Author: Robert WebsterPublisher: Van Nostrand Reinhold Company
ISBN:
Category : Design
Languages : en
Pages : 264
Book Description
Gemmologists' Compendium
Author: Robert WebsterPublisher: Van Nostrand Reinhold Company
ISBN:
Category : Design
Languages : en
Pages : 264
Book Description
The Gemmologists' Compendium
Author: Robert WebsterThe Gemmologists' Compendium
Author: Robert WebsterPublisher:
ISBN: 9780719800016
Category : Gems
Languages : en
Pages : 235
Book Description
Gemmologists' Compendium
Author: Robert WebsterPublisher: NAG Press
ISBN:
Category : Antiques & Collectibles
Languages : en
Pages : 264
Book Description
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 and who worked in the London Gem Testing Laboratory for twenty-five years, this edition has been completely revised and updated by E. Alan Jobbins, Keeper of Minerals and Gemstones at the Geological Museum in London for thirty-five years. The first part of the book is a comprehensive glossary on all aspects of gemstones and the terms associated with them. The second part includes sections on manufactured gems, the enhancement of gem materials and on the precautions necessary for avoiding damage to gemstones and jewellery during manufacturing, repairs and cleaning. There are comprehensive sets of tables of the physical constraints needed for gem testing, of the sources of gem materials and the cuts used to demonstrate their beauty. Fifteen pages of colour photographs will assist in the identification of inclusions and there are many useful conversion tables.
The Gemmologists' Compendium
Author: R. WebsterThe Gemmologist's Pocket Compendium
Author: Robert WebsterPublisher: Harrison Press
ISBN: 1446527921
Category : Antiques & Collectibles
Languages : en
Pages : 164
Book Description
This scarce text constitutes a comprehensive handbook for practising gemmologists, timeless in its informative value and the perfect compendium for anyone interested in the subject. Gemmology is the science of natural and artificial gems and gemstones, and this book deals primarily with the methodology and techniques used in the classification thereof. Chapters contained within this fascinating text include: Colour, Colour Filter, Composite Stones, Diamond Size Gauge, Dispersion, Forms used in Fashioning, Hardness, Manufactured Gems, Specific Gravity, and many more. This text is prefaced with a detailed forward by L. J. Spencer, who was President of the Mineralogical Society, editor of Mineralogical Magazine, Keeper of Minerals in the British Museum of Natural History, and honorary Life Fellow of the Mineralogical Society of America. The Gemmologist's Pocket Compendium was originally published in 1937 and is proudly republished here with a new prefatory introduction of the topic."
The Gemmologists' Compendium, Etc. [With Diagrams and a Map.].
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Author: Robert Webster (F.G.A.)Publisher:
ISBN:
Category :
Languages : en
Pages : 228
Book Description
סוגיות בהלכות דפנות סוכה וסכך
Author: The Gemmologists' Compendium. Third Edition. [With Plates.].
![The Gemmologists' Compendium. Third Edition. [With Plates.]. PDF](https://books.google.com/books/content/images/frontcover/n6AFMwEACAAJ?fife=w80-h100)
Author: Robert WebsterGem Identification Made Easy (4th Edition)
Author: Antoinette MatlinsPublisher: Turner Publishing Company
ISBN: 0943763894
Category : Antiques & Collectibles
Languages : en
Pages : 366
Book Description
one person can accomplish big things.