Method of rapidly cooling an experiment that involves molten rock

One method of rapidly cooling an experiment that involves molten rock. The volcanic material is dropped from inside the furnace (at ~1000 °C or 1830 °F!) down a vertical tube and into a bulb of room-temperature water. This process, called ‘quenching,’ is similar to the rapid cooling of volcanic material during an eruption. This sequence of images, taken by Behnaz Hosseini in the Experimental Petrology and Geochemistry Laboratory at the University of Oregon in September 2022, spans about one second.