This Activity Kit Contains 20 Types of Rocks Specimens, Streak Plate, Glass Plate, Copper Plate, Iron Plate, Garnet Board, Knife, Iron Nail, Magnet, Hand Lens, Folded Lens, Acid Drop Bottle (Empty) with Instruction Manual, Rocks / Minerals Worksheet & Rocks / Minerals Crossword Game Chart all neatly packed in a Compartment Box. This Collection contains 20 Types of Basic Rocks Specimens of Igneous, Sedimentary & Metamorphic Rocks Types. The Rock Specimens include Basalt, Gabbro, Granite, Obsidian, Pegmatite, Pumice, Anthracite, Gneiss, Marble, Quartzite, Serpentine, Slate, Chalk Lumps, Conglomerate, Diatomite, Flint, Lime Stone, Rock Salt, Sand Stone & Shale etc.