<p>Compact and easy-to-use, <i>Nature Guide: Gems</i> provides a thorough introduction and detailed, clearly illustrated profiles of hundreds of examples of precious metals, cut stones, and organics. Packed with stunning photography and key information provided by expert contributors, <i>Nature Guide: Gems</i> is carefully structured, with catalog entries organized into easily understood groups that the newcomer will have no difficulty in navigating and the more experienced reader will appreciate.</p>