Get the stone-cold facts on rocks! Packed with 29 unique rocks, gems, and minerals, this is the perfect kit to start or expand a rock collection. Build a color-changing light-up display with an agate slice: use it as a lamp, or study the stones up close with the included magnifying glass. Learn fun facts about each rock in the fully colored 32-page book including 6 experiments and activities with easy-to-find ingredients from home. Need to Know: 32-page book with details on every rock included, plus 6 additional activities, promotes earth science and the study of minerals. 29 unique rocks, gems, and minerals from rainbow-flecked crystal opal to metallic gold radial pyrite. Use the color changing display light to make a shining crystal agate slice lamp. 3AA batteries not included Comes with: Blue Agate Slice + 28 new rocks, materials to build a display light, magnify glass.