Our planet is packed with the most extraordinary rocks, minerals, gems, shells, and fossils - and you'll find them all in this popular children's encyclopedia.

The Rock and Gem Book is full of stunning photography of the world's natural wonders. More than 1,200 full-colour specimens will help you spot sedimentary from sandstone, and metamorphic from marble. The unique qualities of each material are described in-depth, together with their wide-ranging uses in industry, art, architecture, and science.

Feast your eyes on a treasure trove of sparkling minerals and gems that any pirate would envy! Travel back to the prehistoric period to find out how fossils are formed, and see all that remains of dinosaurs and other early creatures. Shell seekers can learn to identify all kinds of finds washed up on the shore.

Get searching around where you live and start your own personal collection, using The Rock and Gem Book as your essential reference guide.