Cover image for Gems : a lively guide for the casual collector
Title:
Gems : a lively guide for the casual collector
Author:
Dennis, Daniel J.
Personal Author:
Publication Information:
New York : Harry N. Abrams, 1999.
Physical Description:
192 pages : color illustrations ; 26 cm
Language:
English
ISBN:
9780810941267
Format :
Book

Available:*

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Central Library NK5530 .D46 1999 Adult Non-Fiction Non-Fiction Area
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Hamburg Library NK5530 .D46 1999 Adult Non-Fiction Open Shelf
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Kenmore Library NK5530 .D46 1999 Adult Non-Fiction Open Shelf
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North Collins Library NK5530 .D46 1999 Adult Non-Fiction Open Shelf
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North Collins Library NK5530 .D46 1999 Adult Non-Fiction Reference material
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Anna M. Reinstein Library NK5530 .D46 1999 Adult Non-Fiction Open Shelf
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Williamsville Library NK5530 .D46 1999 Adult Non-Fiction Open Shelf
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Summary

Summary

A wealth of useful facts and lore about gems is presented in this light-hearted yet practical illustrated guide. It describes the process from rough stone to polished and set jewelry with helpful tips on cleaning and caring for them.


Reviews 1

Library Journal Review

Registered gemologist Newman understands this. In her two new guides, Newman continues her tradition of user-friendly texts that are technical enough to help consumers make wise purchases. Like her other well-regarded guides (e.g., The Gold Jewelry Buying Guide), this book is profusely illustrated with color photographs"most by Newman"showing not only the beauty of finished jewelry but close-ups and magnifications of details such as finish, settings, cut, clarity, flaws, and fakes. Sections on testing and judging the real from the fake are sophisticated enough for professionals to use. All three books are enjoyable reading, but Newman!s guides are the ones to take along when shopping. Gems will find a place in larger collections in need of a broad, basic guide. Newman!s books are highly recommended for both academic and public libraries of all sizes."Therese Duzinkiewicz Baker, Western Kentucky Univ. Libs., Bowling Green (c) Copyright 2010. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.


Table of Contents

A Word of Thanksp. 9
Introductionp. 11
Chapter 1 Exploring the World of Gemstonesp. 13
Our Fascination with Gemstonesp. 13
Defining a Gem in a Less Traditional Mannerp. 14
Assembling Your Personal Gem Collectionp. 16
Chapter 2 Gem Phenomenap. 18
Adularescencep. 18
Asterismp. 18
Aventurescencep. 19
Chatoyancyp. 19
Color Changep. 19
Color Playp. 20
Iridescencep. 20
Chapter 3 Where Gems Come Fromp. 21
"You Mean My Pretty Ruby Once Looked Like That?"p. 21
Recovering the Rough Is Not for the Faint of Heartp. 22
Primary and Secondary Depositsp. 22
Organic Matterp. 23
Tunnel Miningp. 23
The Journey from Rock to Retailp. 23
Chapter 4 Gem Enhancementp. 25
Bleachingp. 25
Chemical Treatments and Reactionsp. 25
Coatingsp. 26
Dyesp. 26
Foilingp. 27
Glass Fillingp. 27
Heatp. 27
Irradiationp. 28
Oilingp. 28
Consumer Resistancep. 29
Disclosurep. 29
The Government's Viewp. 30
Chapter 5 Man-Made Gemstonesp. 32
Synthetics and Simulantsp. 32
Doublets and Tripletsp. 33
Chapter 6 Things You Should Know Before You Buyp. 35
Carat Weight and Specific Gravityp. 35
The Mohs' Hardness Scalep. 37
Toughnessp. 37
Understanding the Refractive Indexp. 38
How Color Happensp. 38
The Importance of Color in the Evaluation of Gemsp. 39
Some of the Many Varieties of Shapesp. 39
How to Use a Jewelers Loupep. 40
How to Detect a Properly Cut Gemstonep. 40
Evaluating Settings from Every Anglep. 41
The Importance of the Claspp. 44
The Value of an Appraisalp. 45
Inspection, Wear and Tear, Repairp. 46
Chapter 7 Selecting a Retailerp. 47
Whom Can You Trust?p. 47
Chapter 8 Diamondsp. 50
How Diamonds Are Formedp. 50
Significant Sources of Supplyp. 50
Some Important Diamonds Throughout the Agesp. 51
Determining the Quality of a Diamondp. 52
Colored Diamonds: Natural or Enhanced?p. 56
Let the Buyer Beware: Impostors Aboundp. 57
The Future Outlook for the Diamond Supplyp. 58
Chapter 9 The Most Popular Colored Gemsp. 60
Berylp. 60
Aquamarinep. 60
Emeraldp. 61
Goshenitep. 63
Heliodorp. 63
Morganitep. 64
Other Berylsp. 64
Chalcedonyp. 65
Agatep. 65
Bloodstonep. 66
Blue Chalcedonyp. 67
Carnelianp. 67
Chrysoprasep. 67
Jasperp. 68
Onyxp. 68
Petrified Woodp. 69
Sard and Sardonyxp. 69
Chrysoberylp. 70
Alexandritep. 70
Cat's-Eye Chrysoberylp. 70
Yellow Chrysoberylp. 71
Corundump. 72
Padparadschap. 72
Rubyp. 73
Star Rubyp. 74
Sapphirep. 75
Star Sapphirep. 77
Fancy Sapphiresp. 78
Feldsparp. 81
Labradoritep. 81
Moonstonep. 82
Other Orthoclasesp. 82
Spectrolitep. 83
Sunstonep. 83
Garnetp. 84
The Red-Garnet Groupp. 85
Malaia Garnetp. 88
Spessartine Garnetp. 88
The Colorful Grossular Garnetsp. 89
Andradite Garnetsp. 91
Uvarovite Garnetp. 91
Lapis Lazulip. 92
Opalp. 93
White Precious Opalp. 93
Black Precious Opalp. 95
Fire Opalp. 96
Peridot (Chrysolite)p. 97
Quartzp. 99
Amethystp. 99
Ametrinep. 100
Aventurine Quartzp. 101
Citrinep. 102
Quartz Crystalp. 103
Rose Quartzp. 103
Smoky Quartzp. 104
Other Varieties of Quartzp. 104
Spinelp. 106
Spodumenep. 107
Hiddenitep. 107
Kunzitep. 107
Topazp. 108
The Many Shades of Bluep. 108
Champagne Topazp. 109
Imperial Topazp. 110
Pink Topazp. 111
White Topazp. 111
Other Varietiesp. 112
Tourmalinep. 112
Indicolitep. 113
Paraiba Tourmalinep. 114
Rubellitep. 114
Watermelon Tourmalinep. 115
Other Colorsp. 115
Turquoisep. 116
Zirconp. 117
Hyacinthp. 119
Zoisitep. 120
Tanzanitep. 120
Thulite and Other Varietiesp. 122
Chapter 10 Other Gems and Mineralsp. 123
Andalusitep. 123
Apatitep. 123
Azuritep. 124
Benitoitep. 124
Calcitep. 125
Danburitep. 125
Diopsidep. 126
Dioptasep. 126
Fluoritep. 127
Hematitep. 127
Iolitep. 128
Kyanitep. 129
Malachitep. 129
Milaritep. 130
Moldavitep. 130
Obsidianp. 131
Rhodochrositep. 131
Rhodonitep. 132
Scapolitep. 132
Serpentinep. 133
Sillimanitep. 133
Sodalitep. 134
Titanitep. 134
Weird Gems and Mineralsp. 135
Chapter 11 Jadep. 136
An Introduction to Jadep. 136
Shopping for Jadep. 137
The Importance of Colorp. 137
Jadeitep. 138
Nephritep. 138
Care and Cleaning of Jadep. 139
A Few Final Words of Advicep. 139
Chapter 12 Pearlsp. 141
An Introduction to Pearlsp. 141
Natural Pearlsp. 142
Cultured Pearlsp. 143
The Cultivation Processp. 143
Akoya Pearlsp. 144
Mabe Pearlsp. 145
Mabe Shellp. 145
Other Varieties of Pearlsp. 146
Pearls of the South Seasp. 146
Cultured Black Pearlsp. 147
Freshwater Pearlsp. 148
Natural Freshwater Pearlsp. 148
Cultured Freshwater Pearlsp. 148
Simulated Pearlsp. 149
Shopping for Pearlsp. 150
Lusterp. 150
Sizep. 150
Shapep. 150
Surfacep. 151
Colorp. 151
Getting Your Money's Worthp. 152
Disclosure: Policing the Industryp. 153
Care and Cleaning of Pearlsp. 153
Dan's Dissertation on Pearlsp. 154
Chapter 13 Other Organic Groupsp. 155
Background Informationp. 155
Amberp. 155
Coralp. 157
Jetp. 158
Ivoryp. 159
Tortoiseshellp. 160
General Guidelines for Care and Cleaning of Organicsp. 160
One Final Commentp. 160
Chapter 14 The Easy Reference Listsp. 162
The Jewelry Shopping Guidesp. 163
Birthstonesp. 166
Astral Stonesp. 168
The Chinese Zodiacp. 170
The Planetary Influencep. 171
Commemorative Stonesp. 173
Finding Gems and Minerals in Your Own Backyardp. 174
Key Properties of Gems and Mineralsp. 177
General Guidelines for Care and Cleaningp. 180
Glossary: Understanding the Language of Gemologyp. 183
Recommended Reading Materialsp. 188
Jndexp. 189
Greditsp. 192

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