Blast Hole Sampling

The collection of representative drill cuttings from blast holes for grade determination and geological characterisation, providing real-time information about ore grade and lithology at the bench level. Blast hole samples are collected at regular intervals as the hole is drilled and submitted for rapid assay. In iron ore and gold mining, blast hole sampling drives grade control decisions, directing material to ore or waste stockpiles. Sampling protocols, sample collection, and assay turnaround time are critical to grade control accuracy and efficiency.