Metavoltine

Yellow metavoltine with colourless alunogen
Origin: Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany
Picture size: 5 mm
Owner: Thomas Witzke
 
Yellow metavoltine with colourless alunogen
Origin: Carola Mine, Freital, Dresden, Saxony, Germany
Picture size: 5 mm
Owner: Thomas Witzke
 
Origin: Willi Agatz Mine, Dresden, Saxony, Germany
Picture size: 5 mm
Owner: Thomas Witzke
 

Photo courtesy of: 

Thomas Witzke

Institut für Mineralogie und Lagerstättenlehre
Aachen, Germany

 

  
Yellow, scaly microcrystalline metavoltine coating a white matrix.
Origin: Cetine Mine, Siena Province, Tuscany , Italy
Ex. Polak collection
Sample size: 5.5 x 3.5 x 2 cm
 

Photo courtesy of: 

Tom Loomis

Dakota Matrix Minerals

 

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