Geodes: Nature's Treasures Kentucky Agate The picture in the lower

The picture in the lower right shows what the material looks like cut and polished

This yellow chalcedony carving

These dolphins are carved from a single piece of Bloodstone

Exact size

Sonora Dendritic Slabs feature maroon dendrites on a blue and tan landscape

Geodes: Nature's Treasures Kentucky Agate The picture in the lowerBy Brad Cross and June Culp Zeitner From the Table of Contents: Chapter 1: What are Geodes? Chapter 2: The Mysterious Formation of Geodes in Igneous Rocks Chapter 3: Inedible Coconuts: Mexican Coconut Geodes Chapter 4: When Geodes are Gems Chapter 5: More Latin Surprises Chapter 6: Geode Curiosities Chapter 7: From Sediments to Glamour Chapter 8: Wonderful Warsaw Chapter 9: Strange Geodes of Indiana Chapter 10: A Few Bonuses Chapter 11: Amethyst