Rock On! Gems: Earth's Most Valuable Treasures!

A dazzling visual guide to precious and semiprecious gemstones. It is a must-have for any true rock hound. Every page is filled with cool facts, trivia, strange-but-true myths and stories, and breathtaking full-page images of the most precious raw materials known to humankind This book also comes with four gems to get you started on your quest for tracking down the most expensive and sought-after materials on Earth. Gems include: amethyst; crystal quartz; carnelian; lemon jade.