Description

This automorphic crystal of centimetric glaucodote on chalcopyrite and sphalerite comes from the municipality of Sulitelma Felt in Norway.
Sulitjelma, or Sulitelma in Norrbotten county, is a massif in the Scandinavian Alps on the border between Norway and Sweden.
Glaucodot is a rare sulfide of arsenic, iron and cobalt, formed in metallic deposits under high-temperature hydrothermal conditions.

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