Hans j steinberg (63 risultati)

Paperback. Condizione: new. Paperback. Everything There Is to Know About MoonstoneDiscover the complete world of moonstone-from adularescence and feldspar mineralogy to identification, varieties, value, collecting, jewelry, history, and care.Everything There Is to Know About Moonstone by Hans J Steinberg is a comprehensive guide to one of the world's most recognizable phenomenal gemstones. Known for its mysterious floating glow, moonstone has fascinated collectors, jewelers, gemologists, historians, and gemstone enthusiasts for generations.But what actually causes moonstone's famous adularescence? What is the difference between blue moonstone, white moonstone, peach moonstone, cat's-eye moonstone, star moonstone, and rainbow moonstone? Is rainbow moonstone really moonstone? How can you identify genuine moonstone, recognize imitations, and understand what makes one stone far more valuable than another?This accessible reference explores moonstone from both a scientific and practical perspective, combining gemology, mineralogy, geology, history, gemstone identification, grading, collecting, lapidary work, jewelry, and buying advice in one complete guide.Inside, you'll discover: What moonstone is and how it fits within the feldspar mineral groupHow orthoclase, albite, labradorite, and related feldspars differHow moonstone forms through crystallization, cooling, exsolution, pegmatitic processes, weathering, and secondary depositsThe science behind adularescence, blue sheen, white sheen, cat's-eye effects, stars, and other optical phenomenaThe differences between colorless, blue, white, peach, orange, yellow, gray, brown, and rainbow moonstoneFamous moonstone sources in Sri Lanka, India, Myanmar, Madagascar, Tanzania, Brazil, the United States, and beyondMoonstone's role in ancient traditions, South Asian culture, European jewelry, Art Nouveau, and modern gemstone designThe truth behind moonstone folklore involving the moon, love, fertility, intuition, protection, travel, and spiritual symbolismHow to distinguish natural moonstone, treated stones, synthetic substitutes, glass, opalite, quartz, chalcedony, and other imitationsWhy commercial rainbow moonstone is generally labradorite, not traditional orthoclase moonstoneHow gemologists test moonstone using refractive index, specific gravity, microscopy, polarization, spectroscopy, and other methodsHow to evaluate adularescence, transparency, body color, clarity, sheen position, cut, size, origin, and rarityWhy fine transparent blue-sheen moonstone can command substantial premiumsHow moonstone is cut, oriented, polished, carved, faceted, and shaped into cabochons, beads, and jewelryWhat buyers and collectors should know about laboratory reports, provenance, locality claims, antique moonstone jewelry, auctions, scams, and investment risksHow to properly clean, store, wear, repair, and preserve moonstone jewelryWhether you're researching your first moonstone purchase, studying gemstone identification, building a mineral or jewelry collection, exploring rainbow moonstone, or simply fascinated by gemstones with unusual optical effects, Everything There Is to Know About Moonstone provides a practical foundation for understanding this remarkable gem.Learn how to identify real moonstone, understand adularescence, compare moonstone varieties, recognize imitations, evaluate quality and value, and buy with greater confidence.An essential reference for moonstone collectors, gemstone enthusiasts, jewelry buyers, gemology students, lapidaries, mineral collector Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

Paperback. Condizione: new. Paperback. Everything There Is to Know About JadeDiscover the complete world of jade-from jadeite and nephrite to imperial jade, ancient Chinese masterpieces, gemstone identification, treatments, grading, collecting, value, jewelry, and investment.Everything There Is to Know About Jade by Hans J Steinberg is a comprehensive and accessible guide to one of the world's most fascinating, valuable, and culturally important gemstones.Jade has been treasured for thousands of years, yet the word jade actually describes two different mineral materials: jadeite and nephrite. From brilliant green imperial jadeite and delicate lavender jade to white mutton-fat nephrite, icy jade, ancient carvings, bangles, beads, pendants, and monumental works of art, jade encompasses an extraordinary range of colors, qualities, histories, and values.But how can you tell real jade from fake jade? What is the difference between jadeite vs nephrite? Why can exceptional jadeite sell for extraordinary prices while other jade remains affordable? And how can buyers recognize Type A, Type B, Type C, dyed, bleached, polymer-treated, synthetic, and imitation jade?This detailed jade reference answers those questions and much more.Inside, you'll discover: The essential differences between jadeite and nephrite jadeHow jade forms in subduction zones, metamorphic environments, serpentinite bodies, and secondary depositsThe characteristics of imperial green jade, lavender jade, icy jade, black jade, white jade, spinach jade, and mutton-fat nephriteFamous jade sources in Myanmar, China, Guatemala, Russia, Canada, New Zealand, Japan, Kazakhstan, and beyondThe extraordinary history of jade in ancient China, Mesoamerica, Maori culture, Central Asia, and the international gemstone tradeThe meaning of jade in Chinese culture, philosophy, symbolism, burial traditions, imperial art, and jewelryHow to recognize natural, treated, synthetic, reconstructed, and imitation jadeWhat Type A, Type B, Type C, and Type B+C jadeite actually meanHow gemologists identify jade using refractive index, specific gravity, microscopy, FTIR, Raman spectroscopy, fluorescence, and other testsHow color, translucency, texture, clarity, craftsmanship, size, treatment, and provenance determine jade quality and valueHow jade is cut, carved, polished, made into bangles, beads, cabochons, pendants, figurines, and works of artWhat collectors should know about jade auctions, laboratory reports, antique jade, provenance, scams, pricing, and investment risksHow to safely clean, store, wear, conserve, and protect jade jewelry and antique carvingsHow modern mining, ethical sourcing, laboratory technology, Chinese demand, and changing tastes may shape the future of the jade marketWhether you're researching your first jade purchase, trying to identify a family heirloom, learning about Chinese jade, building a gemstone collection, studying gemology, or simply fascinated by this legendary material, Everything There Is to Know About Jade provides a practical foundation for understanding jade with greater confidence.Learn how to identify jade, understand jadeite and nephrite, recognize treatments and imitations, evaluate quality and value, appreciate ancient jade traditions, and become a more knowledgeable buyer and collector.An essential reference for jade collectors, gemstone enthusiasts, jewelry buyers, gemology students, rock and mineral collectors, antique collectors, lapidaries, and anyone interested in Chinese jade, imperial jadeite, nephrite, and pr Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Taschenbuch. Condizione: 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. Condizione: Neu. Neuware.

Taschenbuch. Condizione: Neu. Neuware.

Taschenbuch. Condizione: Neu. Neuware.