Material rejected from a mill after the recoverable valuable minerals have been extracted
Ground rock remaining after particular ore minerals (e g uranium oxides) are extracted
Sludge, mineral residue and waste water (apart from final effluent) resulting from ore extraction or processing and the slag from pyrometallurgical operations
Material rejected from a mill after most of the recoverable valuable minerals have been extracted
A generic term for wastes or residues of rock from mining or milling operations that typically contain high concentrations of heavy metals Tailings are composed of sand-sized particles consolidated in large piles containing millions of tons of wastes and often covering hundreds of acres of land at mining and milling sites
Mining waste left after mechanical or chemical separation of minerals from crushed ore
material rejected from a treatment plant after the valuable minerals have been recovered