The Gemmologist
Author :
Publisher :
Page : 868 pages
File Size : 28,8 MB
Release : 1961
Category : Gems
ISBN :
Gemmologists' Compendium
Author : Robert Webster
Publisher : Van Nostrand Reinhold Company
Page : 264 pages
File Size : 46,99 MB
Release : 1980
Category : Design
ISBN :
Book Description
Secrets of the Gem Trade
Author : Richard W. Wise
Publisher :
Page : 0 pages
File Size : 47,19 MB
Release : 2006
Category : Gems
ISBN : 9780972822381
Book Description
The definitive book for anyone wanting to learn how the best gemologists in the world evaluate precious gems, and what makes one stone merely a good stone versus a truly fabulous museum-quality gem. The author, Richard W. Wise, is one of the world's foremost gemologists.
Gems and Gemmology
Author : Stefanos Karampelas
Publisher : Springer Nature
Page : 120 pages
File Size : 18,41 MB
Release : 2020-03-10
Category : Social Science
ISBN : 3030354490
Book Description
This book provides a lucid introduction to the basics of gemmology. It familiarizes archaeologists, art historians and conservators with the science of gemstones and allows them to understand the basic concepts of their provenance, typology and treatments. Which are the main types of gems? What treatments can be applied? How does one analyse gems? How can gems contribute to archaeometrical research? This volume is written by four experts in the fields of gemmology and archaeometry and addresses both students who need an introduction to this field and professionals who want to refresh their knowledge of the topic. This work is part of a series of introductory texts that deal with a broad range of materials-related topics in archaeometry.
The Gemmologists' Compendium
Author : Robert Webster
Publisher :
Page : 296 pages
File Size : 12,64 MB
Release : 1947
Category : Gems
ISBN :
Book Description
Gemmological Instruments
Author : Peter G Read
Publisher : Elsevier
Page : 341 pages
File Size : 13,73 MB
Release : 2013-09-24
Category : Science
ISBN : 1483192261
Book Description
Gemmological Instruments deals with the developments in diamond grading equipment and gem testing instruments since the publication of the first edition in 1978. These developments include improvements in the versatility and styling of existing instruments such as the reflectivity meter, the composite spectroscope, and the refractometer. It also addresses the criticisms in the first edition and provides a discussion of the advantages and disadvantages of different gem testing equipment. This book is organized into 16 chapters that describe groundbreaking instruments like the thermal conductivity diamond testers and home-constructed items that while innovative have not yet been commercialized. There are also chapters dealing with microphotography and identification of synthetics and stimulants. This book also provides a listing of gemstone constants and characteristic inclusions in natural and synthetic gemstones. This book will be of interest to people interested in equipment for gem testing and diamond grading.
Gem Identification Made Easy (6th Edition)
Author : Antoinette Matlins
Publisher :
Page : 0 pages
File Size : 33,96 MB
Release : 2016
Category : Precious stones
ISBN : 9780997014556
Book Description
Gem Identification Made Easy is the first and only book that explains in non-technical terms how to identify diamonds and colored gems, and how to separate natural gems from imitations, treated stones, synthetics, and look-alikes. The book's approach is direct and practical, and its style easy to understand. In fact, with this highly accessible guide, anyone can begin to master gem identification. Includes over 150 photographs and illustrationsover 80 in full color! Using a simple, step-by-step system, the authors explain how to properly use essential but uncomplicated instruments to identify stones, what to look for gemstone by gemstone, and how to set up a basic lab at modest cost. Three of the instruments are inexpensive, portable, pocket instruments that, when used together, can identify almost 85% of all precious and popular stones. The key to avoiding costly mistakes and recognizing profitable opportunities is knowing both what to look for and what to look out for. Gem Identification Made Easy will help you: Open your eyes to the types of treatments, imitations, synthetics, look-alikes, and fakes in the gem market today. Learn how to tell the difference between them. Quickly spot: Synthetics, including synthetic emeralds and diamonds Filled diamonds Diffused "blue" sapphires and "red" rubies HPHT-treated diamonds ... and much more! Determine how to spot the newest "composite" imitations. Learn how to identify recently discovered gems such as "Mandarin" garnet, red "emerald," and North Carolina's chromium-rich emeralds. Discover new treatments such as surface coatings to create "fancy color" diamonds and improve or change the color of many gemstones. Know when to seek help from a professional gemologist or lab. Become more professional in your business or hobby.
Gemmology
Author : Peter G. Read
Publisher : Butterworth-Heinemann
Page : 341 pages
File Size : 42,57 MB
Release : 2005
Category : Design
ISBN : 0750664495
Book Description
This edition has been completely revised to cover the latest methods of gem enhancement and identification, as well as the most up-to-date test instruments and laboratory techniques.
Gemmology
Author : P. G. Read
Publisher : Elsevier
Page : 375 pages
File Size : 44,70 MB
Release : 2013-10-22
Category : Nature
ISBN : 1483144674
Book Description
Gemmology is a text for students preparing for the Gemmological Association's Preliminary and Diploma examinations. The book is more expansive and up-to-date than the author's earlier book, Beginner's Guide to Gemmology. The book deals with the practical and theoretical sides of gemmology. Tracing the background and science of gemmology, the book covers the gem material, geological formation, and occurrence of gemstones on the earth. The composition of gemstones from the atoms, elements, molecules, and compounds comprising them is analyzed, and the relationship between chemical composition and durability of the stone is explained. The basics of crystallography is mentioned as a tool toward understanding gemmology after which cleavage, parting, and fracture are done. A gemstone's durability and hardness and how the latter influences engineering tests and the mining techniques are compared. An important test technique to identify unmounted stones is the measure of specific gravity using displacement measurement methods and hydrostatic methods. After more descriptive details are given in identification of gemstones, whether these are synthetic or simulants, through a comprehensive explanation of the materials found in these other gemstones, the fashioning, through shaping or polishing, of gemstones is explained. Emphasis is given on the critical angle in which light rays pass in different rock densities, and then the cutting styles, gemstone polishing, and grading are discussed. Students studying for the Gemmological Association's Preliminary and Diploma examinations, jewelers, lapidarists, and diamond cutters, as well as those engaged in the hobby of gemmology, will find this book helpful and full of information toward their endeavors and hobbies.
The World of Opals
Author : Allan W. Eckert
Publisher : John Wiley & Sons
Page : 490 pages
File Size : 42,12 MB
Release : 1997-10-02
Category : Nature
ISBN : 9780471133971
Book Description
Readers will find fascinating details about the discovery, whereabouts, and value of famous opals, from such classic specimens as the Burning of Troy Opal to the Bonanza Opal and other more recent discoveries. Finally, the book surveys today's major opal-producing areas and provides current information on opal occurrence worldwide. Punctuating the text are useful tables, extensive glossaries of opal types and opal-related terms, and beautiful photographs that capture the essence and mystery of this most exquisite stone.
