Formula: Pd2CuSn
Alloy, palladium-bearing mineral
Crystal System: Orthorhombic
Specific gravity: 11.1 measured, 10.7 calculated
Hardness: 4
Colour: White, pink with a slight violet tint
Common impurities: Pt,Ag,Sb

Plutonic igneous environments
Hydrothermal environments

Cabriite occurs in massive mooihoekite ore, and also in galenachalcopyrite veins. Associated minerals include mooihoekite, sperrylite, geversite, putoranite, paolovite, talnakhite, sobolevskite, polarite, froodite, auricupride, silver, cassiterite, stannite, chalcopyrite, valleriite, galena, sphalerite and magnetite (HOM).


At the type locality, the Oktyabrsky Mine, Talnakh Cu-Ni Deposit, Noril'sk, Putoran Plateau, Taimyr Peninsula, Taymyrskiy Autonomous Okrug, Krasnoyarsk Krai, Russia, cabriite is characteristically found in massive copper-nickel sulphide ores composed mainly of metal-rich minerals of the chalcopyrite group, such as mooihoekite, putoranite and talnakhite. The cabriite usually occurs as individual grains up to 200 microns in size, but it is sometimes closely intergrown with polarite, sobolevskite, putoranite, sperrylite, paolovite and other platinum group minerals. Cassiterite and stannite also occur in association with cabriite and other palladium-tin-copper minerals in galena-chalcopyrite vein ores. It appears that cassiterite and cabriite were formed contemporaneously. Stannite also occurs between the platinum group minerals and the ore-forming sulphides, and probably formed as a reaction rim. Palladium-platinum-tin minerals such as atokite, paolovite and rustenburgite are characteristic of the platinum group element mineralisation in these deposits (CM 21.481-487).
A relatively coarse grain of cabriite was found in a concentrate from the Noril’sk district. It is surrounded by cubanite and chalcopyrite, which are cut by minor veinlets of galena and flanked by mm-scale crystals of sperrylite. The platinum apparently substitutes for palladium, and antimony to a lesser extent for tin. The cabriite contains micron sized rounded blebs of bismuthian geversite. Associated minerals include cubanite, chalcopyrite and sperrylite, and talnakhite and cubanite exsolved from chalcopyrite. The cabriite has a partial rim of native silver. A late-stage origin is suggested for cabriite and an associated gold-silver alloy (CM 40.473-479).

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