Nickel
Nickel is normally found as a mineral, and not as a metal in the ground. Sometimes meteorites have nickel and iron metal in them.  The most common nickel mineral is pentlandite. Most of the nickel on Earth is thought to be in the Earth's Earth's outer and inner cores. There are sulfidic and lateritic nickel ores. Philippines mines the most nickel. Other major mining countries are Russia, Canada and Australia. All the older rocks on Earth have some rare metals. They are got by mining where the ores are most plentiful.