Lukkulaisvaaraite
Lukkulaisvaaraite is an IMA-recognized mineral species in the sulfide class, with the chemical formula Pd₁₄Ag₂Te₉.
It crystallizes in the tetragonal crystal system (space group I4/m).
Key properties: Mohs hardness 4; specific gravity 9.993; Gray streak; Metallic luster.
IMA symbol Lkk, IMA status: approved, named in 2013.
Found in veins, veinlets and pods in sulfide-bearing, pegmatoid pyroxenites in a layered gabbronorite intrusion, formed under post-magmatic conditions.
It is found associated with Tulameenite, telargpalite, Bi-rich kotulskite, chalcopyrite, millerite, bornite, hematite, moncheite, hongshiite, telluropalladinite, sperrylite, palarstanide.
The name refers to the locality from which the first specimens were obtained, the Lukkulaisvaara intrusion.