"Grow two massive crystals with the National Geographic Giant Crystal Growing Lab! These crystals are three-times larger than our standard crystals and grow fully in just a few days. Your kids will be astounded as they watch these crystals take shape and will learn the science behind crystal formation in our detailed， full-color learning guide. This kit also includes a magnifying glass and real crystal specimen.
- Everything you need to grow a giant blue and purple crystal
- Simply mix crystal-growing powder with hot water， add the seed rock and watch as your crystals grow in just a few days
- A detailed learning guide provides insight into the science of crystal growth
- A real crystal specimen is included
- Imported
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