Illustrated throughout with photographs of these wonderfully colourful minerals. Accompanied by a text from a well-known expert in the field, the book includes both a detailed introduction to the geology of agates and a comprehensive guide to the agates of the world.

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, pattern or shape. And though they are found on every continent, many well-known and significant varieties are present in North America. This book features more than 60 of the most famous, most valuable and rarest agates from Canada, the United States and Mexico. Intriguing, informative text explains the fascinating differences between agates, while compelling, true-to-life photos show each agate's special beauty.

The definitive book on Lake Superior's agates is here. If you're a casual rock collector, you will find Agates of Lake Superior fun, interesting and beautiful. If you're a more advanced hobbyist, you will appreciate this professional and scientific resource. The book provides a thorough examination of Lake Superior's strange and unique agate varieties, as well as a critical look at agate formation theories, tips on how to find and identify agates, where to look for them and how collectible your agates may be.

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 guide to collecting agates and jaspers, the most sought after types of collectible rocks on the market today. Designed with all beginners in mind, yet filled with valuable technical information for advanced enthusiasts, Collecting Agates and Jaspers helps rockhounds discover these treasures of North America. • The only book on agates and jaspers to offer values. • Featuring nearly 700 beautiful color pictures, descriptions and technical information, the book provides an easy-to-use, quick reference format perfect for home and field. • Organized by U.S. states and provinces in Canada and Mexico, with introductions pinpointing each area's best spots and what you can find there.

Beginner or expert, this is your guide to Lake Superior Agates. The book features four pages of photos and facts for every type of agate found in Michigan, Minnesota, Wisconsin and southern Ontario. The easy-to-use format means you'll quickly find what you need to know and where to look, while the authors' photographs depict the detail needed for identification - no need to guess from line drawings. Identify your finds quickly and easily with this all-in-one resource!