niccolite

Nickeline, a principal ore of nickel that is also known as niccolite, weathers at the surface into a green mineral (annabergite) that resembles malachite.

Allegiance Mining are planning to open pit mine niccolite and pentlandite, copper, gold and platinum minerals from small deposits on Melba Flats.

Meanwhile, Miller had examined the samples Gibson sent him, and was disappointed to find that only the surface had any niccolite, the interior being mostly cobalt of little commercial value.

Gibson identified the mineral in the samples as niccolite, a nickel-bearing mineral, which was intensly interesting to the Bureau after finding the deposits in Sudbury in 1883.