National Geographic Jumbo Crystal Growing Kit - Grow Your Own Giant Glow in The Dark Crystal in a Few Days, Science Kit, Grow Crystals for Kids, STEM Toys (Amazon Exclusive)

ASTOUNDING CRYSTAL MAKING KIT FOR KIDS! Grow an awesome crystal in just a few days that's up to 3x larger than those in our other crystal growing labs. You'll also get a fascinating fluorite specimen! This is seriously fun geology for kids!