Practical Gemmology A Study of the Identification of Gem Stones Pearls and Ornamental Minerals

This vintage book contains an interesting and practical study of the identification of gemstones, pearls, and ornamental minerals.

Author: Robert Webster

Publisher: Read Books Ltd

ISBN: 1447498844

Category: History

Page: 194

View: 549

Here will be found a shortened but complete course in gemmology, following the traditional lines adopted in teaching students at Chelsea Polytechnic in preparation for the Gemmological Association Examinations. This book contains classic material dating back to the 1900s and before. The content has been carefully selected for its interest and relevance to a modern audience.

Practical Gemmology

Practical Gemmology has for decades been recognized as the standard work for those learning how to identify gems and ornamental minerals.

Author: Robert Webster

Publisher: N. A. G. Press

ISBN: 9780719801310

Category: Antiques & Collectibles

Page: 216

View: 456

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.

Practical Gemmology

Re-written and expanded, this completely updated book includes new material on high-tech treatments and synthetic diamonds as well as instrumentation, theory, testing and gemstone properties.

Author: DeeDee Cunningham

Publisher: N.A.G. Press

ISBN: 9780719804311

Category: Science

Page: 336

View: 627

Robert Webster’s highly regarded work, Practical Gemmology, first published in 1943, has been through six editions and numerous reprints and was long considered the standard work for those learning the theory and science of gemmology. This classic, on which professional gemmology courses were founded, has been entirely revised by DeeDee Cunningham to return it to its esteemed place among current gemmological education books. Re-written and expanded, this completely updated book includes new material on high-tech treatments and synthetic diamonds as well as instrumentation, theory, testing and gemstone properties. Its nineteen lessons each serve as individual lectures and it pays considerable attention to covering all the background information and theory necessary for understanding every concept central to gemmological theory. 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.

Practical Gemmology

Author: R. Webster

Publisher:

ISBN:

Category:

Page: 209

View: 418


Gemmology

... S. (1962) The History and Use of Diamond, Methuen, London Walton, Sir J. (
1952) Physical Gemmology, Pitman, London Watermeyer, B. (1980) Diamond
Cutting, Purnell, Cape Town Webster, R. (1976) Practical Gemmology, 6th edn,
NAG, ...

Author: Peter G. Read

Publisher: Butterworth-Heinemann

ISBN: 0750664495

Category: Science

Page: 324

View: 401

Since Gemmology was first published, thousands of readers have used it to gain an in-depth appreciation of the science of gemmology, its history and practice. This third 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. It includes details of the Gemmological Associations recently introduced Foundation course, and even provides sample examination questions. * Contains essential information for the Gem-A exams * Fully updated to cover recent advances and instruments * An invaluable resource for gemmologists worldwide

European jeweler

Gemmological Courses in English DGemG - Gemmology Diploma Course +
Commercial Gemmology + Pearls / Org . Substances + Diamond Diploma Course
Complete Course 2 . 8 . - 10 . 12 . ... Practical Gemmology 1 30 . 8 . - 17 . 9 .

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Category: Goldwork

Page:

View: 842


Journal of Gemmology and Proceedings of the Gemmological Association of Great Britain

LABORATORY BASED COURSES For over sixty years the Laboratory has been
in the forefront of practical gemmology . Now we can offer short Laboratory based
courses on all aspects of practical gem - testing and diamond grading . Find out ...

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Category: Precious stones

Page:

View: 393

Vols. for July 1964 include Proceedings of the Gemmological Association of Great Britain.

The Gemmologist

The last word on the subsect . clach bod Heby pose UNITED STATES
PRACTICAL CLOCK REPAIRING by DONALD DE CARLE , F . Gears for Small
Mechanisms , Diamond Demy 8vo . 230 pages . 450 illustrations . Cloth .
Technology , and ...

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The Journal of Gemmology

OBITUARY Dean Stirling Mark Field Members of the Canadian Gemmological
Association were saddened recently to learn of the sudden ... A breakthrough for
him came with the publication in 1941 of Robert Webster ' s Practical Gemmology
.

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Category: Precious stones

Page:

View: 119

Vols. for July 1964 include Proceedings of the Gemmological Association of Great Britain.

The Lapidary Journal

0 15 Practical Gemmology — WEBSTER Ō 153 A Check List of Cabochon Gem
Material and Their Lapidary Features . . . . 1 . 50 Gemstones ... 95 Gemmologists '
Compendium , New Revised Edition , 1967 _ WEBSTER . . . . . . The Book of ...

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Category: Gem cutting

Page:

View: 734


Industrial Diamond Review

Each volume includes INDUSTRIAL DIAMOND REVIEW and Gemmologist . 15. -
each . Box 2038 . BOOKS . PRACTICAL GEMMOLOGY by Robert Webster ,
F.G.A. 10 / 6d . including postage . THE GEMMOLOGIST'S COMPENDIUM by
Robert ...

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Category: Diamonds, Industrial

Page:

View: 106


Gems Gemology

Journal of Gemmology , Vol . ... Liddicoat R.T. Jr. ( 1964 ) The International
Gemmological Conference in Vienna . ... Youngs B.A. ( 1980 ) Richard T.
Liddicoat : The man behind the T he use of practical gemological techniques is
essential ...

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Category: Gemology

Page:

View: 871


Horological Journal

TEXTBOOKS produced and published by N . A . G . Press , are written and
illustrated by experts For Gemmologists , Jewellers ... PRACTICAL GEMMOLOGY
by ROBERT WEBSTER , F . G . A . An instructional textbook of 19 illustrated
lessons .

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Category: Clocks and watches

Page:

View: 619


Pin ups

PREFACE TO THE FIRST EDITION For two decades , an earlier work of mine - -
Practical Gemmology - has proved a useful elementary textbook on the subject of
gem materials and their testing , a study now known as ' gemmology ' . During ...

Author: Bruno Bernard

Publisher:

ISBN:

Category: Glamour photography

Page: 63

View: 303


The United States Catalog

C. E. 638 Estates gazette Practical formwork and mould construction .
Richardson . J. G. 40s C.R. bks . Practical gamma spectrometry : Duivenstijn ,
A. J. and Venverloo , L. A. J. 358 CleaverHume ; 17.50fl Centrex Practical
gemmology [ with ...

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Category: American literature

Page: 3164

View: 207


The Publishers Trade List Annual

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Category: American literature

Page:

View: 416


Gemmologists Compendium

Robert Webster, E. Alan Jobbins. Gemmologists Compendium Also by Robert
Webster Practical Gemmology GEMMOLOGISTS COMPENDIUM Seventh Edition
.

Author: Robert Webster

Publisher: NAG Press

ISBN:

Category: Antiques & Collectibles

Page: 240

View: 726

This is the seventh edition of a book which has been for years the "bible" of professional and amateur gemmologists, as well as retail jewellers. Originally written by Robert Webster, an expert who dedicated most of his life to the subject, this edition has been completely revised and updated by E. Alan Jobbins, Keeper of Minerals and Gemstones at the Geological Museum in London for 35 years. It includes a comprehensive glossary on all aspects of gemstones and the terms associated with them, and sections on manufactured gems, the enhancement of gem materials, and the precautions necessary to avoid damage to gemstones and jewellery during manufacturing, repairs, and cleaning.

Jewelers Circular keystone

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Category: Clocks and watches

Page:

View: 279


The Journal of Gemmology and Proceedings of the Gemmological Association of Great Britain

... Chamber of Commerce in Hatton Garden that they thought it was the N.A.G or
G.A. laboratory . Anderson and Webster between them inspired many of the
earlier students to become practical gemmology instructors as classes expanded
and ...

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Category: Gemology

Page:

View: 968

Vols. for July 1964 include Proceedings of the Gemmological Association of Great Britain.

A Guide to the Collection of Gemstones in the Geological Museum

are called , are identical for all practical purposes with the natural stone , from
which they can be distinguished only by ... are published in the monthly
magazine The Gemmologist and in the quarterly Journal of Gemmology and
Proceedings of ...

Author: Museum of Practical Geology (Great Britain)

Publisher:

ISBN:

Category: Precious stones

Page: 75

View: 596