A jig is a mining device used to separate minerals from ore based on differences in density. The jigging process involves pulsating water that causes the heavier minerals to settle and the lighter waste material to rise. Jigs are important in mineral processing for recovering valuable minerals and improving ore grades.
Reference: Wills, B. A., & Finch, J. (2015). Wills’ Mineral Processing Technology: An Introduction to the Practical Aspects of Ore Treatment and Mineral Recovery. Butterworth-Heinemann.