[Querida] หนังสือภาษาอังกฤษ Gemstones (Dk Handbooks) by Cally Hall

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

Learn how gemstones are formed and how to recognise them by their unique qualities and colours. A wonderful book for beginners students and gemstone-enthusiasts that includes the latest scientific research and gemstone classification.

Gemstones is filled with all you need to know about these fascinating minerals - cut and uncut stones organic gemstones and precious metals. Inside youll find:

- Fast facts for quick reference including chemical composition hardness gravity lustre 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

Delve into the one-of-a-kind characteristics colours and attributes of more than 130 gemstones with this compact visual guide. For easy classification each stones 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. Its the ideal gift for any budding gemologist

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.