Terms

Graph showing metallurgical recovery versus ore grade, particle size or reagent dosage. Used for optimisation.

Measure of oxidation–reduction conditions in fluids or tailings. Controls metal solubility and leaching behaviour.

A major rock-forming feldspar group ranging from albite to anorthite. Dominant in igneous rocks and influential in alteration mineral assemblages.

The time period over which mine planning and scheduling decisions are optimised (short-, medium- or long-term).

The percentage of total operating time during which a processing plant is available for production, excluding downtime.

The proportion of metal recovered from feed through the processing circuit. Key driver of project economics.

Ratio between actual processing time and total potential operating time, reflecting operational efficiency.

Geological theory explaining the movement of lithospheric plates and associated processes such as volcanism, earthquakes and mineralisation.

Six metallic elements (Pt, Pd, Rh, Ru, Ir, Os) with high catalytic properties, sourced mainly from layered mafic intrusions and Ni-Cu-PGE sulphide systems.

Cylindrical volcanic conduit formed by solidified magma in a vent. May serve as a pathway for mineralising fluids.

Coarse-grained intrusive igneous rock formed by slow cooling at depth, such as granite or diorite.

Concentrations below which a substance is not expected to cause environmental harm. Used in water-quality assessments around mines.