Hans j steinberg (13 Ergebnisse)

Taschenbuch. Zustand: Neu. Neuware.

Taschenbuch. Zustand: Neu. Neuware - The Emerald Bible is a comprehensive guide to one of the world's most important gemstones. It explains what emerald is, how it forms, where it is found, how it is graded, treated, identified, cut, valued, bought, sold, and used in jewellery.The book covers the major producing regions, including Colombia, Zambia, Brazil, Ethiopia, Afghanistan, Pakistan, Russia, and Zimbabwe, with detailed attention to famous sources such as Muzo, Chivor, Coscuez, and Kafubu. It examines color, clarity, the emerald jardin, inclusions, cutting, carat weight, treatments, synthetic emeralds, simulants, laboratory testing, geographic origin, and modern valuation.Historical chapters trace emerald from ancient Egypt and Cleopatra through the Spanish conquest of South America, Mughal India, European royal collections, famous historic jewels, and the development of the modern international trade. Practical sections explain how to inspect emeralds, understand laboratory reports, recognize treatment disclosures, avoid common pricing traps, evaluate auction results, and care for emerald jewellery.Written as a factual reference rather than a romanticized account, The Emerald Bible is intended for collectors, dealers, jewellers, gemologists, students, auction professionals, and anyone seeking a detailed understanding of natural emerald.…

Taschenbuch. Zustand: Neu. Neuware.

Taschenbuch. Zustand: Neu. Neuware - Discover the complete world of amber with The Ultimate Guide to Amber-a comprehensive reference covering fossilized tree resin, Baltic amber, Dominican amber, amber fossils, gemstone identification, collecting, jewellery, valuation, and scientific discoveries.Amber is far more than a beautiful golden gemstone. Formed from ancient tree resin over millions of years, it preserves an extraordinary record of prehistoric life, including insects, plants, feathers, and even small vertebrates. It has fascinated civilizations for thousands of years, inspired myths and legends, adorned royalty, and continues to be one of the world's most unique organic gemstones.Whether you are a collector, jeweller, gem enthusiast, geology student, fossil lover, or simply curious about this remarkable natural material, The Ultimate Guide to Amber provides an in-depth exploration of every aspect of amber-from its origins in ancient forests to its place in modern science and jewellery.Inside you'll discover: - How amber forms over millions of years from tree resin- The differences between amber, copal, and synthetic imitations- Baltic, Dominican, Burmese, Mexican, and other important amber varieties- Rare colours including blue, green, red, and white amber- The fascinating world of fossil inclusions, from insects to dinosaur-age discoveries- Amber's role throughout ancient civilizations, mythology, religion, and trade- How amber is identified, tested, and authenticated- Common treatments, enhancements, reconstructions, and counterfeit materials- Buying, valuing, and collecting amber with confidence- Amber jewellery, carving techniques, restoration, and long-term care- The latest scientific research and future discoveries in paleontology and gemologyWritten in a clear and accessible style, this guide combines geology, history, gemology, archaeology, paleontology, and practical collecting advice into one definitive volume. Complex scientific concepts are explained in straightforward language, making the book suitable for both beginners and experienced collectors.Whether you want to identify genuine amber, understand what determines its value, learn about ancient fossil inclusions, or simply appreciate one of nature's most extraordinary creations, this book offers the knowledge and insight to become a more informed enthusiast.If you've ever wanted to understand everything there is to know about amber, this is the guide you've been looking for.…

Taschenbuch. Zustand: Neu. Neuware.

Taschenbuch. Zustand: Neu. Neuware.

Taschenbuch. Zustand: Neu. Neuware - Jeremejevite, rare gemstones, gemstone collecting, mineral identification, gemology, gemstone investing, and crystal collecting-if you want to learn everything there is to know about one of the world's rarest and most elusive gemstones, this comprehensive guide is for you.Jeremejevite is among the most coveted collector gemstones on Earth. Exceptionally scarce, naturally beautiful, and found in only a handful of locations worldwide, it has fascinated gemologists, mineral collectors, jewelers, and investors for decades. Yet despite its rarity, surprisingly little reliable information exists in one place.The Ultimate Guide to Jeremejevite brings together decades of gemological knowledge in a single, authoritative volume.Written by gemologist and mineral specialist Hans J. Steinberg, drawing on over 40 years of experience, this book explores every aspect of Jeremejevite-from its discovery in Siberia to the world-famous Namibian deposits that produce today's finest gemstones.Inside you'll discover: - What Jeremejevite is and why it is one of the world's rarest gemstones- Its fascinating history and geological formation- Physical and optical properties explained in plain English- Every major source, including Namibia, Russia, Madagascar, Myanmar, Tajikistan, and Germany- How gem-quality crystals are mined and recovered- The colors, clarity, and characteristics that determine value- How experts identify Jeremejevite and distinguish it from similar gemstones- Treatments, synthetics, and common imitations- Buying advice and how to avoid costly mistakes- Collecting strategies for both crystals and faceted gems- Investment potential, market trends, and auction performance- The future of Jeremejevite and its place among the world's greatest collector gemstonesWhether you are an experienced collector, professional jeweler, gemology student, investor, museum enthusiast, or simply fascinated by Earth's rarest natural treasures, this book provides a detailed yet accessible reference that you will return to for years.If you are searching for the definitive book on Jeremejevite, rare gemstones, gemstone identification, mineral collecting, or gemstone investing, your search ends here.…

Taschenbuch. Zustand: Neu. Neuware - Discover the complete story of the world's most spectacular spinel.Mahenge spinel has become one of the most sought-after gemstones on Earth. Renowned for its breathtaking neon pink, vivid red, hot pink, lavender, and cobalt-blue colors, this extraordinary gemstone from Tanzania has captivated collectors, gemologists, investors, and luxury jewelers worldwide.Written by Hans J. Steinberg, a gemstone expert with over 40 years of experience in the international gem trade, this comprehensive guide explores every aspect of Mahenge spinel-from its geological origins deep within the Earth to its remarkable rise as one of the most valuable modern collector gemstones.Whether you are an experienced gem collector, jewelry enthusiast, gemstone investor, lapidary, jeweler, or someone fascinated by rare natural treasures, this book provides an authoritative and accessible reference unlike any other.Inside you'll discover: - The discovery and fascinating history of Mahenge spinel in Tanzania- The geology and mineralogy behind its legendary colors- How chromium, cobalt, and fluorescence create its famous neon glow- Every major Mahenge spinel color, including pink, red, purple, lavender, orange-pink, and blue- Mining methods, ethical sourcing, and the journey from mine to market- How to judge color, clarity, cut, carat weight, brilliance, and overall quality- Treatments, synthetic spinels, imitations, and how to avoid expensive mistakes- The world's finest Mahenge spinels, famous specimens, auction records, and museum-quality gems- Investing in Mahenge spinel, historical price trends, market cycles, supply versus demand, and long-term outlook- Expert guidance on buying, selling, certification, insurance, storage, and choosing reputable dealers- In-depth explanations of GIA, SSEF, Gübelin, Lotus Gemology, AGL, and other leading gem laboratories- Predictions for the future of Mahenge spinel over the next 20-50 yearsDrawing on decades of professional experience and the latest gemological research, this book separates fact from myth while providing practical advice for both beginners and advanced collectors.If you love rare gemstones, spinel, ruby, sapphire, alexandrite, Paraíba tourmaline, mineral collecting, fine jewelry, gem investing, gemology, lapidary arts, crystal collecting, precious stones, colored gemstones, or natural minerals, this book belongs in your library.Everything There Is to Know About the Elusive Mahenge Spinel is more than a gemstone guide-it is the definitive reference to one of the most extraordinary gemstone discoveries of the twenty-first century.…

Taschenbuch. Zustand: Neu. Neuware - Green diamonds, natural green diamonds, fancy green diamonds, rare colored diamonds, green diamond grading, green diamond value, green diamond investment-this guide explores one of the most mysterious and desirable categories in the world of natural fancy color diamonds.The Ultimate Guide to Green Diamonds is a complete introduction to the science, history, rarity, grading, valuation, collecting, and investment potential of natural green diamonds. Formed over immense geological time and often colored by natural radiation exposure, green diamonds are among the most fascinating gemstones ever discovered.Inside, readers will discover how green diamonds receive their color, why natural green diamonds are so difficult to authenticate, and how laboratories distinguish natural color from treated or enhanced stones. The book explores famous green diamonds, historic discoveries, auction records, grading terminology, color modifiers, and the market forces that influence value.Readers will learn: - What makes a diamond naturally green- Why green diamonds are so rare- How radiation can create green coloration- The difference between natural, treated, and laboratory-grown green diamonds- How Fancy Light, Fancy, Fancy Intense, and Fancy Vivid Green diamonds are graded- Why origin-of-color determination is crucial- Which secondary hues affect desirability and value- How cut, clarity, and carat weight influence price- The history of famous green diamonds such as the Dresden Green- How collectors evaluate documentation, rarity, provenance, and investment potential- How to buy, insure, store, and preserve green diamonds intelligentlyCombining gemological science, collector insight, historical context, and practical buying guidance, The Ultimate Guide to Green Diamonds is an essential resource for collectors, investors, jewelers, gemology students, diamond dealers, and anyone fascinated by rare colored diamonds.…

Taschenbuch. Zustand: Neu. Neuware.

Taschenbuch. Zustand: Neu. Neuware.

Taschenbuch. Zustand: Neu. Neuware.

Zustand: Sehr gut. Zustand: Sehr gut | Sprache: Deutsch | Produktart: Bücher | Keine Beschreibung verfügbar.