Rock & Gem

Your compact guide to more than 450 rocks, crystals, gemstones, and fossils Explore the treasures of the Earth -sparkling crystals, vibrant gemstones, and age-old fossils-with this illustrated guide that's sure to captivate every rockhound and budding gemmologist. From primeval origins to their astonishing modern-day uses and appeal, this is the ultimate portrait of Earth's geological riches. Also included is a focused look at other precious materials often prized for their beauty, such as amber