Welcome to nature's
mysterious world of geodes!

In this book two renowned experts share their lifelong passion for geodes and their extensive knowledge of world-class geode deposits as they present the latest theories on the formation and occurrence of these amazing mineral gifts of nature.

• Visit the geode mines of Northern Mexico and Southern Brazil with Brad Cross
• Learn the geode mining process and how the astonishing treasures hidden inside are uncovered.
• Travel with June Culp Zeitner as she explores vast geode deposits throughout the Midwestern United States that provide a recorded history of the ancient seas that once covered the land.
• Discover Florida's ocean harvest of unparalleled agatized geodes.
• Meet the close cousins of geodes - thundereggs, septarians, and concretions.

The most comprehensive book ever written on geodes of the Americas - a definitive reference for serious collectors and a delightful mineral exploration for both experts and novices.

Over 140 full-color photos of geodes that defy description!