Oenite
A cobalt-antimony arsenide discovered in Sweden's Tunaberg copper-cobalt skarns.
Intro adapted from Wikipedia (CC BY-SA).
Oenite is an IMA-recognized mineral species in the sulfide class, with the chemical formula CoSbAs.
It crystallizes in the orthorhombic crystal system. It is a member of the Löllingite structural group.
Key properties: specific gravity 7.91; Gray streak; Metallic luster.
IMA symbol Oen, IMA status: approved, named in 1995.
Found in Cu–Co-bearing skarns.
It is found associated with Chalcopyrite, bismuth, dyscrasite, allargentum, breithauptite, nisbite, tetrahedrite, cobaltite, gudmundite, löllingite, magnetite, galena, sphalerite.
In honor of Dr. Ing Soen Oen (1928–1996), Professor of Mineralogy, University of Amsterdam and Free University of Amsterdam, Amsterdam, The Netherlands.