Get hands-on learning with the Smithsonian Rock and Gem Dig. Budding geologists can excavate and identify gemstones and minerals while learning how these natural wonders are formed. Excavate and identify Gemstones and Minerals, and learn how rocks and minerals are formed. Includes: 1 Snad Block w/11 Real Gemstones, Minerals or rocks, 1 Mallet, 1 dowel, 1 Pair of goggles, 1 Steak Plate, 1 Magnifying Glass, 1 Brush and Color Poster with instructions.