Pyroaurite

 

White micaeous pyroaurite

Origin: Siebenlehn, Nossen, Saxony, Germany

Picture size: specimen 8.5 cm (top), 4 mm (bottom)

Owner: Thomas Witzke

 

Pyroaurite with black magnetite

Origin: Långban, Filipstad, Värmland, Sweden

Picture size: 5 mm

Owner: Thomas Witzke

 

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Ex. Grenier collection

Origin: Långban mine, Bergslagen ore distr., Filipstad, Värmland, Sweden (type locality)

Sample size: 3 x 2 x 1.5 cm (top), 4 x 1.5 cm x 5 mm (bottom)

 

  

The pyroaurite is superb and occurs as golden plates to about 0.5 mm. The sjogrenite occurs as outstanding translucent blue micro crystals to about 0.75 mm spread evenly across matrix.

Origin: Phalaborwa, Transvaal, South Africa

Sample size: 3 x 2.5 x 1 cm

 

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This specimen is mostly brecciated calcite with poorly developed crystals of pyroaurite

  

  

 

  

This specimen has abundant bladed crystals of pyroaurite on the display side of this specimen. Also present are dozens of 1 mm sized crystals of magnetite and there is a 2+ mm sized exposed mass of cleaved galena in the vein rock. The dominant forms are cubes and octahedra.

  

This specimen of white dolomite has scattered 1-2 mm crystals of blue coloured pyroaurite. Very frequently this colour of pyroaurite is misidentified as wermlandite.

Origin: Långban, Sweden

Harry von Eckermann Collection

Sample size: 5.5 x 5 x 4 cm (top), 12.3 x 8 x 5 cm (2nd/3rd row), 6 x 6 x 4 cm (4th row), 5.5 x 3 x 3 cm (5th/bottom row)

 

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