Yvonite (Rare) on Arsenopyrite and Bismuth - image 1

Yvonite (Rare) on Arsenopyrite and Bismuth - image 2

Yvonite (Rare) on Arsenopyrite and Bismuth

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A rare hydrated copper arsenate characterized in 1995. This piece is showy and outstanding for the species; it originates from the type locality in France. The turquoise blue yvonite mounds on silver-gray arsenopyrite and native bismuth matrix resulting in a striking contrast. Minor puchcharovskite in association. Named after Professor Klaus Yvan, Crystallography Department, University of Geneva Switzerland.