Gerhardtite

Emerald green crystals and crusts on native copper
Origin: Champion Mine, Houghton Co., Michigan, U.S.A.
Sample size: 4 x 6.5 cm
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

Origin: Great Australia Mine, Cloncurry, Queensland, Australia
Sample size: unknown
Sample owner: Steve Sorrell
 

Photo courtesy of: 

Steve Sorrell

Crocoite.com

 

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