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Dink and his friends use their detective skills to locate a giant emerald missing from a statue delivered to Uncle Warren's museum in New York City.

After Jack Frost steals the seven jewels from Queen Titania's crown, Amy needs to recover the magic amethyst quickly since it controls the power to make things disappear.

Provides descriptions and annotated photographs of over 130 varieties of cut and uncut stones, organic gemstones, and precious metals, and includes crystal structure, composition, and hardness indicators.

This book introduces the several ways that crystals form and describes crystals that are used as gems.

An introduction to geology that uses full-color photographs and easy-to-read text to describe the different properties of gems.

Jasmine tries to break the spell that has turned all of Agrabah's fruit and water into jewels.

Presents overviews of the universe and Earth's origins, how rocks and fossils are formed, and what minerals are; profiles hundreds of kinds of rocks, minerals, and fossils; and discusses related places and topics such as Stonehenge, Devil's Tower, gem cutting, and the Hope Diamond.

On a science class trip to a local cave, Edward "Egg" Garrison and his friends are confronted by the mystery of a faked cave-in.

Asks the reader to choose the plot path of a story in which the powerful jewels of an ancient African tribe are stolen from a Paris museum and three cousins must decide whether to risk their lives to get them back.

Describes in simple language the characteristics and uses of minerals and gems.

Tiana is asked by Mama Odie to find a missing jewel.

A guide to gemstones, with over fifteen hundred color photographs, that showcases precious and semiprecious stones in their rough, natural, polished, and cut renditions and provides information on formation, physical properties, structure, and characteristics.

An identification guide to the most common kinds of rocks and minerals that describes and illustrates their physical and chemical properties, their origin, their geologic and economic significance, and where and how to collect them.