Aspiring young geologists will enjoy learning about rocks, minerals, and gems from agate to zircon in this beautiful beginner's encyclopedia that comes with a poster to help kids identify rocks and gems. Did you know that rocks and minerals are all around us and often play a large part in our day-to-day lives? Or that metals like silver can be found in rocks, on their own, or mixed in with other minerals? Discover even more intriguing facts alongside engaging photos in this encyclopedia perfect for aspiring young geologists. The included poster also identifies various rocks and gems for quick reference. From agate to Zircon, get digging and discover the world's most amazing rocks, minerals, and gems in this A to Z guide.