Pinakiolite

  

Origin: Langban mine, Varmland, Filipstad, Sweden
Erling Collection

Sample size: miniature, 1 mm prismatic, black crystals in calcite

 

Photo courtesy of: 

  

 

 

  

  

 

  

This specimen has dark crystals of pinakiolite in matrix of calcite and abundant phlogopite to 0.8 cm across. Pinakiolite was found in the Ramen drift of the mine. It is suspected that swedenborgite is also present as a few scattered grains based on the blue fluorescence under SW UV light. Ex. Harry von Eckermann Collection

  

This specimen of calcite hosts numerous prismatic crystals of  pinakiolite. Ex. Frank Edwards collection

Origin: Långban, Sweden

Sample size: 10.5 x 7.5 x 4.4 cm (top/2nd row), 6.7 x 3.7 x 1.8 cm (3rd/4th row), 3.8 x 2.8 x 1 cm (5th row), 9 x 6.5 x 3 cm (6th/bottom row)

 

Photo courtesy of: 

 

Black crystals in calcite and hausmannite matrix

Origin: Långban, Värmland, Sweden

Sample size: micromounts

 

Photo courtesy of: