gems

They re sparkly with varied hues. You might see them in a beautiful necklace, a breathtaking ring, or even in a computer. They re gems. Gems are some of Earth s most precious resources, and some of them are millions, or even billions, of years in the making. This detailed text, accompanied by colorful photographs, informs readers about the remarkable processes that take place under the surface of Earth to form different kinds of gems. They ll also learn how some gems are mined, while others are replicated in laboratories. Future lapidaries will also find out how they might find and polish gems for themselves. Full-Color Photographs, For Further Information Section, Glossary, Graphic Organizers, Index, Sidebars, Web Sites.

"Shows how to read the landscape for clues and identify different rock types--from dazzling diamonds to grainy sandstone. ... data boxes provide short facts to help with quick identification"--Amazon.com.

Describes the formation and characteristics of gems and crystals.

A visual guide that examines rocks, gems, and other minerals.

A revised edition in a series of comprehensive, nature-based field guides in a pocket-size trim with clear, full-color photography for easy subject identification.

Text and color photographs explore the chemical makeup of garnets, how they are mined, and which kinds of rocks they are usually found under.

An account of how eight jewels shaped the course of history using economics, science, and history to point out how jewels have birthed cultural movements, launched political dynasties, and started wars.

Explains what gems are and how they form, and looks at different types of gems.

Describes the difference between rocks, minerals, and gems. Explains how different types of rock were formed. Describes the properties that are used to identify minerals, and explores different places where rocks and minerals are found. Shows how rocks are used every day, sometimes in new ways.