Where to Find Copper, Nickel, and Cobalt Deposits in Canada
Where to Find Nickel and Cobalt in Ontario. The most plentiful nickel ore at present known is that of the Sudbury area, Ontario. It is a mixture of pyrrhotite and copper pyrites, with smaller quantities of pentlandite (a sulphide of nickel and iron) and polydymite (a sulphide of nickel).