Illustrated throughout with photographs of these wonderfully colourful minerals. Accompanied by a text from a well-known expert in the field, the book includes

Agates - few other natural formations exhibit the tremendous variety seen in these curiously banded gemstones; no two are exactly alike when it comes to color,

This book provides step-by-step instructions for finding and identifying Lake Superior Agates.

Treasures of the Earth From the author of Collecting Rocks, Gems and Minerals and one of the leading agate collectors in the world, comes this comprehensive gui