Majakite

majakite

polarite

stannopalladinite

talhnakite

Images

Formula: PdNiAs
Arsenide of palladium and nickel
Specific gravity: 9.33
Hardness: 6
Colour: Greyish white, but lilac-grey when intergrown with native silver, distinctly rosy with a soft lilac tint with polarite, and greyish-white with a greenish tint with stannopalladinite (AM 62.1260).
Environments

Metamorphic environments

Localities

At the Konttijärvi deposit, Portimo complex, Lapland, Finland, majakite occurs in sulphide mineralisation in a strongly metamorphosed layered intrusive, associated with isomertieite and mertieite (HOM).

At the type locality, the Mayak mine, Talnakh Cu-Ni Deposit, Noril'sk, Putoran Plateau, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia, majakite was found only as intergrowths with other platinum group minerals in the chalcopyrite and talnakhite ores of the mine. Majakite often occurs as rounded or oval inclusions in polarite, and also as intergrowths with stannopalladinite. In some cases it occurs as part of more complex intergrowths containing a large number of platinum group minerals. In reflected light majakite appears greyish white, but it is lilac-grey when intergrown with native silver, distinctly rosy with a soft lilac tint with polarite, and greyish white with a greenish tint with stannopalladinite (AM 62.1260). Associated minerals include chalcopyrite, talnakhite, polarite, stannopalladinite, silver, iron-bearing platinum, sperrylite and other platinum group minerals (HOM).

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