Answer: Leftover materials from processing of mined ore
Notes: The central government has announced India’s first tailings policy to guide recovery of critical minerals from both primary sources and secondary sources like mine dumps and tailings. Tailings are leftover materials produced after processing mined ore. They contain finely ground rock, unrecoverable or uneconomic metals, chemicals, organic matter, and liquid waste from extraction processes. Tailings usually exist as a liquid slurry formed during crushing, grinding, and processing of ore.
