What category do elements 57 through 71 belong to?

Elements 57 through 71 belong to the category of lanthanides, which are a series of 15 chemical elements in the Periodic Table from lanthanum (La) to lutetium (Lu). They are known for their similar properties and are often found in rare earth minerals. Lanthanides are primarily used in various applications, including manufacturing strong magnets, phosphors for lighting, and catalysts in petroleum refining.