Gold panning and gem mining. Prospecting tool of classifier used to sift and sort material. Classify mineral rich soil, dirt, pebbles and stones. Prepare soil to pan. Fun, adventure and recreation. Shutterstock Image - Gold panning and gem mining. Prospecting tool of classifier used to sift and sort material. Classify mineral rich soil, dirt, pebbles and stones. Prepare soil to pan. Fun, adventure and recreation. - ID: 712581325