajake, Colquechaca, Chayanta Province, Potosí Department, Bolivia (type locality)
Ex. Feinglos Collection.
Sample size: 2.7 x 1.8 x 1.3 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

Green crust on krutaite
Apple-green crystalline crusts with blue chalcomenite on matrix
Origin: El Dragon Mine, Potosi, Bolivia
Sample size: micromount (top), 1.3 x 1.4 cm (bottom)
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

Ahlfieldite with chalcomenite
Origin: Mina El Dragon, Potosi, Bolivia
Sample size: 2.7 x 2.2 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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