National Geographic’s Blue Marble Giant Crystal Growing Lab allows children to experience the excitement of growing crystals on a grand scale. With this kit, they can grow two enormous crystals, three times larger than standard crystals, in just a few days. The kit includes everything needed to get started, plus a real crystal specimen for comparison, making it a fascinating project and an introduction to the science of crystallization.

Includes:

• (1) Packet of purple crystal growing powder (380g)
• (1) Packet of blue crystal growing powder (380g)
• (2) Gypsum seed rocks
• (1) Wooden stirring spoon
• (1) Magnifying glass
• (1) Blue calcite sample
• Instruction guide

Recommended Age: 8 years and up