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.