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Formula: (NH4)2Ni(SO4)2.6H2O
Hydrated normal sulphate, picromerite group,
nickel-bearing mineral
Crystal System: Monoclinic
Specific gravity: 1.85 calculated
Hardness: 2½
Colour: Greenish blue to emerald-green
Solubility: Readily soluble in water
Environments
Localities
At the type locality, the Talnakh Cu-Ni deposit, Noril'sk, Putoran Plateau, Taimyr Peninsula, Taymyrskiy Autonomous
Okrug, Krasnoyarsk Krai, Russia, nickelboussingaultite forms greenish-blue (like
chrysocolla) films resembling sinter (a hard incrustation on rocks or
on the ground by precipitation from hot or cold mineral waters) on
pentlandite-chalcopyrite
ore. It is found in underground works, where this ore was first oxidised to
limonite,
upon which the nickelboussingaultite was deposited. It is developed mostly near old wooden timbers and locally
has spread onto these
(AM 71.1545).
Associated minerals include pentlandite,
chalcopyrite and limonite
(Mindat).
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