This full-colour, laminated field guide is your introduction to the beauty and wonder of the gemstones found in the Pacific Northwest, a region famous for its variety and quality of earth treasures. From purple amethyst, carnelian, chalcedony, black and white onyx and emeralds to sodalite, sapphire and many more valuable stones -- discover what lies in the rich geology just below your feet. This convenient brochure will help you to develop a keen eye for spotting gems in the rough and become more knowledgeable about local gemstones that are the equal of any in the world.