Create brilliant underwater crystals with this kit! Place your colorful rocks (metallic salt crystals) into the magic solution (sodium silicate dissolved in water) and watch as they transform into colorful crystal formations. In six hours, repeat these steps and watch in awe as your rocks expand into colorful stalagmite-like towers. Each kit includes a sticker sheet.

• Watch colorful crystal formations grow before your eyes!
• Rocks grow to different heights, up to 4" tall.
• Crystals start growing in just 10 minutes.
• Ages 10+