How can heavy-liquid testing help determine whether a valuable mineral can be separated from an ore?

Heavy-liquid testing is a critical diagnostic tool in mineral processing used to evaluate the feasibility of separating valuable minerals from an ore. By suspending a single-sized fraction of ground ore in a liquid with a high specific gravity, metallurgists can observe how particles behave based on their density.1

In this process, particles with a lower density than the liquid float, while those with a higher density sink. This allows the sample to be separated into distinct fractions of similar density and composition. Once these fractions are isolated, researchers can perform chemical analysis or microscopic examination of polished sections to identify the presence and concentration of valuable mineral components.1

This testing helps determine whether the density differences between the target mineral and the surrounding gangue are sufficient to justify using gravity separation methods, such as jigging or the use of shaking tables, to achieve effective concentration.21