The influence of equipment settings and rock properties on high voltage breakage

► HV Breakage of 20 different rock types was determined. ► Total energy input is the main variable of influence on product size. ► Larger feed sizes are more amenable to HV breakage. ► Acoustic impedance, tensile strength, quartz content and porosity are related to breakage behaviour of rock types. ► Implications for continuous HV breakage units are discussed.