Yellowcake is a type of concentrated uranium powder that is produced during the processing of uranium ore. It is typically yellow in color, which is how it got its name. Yellowcake contains a high percentage of uranium, making it a crucial material in the nuclear fuel cycle. After extraction, yellowcake undergoes further processing to convert it into uranium hexafluoride, which can then be enriched for use in nuclear reactors or for the production of nuclear weapons. The handling and transport of yellowcake are strictly regulated due to its radioactive properties.