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Rare earth elements (REEs) are a group of 17 elements, including the lanthanides plus scandium and yttrium, that are vital to modern technology due to their unique electronic, optical, and magnetic properties. Despite their misleading name, most REEs are relatively abundant in the Earth's crust, with cerium being as common as copper. The real challenge lies in their dispersed occurrence, making concentrated, economically viable deposits rare. These elements are essential for applications such as powerful magnets in electric vehicles and wind turbines, phosphors in lighting and displays, and catalysts in industrial processes. Each element has distinct properties and market dynamics, leading to significant differences in value and strategic importance. Common misconceptions include the belief that rare earths are scarce, that China controls all deposits, and that all REEs are equally valuable. In reality, China dominates the processing and manufacturing stages rather than holding most of the world’s reserves, and the market for each element varies widely. Environmental challenges primarily stem from processing, not just mining, due to the need to handle radioactive materials and chemical waste. While alternatives to REEs are being developed, their unique characteristics make substitution difficult for many high-performance applications, underscoring the need for secure and sustainable supply chains. P. Geo. Ricardo A Valls, M. Sc. and Geo Gadfly Valls Geoconsultant ORCID ID- https://orcid.org/0000-0002-5421-0914 Scopus Author ID: 7003369619/35335510700 ResearcherID: S-6604-2018 If you like this content, please "buy me a coffee" https://www.buymeacoffee.com/goldendroplets