Give your child the chance to become a geologist at home with the National Geographic Gemstone Dig Kit! They will search through our gemstone-shaped dig brick to discover genuine specimens. Then they’ll learn the science of gemstones in our full-color learning guide! This unforgettable, hands-on STEM kit provides the thrill of discovery and gemstone specimens kids can treasure forever! National Geographic STEM kits make learning fun for your child. The hands-on thrill of finding gemstones is enhanced by our full-color learning guide, packed with information on each of the specimens they discover. Makes a great STEM gift for boys and girls.