The National Geographic Lab is an easy and fun way to grow an amazing crystal at home that glows in the dark! All you have to do is mix crystal culture powder with water and add base rock, and in just a few days you will have an amazing crystal!
This set also includes a simple instruction manual and a colorful study guide.

National Geographic Glow-in-the-Dark Crystal, creative toy – features:
• Discover the fascinating world of geology and crystals.
• Fast-acting crystal culture powder yields crystals in as little as 3 days.
• The glow-in-the-dark element is the base rock, and the crystal itself is white.

National Geographic Glow-in-the-Dark Crystal, creative toy – contents:
1 pack of crystal culture powder (95 g)
1 glow-in-the-dark base rock
1 manual with instructions