Zwieselite

Brown zwieselite in granite pegmatite
Origin: Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany
Sample size: 8 mm
Owner: Thomas Witzke
 

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

 
Massive redbrown zwieselite with vivianite, pyrite and pyrrhotite
Massive red-brown zwieselite with vivianite
Origin: Hagendorf-Süd, Bavaria, Germany
Sample size: ca 1.5 x 1.5 cm (top), 2 x 4.5 cm (2nd row), 3.5 x 5 cm (bottom)
 

Photo courtesy of: 

Diederik Visser

Diederik Visser Minerals & Petrological Services

 

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