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Formula: (Fe,Cu)8(Pb,Cd)S8
Sulphide, pentlandite group,
pentlandite supergroup,
cadmium-bearing mineral
Crystal System: Isometric
Specific gravity: 4.72 calculated
Hardness: 4
Streak: Light greyish yellow
Colour: Yellow-grey
Environments
Shadlunite occurs as tiny grains and veinlets cutting
copper-nickel sulphide ores. Associated minerals
include manganoshadlunite, cubanite
and talnakhite
(HOM).
Localities
At the type locality, the Mayak Mine, Talnakh Cu-Ni Deposit, Noril'sk, Putoran Plateau, Taimyr Peninsula, Taymyrskiy Autonomous
Okrug, Krasnoyarsk Krai, Russia, shadlunite occurs as irregular grains, hundredths of a mm to 0.4 mm in size and as
veinlets less than 0.1 mm, mostly in cubanite, also in
talnakhite ores. Associated minerals include
talnakhite, manganoshadlunite and
cubanite
(Mindat).
Shadlunite from the Mayak Mine - Image
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