National Geographic Carded Glow-In-The-Dark Crystal Lab

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The National Geographic Glow-in-the-Dark Crystal Lab is an easy and fun way to grow a crystal at home that glows in the dark! Simply mix the crystal-growing powder in water, add your seed rock, and in just a few days you’ll have an amazing crystal! Easy-to-follow instructions and a full-color learning guide are also included. *Explore the world of geology and crystal science *Fast-growing crystal-growing powder results in a crystal in as little as 3 days. *Seed rock is the glow-in-the-dark element, the crystal itself is white. Kit Includes 1 Bag of Crystal-Growing Powder (3. 35 oz / 95 g) 1 Glow-in-the-Dark Seed Rock 1 Learning Guide with Instructions Product Dimensions (hxwxd): 20. 32cm x 12. 6cm x 4. 1cm

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