Practical Gemmology - A Study of the Identification of Gem-Stones, Pearls and Ornamental Minerals PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Practical Gemmology - A Study of the Identification of Gem-Stones, Pearls and Ornamental Minerals PDF full book. Access full book title Practical Gemmology - A Study of the Identification of Gem-Stones, Pearls and Ornamental Minerals by Robert Webster. Download full books in PDF and EPUB format.
Author: Robert Webster
Publisher: Read Books Ltd
ISBN: 1447498844
Category : Nature
Languages : en
Pages : 227
Get Book Here
Book Description
This vintage book contains an interesting and practical study of the identification of gemstones, pearls, and ornamental minerals. A comprehensive and profusely-illustrated handbook for both novice and experienced practitioners, this volume is not to be missed by anyone with a keen interest in the subject. The chapters of this book include: “Crystallography”, “Physical Properties”, “Specific Gravity”, “Light”, “Measurement of Refractive Index”, “Colour in Gem Distinction”, “The Microscope”, “The Gem Species”, “Synthetic Gems”, “Imitation Gems”, “Composite Stones and Artificially Induced Colour”, etcetera. This book is being republished now in an affordable, modern, high quality edition - complete with a specially commissioned new introduction on gemmology.
Author: Robert Webster
Publisher: Read Books Ltd
ISBN: 1447498844
Category : Nature
Languages : en
Pages : 227
Get Book Here
Book Description
This vintage book contains an interesting and practical study of the identification of gemstones, pearls, and ornamental minerals. A comprehensive and profusely-illustrated handbook for both novice and experienced practitioners, this volume is not to be missed by anyone with a keen interest in the subject. The chapters of this book include: “Crystallography”, “Physical Properties”, “Specific Gravity”, “Light”, “Measurement of Refractive Index”, “Colour in Gem Distinction”, “The Microscope”, “The Gem Species”, “Synthetic Gems”, “Imitation Gems”, “Composite Stones and Artificially Induced Colour”, etcetera. This book is being republished now in an affordable, modern, high quality edition - complete with a specially commissioned new introduction on gemmology.
Author: Robert Webster
Publisher: Robert Hale
ISBN: 9780719801310
Category :
Languages : en
Pages : 0
Get Book Here
Book Description
Practical Gemmology has for decades been recognized as the standard work for those learning how to identify gems and ornamental minerals. It is recommended by educational authorities as a course textbook, and it is also particularly suitable as a self-instructor for those entering or hoping to advance in the jewellery and gem trades, or for the keen amateur. The 21 sections comprise notes on the formation of gem materials, and a section on luminescence and electrical effects bring a more modern approach to this part of the subject. More information is given on the inclusions seen in gemstones, and the newer synthetic stones are discussed. The methods used in cutting gemstones and details of more of the unusual gemstones now cut and polished are also discussed.
Author: DeeDee Cunningham
Publisher: Robert Hale
ISBN: 9780719804311
Category : Gems
Languages : en
Pages : 0
Get Book Here
Book Description
Although suitable for readers of all levels of understanding, 'Practical Gemmology' is specifically tailored to provide the information and diagrams necessary for the successful completion of diploma examinations and is an invaluable tool for gemmology students.
Author: Robert Webster
Publisher:
ISBN:
Category : Precious stones
Languages : en
Pages : 294
Get Book Here
Book Description
Author: Robert Webster
Publisher:
ISBN:
Category : Gems
Languages : en
Pages : 209
Get Book Here
Book Description
Author: Robert Webster
Publisher:
ISBN:
Category :
Languages : en
Pages : 209
Get Book Here
Book Description
Author: Peter G. Read
Publisher: Butterworth-Heinemann
ISBN: 0750664495
Category : Design
Languages : en
Pages : 341
Get Book Here
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.
Author: P. G. Read
Publisher: Elsevier
ISBN: 1483144674
Category : Nature
Languages : en
Pages : 375
Get Book Here
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.
Author: Robert F.G.A. Webster
Publisher:
ISBN:
Category :
Languages : en
Pages : 180
Get Book Here
Book Description
Author: W. William Hanneman
Publisher:
ISBN: 9780966906301
Category : Mineralogy
Languages : en
Pages : 172
Get Book Here
Book Description
