Agates: Treasures of Earth

The book describes:

• Names of agates--mineralogical, geological, local, trade, trivial
• Properties of agates--e.g., color, wall-banded, level-banded, cracked, thunder eggs
• Sources of agates--e.g., eruptions, lava, sediment, limestone beds, and fissures
• Lapidary--sawing, grinding, sanding, polishing
• Imitations and forgeries of agates
• Uses of agates through the ages, with beautiful photographs of artifacts and jewelry
• Early writing and collections
• Use of agates in science and technology
• Collecting
• National and regional maps showing agate-producing areas.