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Formula: Pd14Ag2Te9
Telluride, platinum group
mineral, palladium- and silver-
bearing
Crystal System: Tetragonal
Specific gravity: 9.993 calculated
Hardness: 0 to 4
Streak: Grey
Colour: Light grey with a brownish tinge
Environments
Plutonic igneous environments
Pegmatites
Lukkulaisvaaraite is a relatively new mineral, approved in 2013.
Localities
At the type locality, the Lukkulaisvaara ultrabasic Massif, Olanga River, Oulanka plutonic complex, Loukhsky
District, Republic of Karelia, Russia, lukkulaisvaaraite occurs in veins, veinlets and pods in
sulphide-bearing, pegmatoid
pyroxenites in a layered
gabbronorite intrusion, formed under post-magmatic conditions.
Associated minerals include tulameenite,
telargpalite, bismuth-rich
kotulskite, chalcopyrite,
millerite, bornite,
hematite, moncheite,
hongshiite,
telluropalladinite,
sperrylite, palarstanide
and platinum group minerals. In polished section crystals of
Lukkulaisvaaraite are ~40 μm across, rimmed by tulameenite
(HOM, Mindat).
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