Scientific American Investigates Gems: Set 2

The most beautiful gems have modest starts. Some form in seemingly ordinary rock, others in oyster shells! But the finished products are admired and highly valued. In this rollout of our popular series, a collaboration with Scientific American, readers find out how gems such as diamonds, emeralds, and rubies form as well as more insightful information about them. Each gem's special characteristics are described in inviting and accessible text and supported by stunning photographs highlighting the gem's visual features.

• Geology concepts such as types of rocks and gem-related science vocabulary are emphasized
• Graphic organizers support and reinforce important STEM curricular standards
• Fact boxes offer further information for budding geologists