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Brand: National Geographic
Grow a glow-in-the-dark crystal and have it ready to display in just a few days.
The seed rock contains phosphorescent pigment. Charge it under sunlight or a lamp for a couple of minutes and it glows in the dark.
Mix the crystal powder into water, set the seed rock inside, and check back throughout the day as crystals build up on the surface.
The included magnifying glass lets your child observe crystal structure up close as it develops: tiny formations visible day by day.
A genuine fluorite crystal to compare to the crystals you grow and to add to your rock collection.
The full-colour learning guide explains how crystals form in nature and what makes each mineral grow in a different shape.
The activity booklet extends the fun beyond the experiment with 10 games, mazes, and challenges covering crystals and geology.
Mix the solution, place the seed rock inside, and check back throughout the day. Crystals start appearing within a few hours and keep growing for two or three days. By the end, the rock is covered in a sparkling crust that glows in the dark. The fluorite specimen gives children something real to compare it against: a crystal nature built over thousands of years, next to one they grew in a few days.
Everything included. Crystals form in a few days. Real fluorite specimen to keep.
