Source of nickel

Nickel is the 23rd most abundant element in the earth's crust. It is somewhat abundant but scattered, accounting for one percent of 1% of igneous rocks. Nickel metal is found in meteorites (along with some other elements). It is believed that molten nickel, along with iron, formed the central sphere that makes up the Earth's core. It is found in most meteorites, especially in iron meteorites or siderite alloyed with iron. Its average concentration in seawater is 0.56μg/mL.

Nickel is one of the main components of the Earth's core, accounting for about 7%. There are many types of nickel ore. One is the main ore of nickel, which is called bentonite (NiS? 2FeS) Chemicalbook, which is iron/nickel sulfide. The other is a mineral called nicotinite (NiAs), which was discovered in 1751 and was first discovered in the mining areas of Sweden.

By far the largest nickel mining area is in Ontario, Canada, where it was recovered from a giant meteorite believed to have crashed into the Earth. Since both the Earth and meteorites formed in the early stages of the solar system, large deposits of nickel are one reason for the theory that the Earth's core is molten nickel and iron. Some nickel deposits have also been discovered in Cuba, the Dominican Republic and Scandinavia. Traces of nickel are found in soil, coal, plants and animals.