National Geographic Break Open 10 Premium Geodes – Includes Goggles, Detailed Learning Guide & 2 Display Stands – Great Stem Science Gift for Mineralogy & Geology Enthusiasts of Any Age

Amazon.com Price: $24.99 (as of 31/12/2019 17:20 PST- Details)

DISCOVER CRYSTAL TREASURE when you break open these rocks to find amazing crystals inside!
COLORFUL VARIETY of hand-selected geodes for interesting, vibrant crystals
100% NATURAL GEODES may be as big as a tennis ball or as small as a ping-pong ball and are the perfect size for kids