Informationen zum Autor Cally Hall is a geology expert and an author of educational guidebooks that make the subject accessible to a variety of readers. She wrote her first book, a DK Smithsonian Handbook called Gemstones , in 1994. She has also written two science-themed books aimed at younger audiences, Closer Look at Mountains and Closer Look at Forests . Klappentext The clearest and most straightforward photographic field guide for gems of the world. This compact visual guide is packed with more than 800 vivid full-color photographs of more than 130 varieties of cut and uncut stones! organic gemstones! and precious metals. With authoritative text! clear photography! and a systematic approach! this concise guide to identification enables you to recognize each gemstone instantly. Each expertly written entry combines a precise description with annotated photographs to highlight the gemstone's chief characteristics and distinguishing features. Additional color illustrations and photographs show uncut stones! color variations! and a range of popular cuts! while color-coded bands provide at-a-glance facts for quick reference. The detailed introduction defines what a gemstone is! explains the physical and optical properties used to identify and classify gemstones! and shows how they have been fashioned and even imitated throughout history. To help with the initial stages of identification! a color key illustrates the variety of colors found within natural and synthetic gemstones. A concise glossary explains the relevant scientific and technical terms. Zusammenfassung Unearth a treasure trove of knowledge on over 130 gemstones from around the world. Learn how gemstones are formed and how to recognize them by their unique qualities and colors. It's a wonderful book for beginners, students and gemstone-enthusiasts that includes the latest scientific research and specimen classification. Handbook of Gemstones is filled with all you need to know about the fascinating world of gemstones cut and uncut stones, organic gemstones and precious metals. Inside, you'll find: • Fast facts for quick reference, including chemical composition, hardness, gravity, luster and reflective value. • Photo close-ups of key details and highlights of distinguishing features. • Illustrations of faceting and shapes popular for each gemstone. • A detailed introduction to everything a beginner gemologist needs to know, including how gemstones form, the different properties, crystal shapes, faceting and the history of gems. Everything you ever wanted to know about gems Delve into the one-of-a-kind characteristics, colors and attributes of more than 130 gemstones with this compact visual guide. For easy classification, each stone's entry includes annotated photographs to highlight distinguishing features and concise details about the attributes of gems. Designed for beginners and experienced collectors alike, this gemology book explores what gemstones are, how they are classified and how to identify them by their physical and optical properties. It also shows you how they were fashioned and imitated throughout history. Learn the differences between varieties of cut and uncut stones, organic gemstones and precious metals. It includes a glossary for many more technical and scientific terms, and over 800 high-quality photos of gems, making it the ideal gift for any budding gemologist! Love what you're seeing? Check out other titles in the series! The DK Handbook series is an incredible collection of titles that fascinate curious minds. Other books include Rocks and Minerals, Dinosaurs, and Prehistoric Life, and Stars and Planets....

Klappentext

The clearest and most straightforward photographic field guide for gems of the world.

This compact visual guide is packed with more than 800 vivid full-color photographs of more than 130 varieties of cut and uncut stones, organic gemstones, and precious metals. With authoritative text, clear photography, and a systematic approach, this concise guide to identification enables you to recognize each gemstone instantly. Each expertly written entry combines a precise description with annotated photographs to highlight the gemstone's chief characteristics and distinguishing features. Additional color illustrations and photographs show uncut stones, color variations, and a range of popular cuts, while color-coded bands provide at-a-glance facts for quick reference.
The detailed introduction defines what a gemstone is, explains the physical and optical properties used to identify and classify gemstones, and shows how they have been fashioned and even imitated throughout history. To help with the initial stages of identification, a color key illustrates the variety of colors found within natural and synthetic gemstones. A concise glossary explains the relevant scientific and technical terms.

Zusammenfassung
Unearth a treasure trove of knowledge on over 130 gemstones from around the world.

Learn how gemstones are formed and how to recognize them by their unique qualities and colors. It's a wonderful book for beginners, students and gemstone-enthusiasts that includes the latest scientific research and specimen classification.

Handbook of Gemstones is filled with all you need to know about the fascinating world of gemstones cut and uncut stones, organic gemstones and precious metals. Inside, you'll find:

• Fast facts for quick reference, including chemical composition, hardness, gravity, luster and reflective value.
• Photo close-ups of key details and highlights of distinguishing features.
• Illustrations of faceting and shapes popular for each gemstone.
• A detailed introduction to everything a beginner gemologist needs to know, including how gemstones form, the different properties, crystal shapes, faceting and the history of gems.

Everything you ever wanted to know about gems

Delve into the one-of-a-kind characteristics, colors and attributes of more than 130 gemstones with this compact visual guide. For easy classification, each stone's entry includes annotated photographs to highlight distinguishing features and concise details about the attributes of gems.

Designed for beginners and experienced collectors alike, this gemology book explores what gemstones are, how they are classified and how to identify them by their physical and optical properties. It also shows you how they were fashioned and imitated throughout history. Learn the differences between varieties of cut and uncut stones, organic gemstones and precious metals. It includes a glossary for many more technical and scientific terms, and over 800 high-quality photos of gems, making it the ideal gift for any budding gemologist!

Love what you're seeing? Check out other titles in the series!

The DK Handbook series is an incredible collection of titles that fascinate curious minds. Other books include Rocks and Minerals, Dinosaurs, and Prehistoric Life, and Stars and Planets.