Overview

This second edition 'Gemmology' has been expanded and updated throughout by the well known writer and editor of Butterworth-Heinemann's gemmology series, Peter Read. This is a much needed update of a classic text and new syllabus information and sample examination theory papers for the Gemmological Association's Preliminary and Diploma courses are included. The additions also incorporate more recent developments, such as the introduction of synthetic moissanite and the De Beer's instruments for distinguishing ...
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Gemmology

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Overview

This second edition 'Gemmology' has been expanded and updated throughout by the well known writer and editor of Butterworth-Heinemann's gemmology series, Peter Read. This is a much needed update of a classic text and new syllabus information and sample examination theory papers for the Gemmological Association's Preliminary and Diploma courses are included. The additions also incorporate more recent developments, such as the introduction of synthetic moissanite and the De Beer's instruments for distinguishing between natural and synthetic diamonds.

'Gemmology' still serves as a useful reference guide for gemmologists detailing the latest natural and synthetic gem materials and is an invaluable text for anyone in the gemmological profession.

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

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Editorial Reviews

Booknews
Read, a writer and lecturer on gems and gem test equipment (which he also designs), offers an updated edition of his 1991 reference, written for both beginning and advanced students. Coverage includes introductory chapters on the evolution of the science of gemmology and geological formation and occurrence of gemstones, as well as detailed discussion of all the various gemstone properties. This second edition includes new syllabus information and sample examination theory papers for the Gemmological Association's Preliminary and Diploma courses. Other additions incorporate recent developments, such as the introduction of synthetic moissanite and the De Beers instruments for distinguishing natural and synthetic diamonds. Annotation c. Book News, Inc., Portland, OR (booknews.com)
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Product Details

  • ISBN-13: 9781136000096
  • Publisher: Taylor & Francis
  • Publication date: 10/2/2012
  • Sold by: Barnes & Noble
  • Format: eBook
  • Edition number: 2
  • Pages: 326
  • Sales rank: 1,195,712
  • File size: 14 MB
  • Note: This product may take a few minutes to download.

Table of Contents

1 Introduction 1
2 The geological origin, occurrence and locality of gemstones 11
3 The chemical composition of gemstones 22
4 Crystallography 29
5 Cleavage, parting and fracture 43
6 Hardness 48
7 Specific gravity, density and relative density 54
8 Colour, lustre and sheen 67
9 Reflection and refraction 79
10 Polarization and pleochroism 105
11 Spectroscopy 115
12 Luminescent, electrical and thermal properties of gemstones 127
13 The hand lens, microscope and Chelsea filter 141
14 Gemstone enhancement 155
15 Synthetic gemstones and gemstone simulants 168
16 Identifying inorganic gemstones and their synthetic counterparts 189
17 Identifying inorganic gemstone simulants 212
18 Identifying organic gem materials and their simulants 223
19 The fashioning of gemstones 243
20 Practical gemstone identification 263
App The organic gems
App The inorganic gems
App Man-made diamond simulants
App Examination notes
App Gemstone constants
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