Columbite-tantalite, often referred to as coltan, is a mineral composed of two key elements: niobium and tantalum. It is primarily found in regions like Africa, where it is mined for its valuable components. Tantalum is particularly important in the electronics industry, as it is used in capacitors and other components due to its ability to withstand high temperatures and corrosion. The extraction of columbite-tantalite can have significant environmental and social impacts, especially in areas where mining practices are unregulated. Efforts are ongoing to promote responsible sourcing of coltan to ensure that the benefits of its extraction do not come at the expense of local communities or ecosystems.