From this book, readers will learn how a variety of stones are formed, and learn to distinguish between them. The tips given here will help young geologists put together an interesting and beautiful collection. A fascinating and colorful book will introduce the child to the outside world, expand his horizons and arouse interest in knowledge. The fabulous ones are included in the long assortment line of the Children's Encyclopedia series, which is distinguished by excellent printing performance, interesting content, modern design, and vivid photo illustrations.