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.

• 11 x 3 x 12 inches
• Explore the world of crystal science.
• Grow 2 extra large crystals, 3x larger than our standard crystal growing kits
• Crystals grow in 5-7 days, can grow in as little as 4 days in warmer weather

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.

• 11 x 3 x 12 inches
• Explore the world of crystal science.
• Grow 2 extra large crystals, 3x larger than our standard crystal growing kits
• Crystals grow in 5-7 days, can grow in as little as 4 days in warmer weather