A mesmerising journey into the heart of Emerald. Discover the microscopic beauty of nature through Gemmology. Exploring emeralds from more than ten different localities, one of Earth's most precious gemstones becomes an eternal window into the past when viewed under a microscope. Gathering evidence collected from timeless crystals to create understanding of what happened in a distant past is the foundation of Gemmology. This is what this book is about: A reference guide of evidence frozen in time inside each gemstone and compared by country of origin.