Английская Википедия:Berzelianite
Berzelianite is a rare copper selenide mineral with the formula Cu2Se.[1][2][3] It occurs as thin dendritic crusts or as fine-grained inclusions. It crystallizes in the isometric system,[4][5][6] unlike its dimorph, bellidoite, which crystallizes in the tetragonal system.[7] The crystals are opaque and slightly malleable.
Occurrence and name
Berzelianite was first identified at the Skrikerum Mine (also spelled as Skrickerum Mine) in Valdemarsvik, Östergötland, Sweden in 1850.[5]
It was named by James Dwight Dana to honor Jöns Jakob Berzelius, a Swedish chemist who is seen as the father of analytical chemistry. He invented chemical symbol notation and discovered the elements cerium, selenium, silicon, and thorium.[5]
Berzelianite often occurs together with eucairite, clausthalite, tiemannite, umangite, klockmannite, aguilarite, crookesite, athabascaite, stromeyerite, polybasite, pearceite, gold, uraninite, pyrite, marcasite, calcite.
See also
References
