Emeralds are the most expensive gems in the world, but it takes a lot of time and effort for them to get that way. Readers will discover many interesting facts about this beautiful May birthstone that takes millions of years to form. Vibrant photographs capture emeralds at all stages, from the mines to beautiful pieces of jewelry. Detailed Table of Contents, Fact Boxes, Fact Sheets, For Further Information Section, Further Reading, Glossary, Index, Web Sites.
General Note
Includes glossary.
Content Note
What are emeralds? - Where are emeralds found? - What do emeralds look like? - At the mine - Open-pit mining - Making emerald jewelry - The grinding wheel - What makes emeralds valuable? - Really rare emeralds - The emerald mine.