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Isbn 13: 9798246494035

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The Ultimate Guide to Opals by Hans J. Steinberg is a comprehensive, authoritative exploration of one of the world’s most captivating and misunderstood gemstones. Opals are unlike any other gem, prized for their play-of-color, rarity, and complex value factors. This book is written for collectors, investors, jewelers, gem enthusiasts, and serious buyers who want to understand opals at a professional level.

Inside this guide, readers gain a deep understanding of what opals are, how they form, and why no two stones are ever the same. The book explains the science behind opalescence, the role of silica and water, and the geological conditions that create white opals, black opals, fire opals, crystal opals, boulder opals, and other varieties. Major opal-producing regions such as Australia, Ethiopia, Mexico, and the United States are examined in detail, including what makes stones from each region distinct in appearance and market value.

This guide also provides practical, real-world knowledge for buying and selling opals. Readers learn how to evaluate color, pattern, brightness, body tone, clarity, cut, and carat weight, as well as how these factors influence pricing and long-term desirability. The book explains grading standards, common treatments, synthetic and imitation opals, and how to identify genuine stones with confidence. It also covers authentication methods, certification, and how to avoid costly mistakes when purchasing opals online or at auction.

Beyond valuation, the book explores the cultural history, mythology, and symbolism of opals across civilizations, from ancient Australia and Rome to modern luxury jewelry markets. Detailed sections on care, cleaning, storage, and long-term preservation ensure readers know how to protect opals properly, whether set in jewelry or held as part of a collection.

Written in clear, accessible language while retaining professional depth, The Ultimate Guide to Opals serves as both a reference manual and a buyer’s guide. It is an essential resource for anyone serious about understanding, collecting, investing in, or working with opal gemstones.

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Isbn 13 :9798246494035
Encadernação The Ultimate Guide to Opals (The Ultimate Guide to Gemstones):Capa Comum
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