Tetrawickmanite

 

Tetrawickmanite on bavenite

Origin: Foote mine, Kings Mountain, Cleveland Co., North Carolina, U.S.A.

Owner: Lou Perloff

Microscopic image

 

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Photo-Atlas of Minerals

  

 

  

Extremely rare micro yellow octahedral crystals in a small 2 mm vug. The crystals are about 0.1 mm in size. Ex. Grenier Collection

Origin: Langban, Sweden
ex. Andreas Forsberg collection

Sample size: 2.5 x 2.5 x 2 cm (top), 4 x 1.5 x 2 cm (bottom)

 

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Ex Pinch coll.

Origin: Långban mine, Bergslagen ore distr., Filipstad, Värmland, Sweden

Sample size: 2 x 1.3 x 1 cm (top), 5 x 3.5 x 3 cm (bottom)

 

  

Tiny, less than 0.3 mm octahedral yellow, glassy crystals in vuggy matrix.

Origin: Langban, Varmland, Sweden

Ex. Grenier collection

Sample size: 1.5 x 1 x 1 cm

 

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This specimen has exposed vugs with many scattered crystals of tetrawickmanite to about 0.5 mm across

Origin: Långban, Sweden

Harry von Eckermann Collection

Sample size: 5 x 3 x 2.4 cm

 

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Tiny yellow-brown crystals in matrix

Origin: Långban, Värmland, Sweden

Sample size: micromount (top), 1.5 x 2 cm (bottom)

 

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