Kick-start your very own rock collection with the 36 stones. Then use the included crystal powder and mold to grow a geode formation. Collect rocks and conduct experiments, such as a scratch test and float test, to discover their hidden properties. You'll even learn how to make your very own rock tumbler. Use the fact-filled book to keep exploring the world around you!
Includes: 36 rocks, display tray, crystal powder, geode mold, plaster, magnifying glass.
Size: 8" x 11.75". Ages: 8 years+
