Alunogen

Origin: Carola Mine, Freital, Dresden, Saxony, Germany

Picture size: 5.5 mm

Owner: Thomas Witzke

 

Origin: Willi Agatz Mine, Dresden, Saxony, Germany

Picture size: 2 mm

Owner: Thomas Witzke

 

Colourless to white tabular crystals of alunogen on jarosite

Origin: Ronneburg U deposit, Gera district, Thuringia, Germany

Picture size: 5 mm

Owner: Thomas Witzke

 

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Aggregates of fine white to yellowish-white crystals with halotrichite or pickeringite

Origin: Cervenice (Dubnic), Southern Slovakia

Sample size: 3 x 3.5 cm

 

  

Keramohalite or Haarsalz are old names for alunogen, Yellowish thick botryoidal crust of aggregates of hair-like crystals

Origin: Mugrau im Böhmerwald, Czech Republic

Sample size: 8 x 8 cm

 

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