Price: ~~$16.99~~ - $31.99
(as of Feb 04, 2026 22:00:35 UTC – Details)

From the brand

Winter Favorites

New Products & Best Sellers

Science Kits

Craft Kits

Rock Tumbling Kits

Crystals

Magic Kits

Dig Kits

Your purchase has purpose!

Every purchase helps support the global nonprofit National Geographic Society in its work to protect and illuminate our world through exploration, research, and education.

FAST-GROWING CRYSTALS IN 6 COLORS – Grow blue, red, purple, green, yellow, and glow in the dark crystals! Crystal chemistry has never been so fast (grows in 3 – 4 days), fun, and colorful, making this the perfect educational activity or gift!
GROWING IS EASY – Easy-to-follow instructions and the 2 included silicone growing chambers make growing your crystals easier than ever!
NIGHT LIGHT DISPLAY – Show off 5 of your favorite home-grown crystals in the USB-powered (cable included) light-up display! This fun kids STEM activity can help inspire a lifelong love of science and learning.
INCLUDES REAL CRYSTAL SPECIMENS – Start or expand your rock collection with 4 real gemstone specimens: rose quartz, fluorite, blue calcite, and quartz geode. Learn about the gemstones in the kit with the included full-color Learning Guide.
AWARD-WINNING PRODUCTS – Blue Marble, winner of the Toy Association’s prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!