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Author: Robert Webster
Publisher: Van Nostrand Reinhold Company
ISBN:
Category : Design
Languages : en
Pages : 264
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Book Description
Author: Robert Webster
Publisher: Van Nostrand Reinhold Company
ISBN:
Category : Design
Languages : en
Pages : 264
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Book Description
Author: Robert Webster
Publisher:
ISBN:
Category : Gems
Languages : en
Pages : 244
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Book Description
Author: Robert Webster
Publisher:
ISBN: 9780719800016
Category : Gems
Languages : en
Pages : 235
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Book Description
Author: Antoinette Matlins
Publisher: Turner Publishing Company
ISBN: 0943763894
Category : Antiques & Collectibles
Languages : en
Pages : 366
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Book Description
one person can accomplish big things.
Author: Antoinette Matlins
Publisher: Turner Publishing Company
ISBN: 0943763932
Category : Antiques & Collectibles
Languages : en
Pages : 467
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Book Description
This colorful book offers you a window into the world of Mahatma Gandhi, one of the most amazing people of the twentieth century. You will learn about Gandhi’s life—from his time as a student in London to his work for equality in South Africa and India—and his methods of peaceful, but not passive, resistance to injustice.
Author: Peter G Read
Publisher: Elsevier
ISBN: 1483183122
Category : Nature
Languages : en
Pages : 241
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Book Description
Beginner's Guide to Gemmology presents the profiles of the principal gem materials. This book discusses the interesting characteristics of gemstones as the growing consumer market jewelry resulted in increased sales of gem testing instruments. Organized into 12 chapters, this book begins with an overview of the development of the science of gemmology. This text then explains the fundamental qualities necessary in a gem, including color, hardness, specific gravity, crystallography, refractive index, pleochroism, critical angle, luminescence, and absorption spectra. Other chapters consider the organic gem materials, including amber, ivory, coral, tortoiseshell, jet, ebony, and pearl. This book discusses as well the various methods used in the production of man-made gemstones and the commercial use in gem testing. The final chapter deals with the composition of synthetic gemstones. This book is a valuable resource for gemmologists and jewelers. Students who intend to become a qualified gemologist will also find this book extremely useful.
Author: Mohsen Manutchehr-Danai
Publisher: Springer Science & Business Media
ISBN: 3662042886
Category : Science
Languages : en
Pages : 575
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Book Description
The rapid growth of gemological sciences and mineralogy demands a dictionary such as this for gemologists, mineralogists, geologists, jewel dealers, industry and hobbyists. With some 16,000 comprehensive definitions, supplemented by more than 250 diagrams and figures, this is a one-stop reference to any matter dealing with gems and gemology.
Author: Peter G Read
Publisher: Elsevier
ISBN: 1483192261
Category : Science
Languages : en
Pages : 341
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Book Description
Gemmological Instruments deals with the developments in diamond grading equipment and gem testing instruments since the publication of the first edition in 1978. These developments include improvements in the versatility and styling of existing instruments such as the reflectivity meter, the composite spectroscope, and the refractometer. It also addresses the criticisms in the first edition and provides a discussion of the advantages and disadvantages of different gem testing equipment. This book is organized into 16 chapters that describe groundbreaking instruments like the thermal conductivity diamond testers and home-constructed items that while innovative have not yet been commercialized. There are also chapters dealing with microphotography and identification of synthetics and stimulants. This book also provides a listing of gemstone constants and characteristic inclusions in natural and synthetic gemstones. This book will be of interest to people interested in equipment for gem testing and diamond grading.
Author:
Publisher:
ISBN:
Category : Gems
Languages : en
Pages : 888
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Book Description
Author: H. G. Jerrard
Publisher: Springer Science & Business Media
ISBN: 9401122946
Category : Science
Languages : en
Pages : 248
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Book Description
units have been included. References, which now number approximately 650, have been brought up to date. The most recently accepted values of the physical constants have been provided. Our thanks go to all those who, since the fifth edition, have helped in this revision by suggestions. In particular the authors express their gratitude to Jane M. Jerrard who, with enthusiasm, put the text into a computer and eliminated the editorial scissors and paste and simplified the onerous and long task of producing a text from the fragmented material of the revision. In the preface to the fifth edition it was suggested that the book provided at that time the most complete and up-to-date information of its kind available. The authors again make the same claim for this sixth edition. H. G. JERRARD D. B. McNEILL Warsash Newtownards Southampton Northern Ireland England Preface to the first edition The intense specialization that occurs in science today has meant that scientists working in one field are often not familiar with the nomenclature used by their colleagues in other fields. This is particularly so in physics. This dictionary is designed to help overcome this difficulty by giving information about the units, dimensionless numbers and scales which have been used, or are still being used, throughout the world. Some four hundred entries are provided and these are supplemented by about five hundred references. The definition of each entry is given together with relevant historical facts.
