A Text-Book of Precious Stones (Classic Reprint): For Jewelers and the Gem-Loving Public: For Jewelers and the Gem-Loving Public (Classic Reprint) - Softcover

Inhaltsangabe

Master gem knowledge for every jeweler's bench in one compact guide.

A Text-Book of Precious Stones delivers practical methods to identify and distinguish gemstones through properties like refractive index, hardness, and density, making science accessible for everyday use. This classic reference covers the key techniques a tradesperson needs, from basic concepts to careful, measured testing. It emphasizes using numerical properties and simple tools to avoid costly mistakes, with clear explanations and real-world examples drawn from the gem trade.

• How to separate stones from imitations and determine authentic materials
• Step-by-step guidance on testing refractive index, specific gravity, and other properties
• Naming conventions and common naming pitfalls to prevent misidentification
• Practical notes on handling, cutting, and evaluating stones for market value

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