Voltaite

Small greenish-black crystals of voltaite with white alunogen

Origin: Anna Mine, Alsdorf, Aachen, North Rhine-Westphalia, Germany

Picture size: 3 mm

Owner: Thomas Witzke

 

Dark greenish-black crystals of voltaite on alunogen

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

Picture size: 4 mm

Owner: Thomas Witzke

 

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Specimen of voltaite (whitish crystalline crust and specks) on crystals of brown szomolnokite

Origin: Alcaparrosa Mine, Cerritos Bayos, Chile

Sample size: 5 x 4 x 2.5 cm

 

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Black voltaite crystals with aggregates of rosa römerite on matrix

Origin: Zeche Julia, Herne, Ruhr Coal Mine area, Germany

Sample size: micromount

 

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