COLLECTING AGATES AND JASPERS OF NORTH AMERICA

"Collecting Agates and Jaspers of North America" by Polk is an inclusive, visually stunning, and easy-to-use book. As the owner of a rock shop, it's helpful to have a resource that informs customers about the origins of different materials. The color photos in this book are exceptional. Very well-written, easy to understand. This book is a must-have for agate and jasper identification, it also gives values of each type of agate, although you will find differing prices with more research.