- An all-time bestseller, the discover rocks and minerals kit features lightweight dig block material. - Each block contains five genuine examples of rocks and minerals. - Identify each piece from pictures on the box. - Each kit comes with a chisel and a brush. Includes: 12 dig kits with excavation tools Products marked with the STEAM tag are designed to spark children's interest in Science, Technology, Engineering, Art, or Math, and grow their cognitive skills in these areas. Kids | Children | Education | Enrichment | Nature | Wildlife | History | Souvenir | Museum | Adventure | Archaeology | Geology