gems

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

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.

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.

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

Amy, the amethyst fairy, does not know what to do when the magic amethyst disappears.

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.