"Investigate Gems introduces readers to what gems are and how they form, including mineral gems and organic gems. Learn about crystal systems, imitation and synthetic gems, cultured pearls, how gems are used, and their historic importance. A geology-themed project provides the opportunity for hands-on experience. Other features include a table of contents, fun facts, infographics, sidebars, map, and an index. Aligned to Common Core Standards and correlated...

Describes how crystals form in nature, how crystals are grown artificially, and how crystals are used in industry. Numerous color photos with text identify the various gemstones. "Discover the beauty of emeralds, rubies, lapis lazuli, jade, silver, and gold in this glittering collection of precious stones and metals. Learn where crystals can be found, how they form, and what they are used for--from dazzling jewelry to diamond-cutting tools and the...

"My Book of Rocks and Minerals is filled with fascinating facts about and amazing images of rocks, minerals, gems, and fossils from the deepest caves to outer space. Features introduce different categories, from crystals to glow-in-the-dark minerals, and illuminating images provide a closer look and show amazing geological formations. Kids can take their fascination even one step further and use the catalog and activity pages to help them collect...