Grow amazing glowing crystals in your own home! National Geographic's glow-in-the-dark crystal growing kit brings you a fun and fascinating science experiment. With a learning guide packed full of interesting crystal facts and a real fluorite specimen included, you get the most comprehensive crystal growing kit on the market! this science kit includes: growing powder, seed rock, stir stick, real fluorite crystal, National Geographic learning guide with instructions this is the perfect project for kids of all ages and serves as a great introduction to geology and chemistry. This kit from National Geographic will spark a love of science in your child that will last a lifetime. get your glow-in-the-dark crystal growing kit today and discover miraculous glowing crystals!