Nickel laterite is a type of ore that contains high levels of nickel, primarily formed through the weathering of ultramafic rocks. These ores are typically found in tropical regions, where warm temperatures and heavy rainfall promote the leaching of minerals. Nickel laterites are important sources of nickel, which is used in various applications, including stainless steel production and battery manufacturing. The two main types of nickel laterite ores are limonite and saprolite. Limonite is rich in iron and is usually found in the upper layers, while saprolite contains higher nickel concentrations and is located deeper in the soil. Mining and processing nickel laterites can be more complex than other nickel sources, but they are essential for meeting global nickel demand.