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Gemmology
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Download or read book Gemmology written by Peter G. Read and published by Butterworth-Heinemann. This book was released on 2005 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 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.
Download or read book Gemmology written by P. G. Read and published by Elsevier. This book was released on 2013-10-22 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gemmology is a text for students preparing for the Gemmological Association's Preliminary and Diploma examinations. The book is more expansive and up-to-date than the author's earlier book, Beginner's Guide to Gemmology. The book deals with the practical and theoretical sides of gemmology. Tracing the background and science of gemmology, the book covers the gem material, geological formation, and occurrence of gemstones on the earth. The composition of gemstones from the atoms, elements, molecules, and compounds comprising them is analyzed, and the relationship between chemical composition and durability of the stone is explained. The basics of crystallography is mentioned as a tool toward understanding gemmology after which cleavage, parting, and fracture are done. A gemstone's durability and hardness and how the latter influences engineering tests and the mining techniques are compared. An important test technique to identify unmounted stones is the measure of specific gravity using displacement measurement methods and hydrostatic methods. After more descriptive details are given in identification of gemstones, whether these are synthetic or simulants, through a comprehensive explanation of the materials found in these other gemstones, the fashioning, through shaping or polishing, of gemstones is explained. Emphasis is given on the critical angle in which light rays pass in different rock densities, and then the cutting styles, gemstone polishing, and grading are discussed. Students studying for the Gemmological Association's Preliminary and Diploma examinations, jewelers, lapidarists, and diamond cutters, as well as those engaged in the hobby of gemmology, will find this book helpful and full of information toward their endeavors and hobbies.
Book Synopsis Gems and Gemmology by : Stefanos Karampelas
Download or read book Gems and Gemmology written by Stefanos Karampelas and published by Springer Nature. This book was released on 2020-03-10 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a lucid introduction to the basics of gemmology. It familiarizes archaeologists, art historians and conservators with the science of gemstones and allows them to understand the basic concepts of their provenance, typology and treatments. Which are the main types of gems? What treatments can be applied? How does one analyse gems? How can gems contribute to archaeometrical research? This volume is written by four experts in the fields of gemmology and archaeometry and addresses both students who need an introduction to this field and professionals who want to refresh their knowledge of the topic. This work is part of a series of introductory texts that deal with a broad range of materials-related topics in archaeometry.
Book Synopsis Beginner's Guide to Gemmology by : Peter G Read
Download or read book Beginner's Guide to Gemmology written by Peter G Read and published by Elsevier. This book was released on 2013-10-22 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Practical Gemmology by : Robert Webster
Download or read book Practical Gemmology written by Robert Webster and published by . This book was released on 1957 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Practical Gemmology by : DeeDee Cunningham
Download or read book Practical Gemmology written by DeeDee Cunningham and published by Robert Hale. This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Gemology written by Cornelius S. Hurlbut and published by . This book was released on 1979 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concise, systematic, yet comprehensive ``textbook'' treatment of the science. Examines origin, chemistry, crystallography, physical properties, and optical properties of gemstones, and discusses methods and instruments used to determine these properties. Highlights recent advances and important contributions; explores new methods of study and determination, crystal structures, causes of color, new gem minerals, new methods of gem synthesis, manufactured gems, chemical compounds used as substitutes, and imitations and simulations. Includes 12 full color plates, 350 halftones and line drawings, and a Gem Index that lists commonly sought characteristics along with page number references.
Book Synopsis Practical Gemmology - A Study of the Identification of Gem-Stones, Pearls and Ornamental Minerals by : Robert Webster
Download or read book Practical Gemmology - A Study of the Identification of Gem-Stones, Pearls and Ornamental Minerals written by Robert Webster and published by Read Books Ltd. This book was released on 2013-04-18 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: This vintage book contains an interesting and practical study of the identification of gemstones, pearls, and ornamental minerals. A comprehensive and profusely-illustrated handbook for both novice and experienced practitioners, this volume is not to be missed by anyone with a keen interest in the subject. The chapters of this book include: “Crystallography”, “Physical Properties”, “Specific Gravity”, “Light”, “Measurement of Refractive Index”, “Colour in Gem Distinction”, “The Microscope”, “The Gem Species”, “Synthetic Gems”, “Imitation Gems”, “Composite Stones and Artificially Induced Colour”, etcetera. This book is being republished now in an affordable, modern, high quality edition - complete with a specially commissioned new introduction on gemmology.
Book Synopsis Gemmological Instruments by : Peter G Read
Download or read book Gemmological Instruments written by Peter G Read and published by Elsevier. This book was released on 2013-09-24 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Photoatlas of Inclusions in Gemstones by : Eduard Josef Gübelin
Download or read book Photoatlas of Inclusions in Gemstones written by Eduard Josef Gübelin and published by . This book was released on 2005 with total page 829 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Spectroscope and Gemmology by : Basil Anderson
Download or read book The Spectroscope and Gemmology written by Basil Anderson and published by Robert Hale. This book was released on 2006-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Until 1933, the refractometer and the microscope were the two principal tools in gem testing. Then B.W. Anderson introduced the hand spectroscope which quickly became the third vital instrument for the UK gemmologist. Anderson and his lifelong colleague, Payne, both of the world's first full-time gemmological laboratory, were the pioneers in recognizing the vast potential of the spectroscope, and The Spectroscope and Gemmology is the extensively edited, updated, and enlarged version of Anderson's original papers. The distinguished gemmologist R. Keith Mitchell undertook the editing and added of chapters on the Pye spectrophotometer and on lasers. He also reproduced new line drawings of spectra in three aspects to accommodate the prism instrument in both the British version and in that favored by American gemmologists, and in another version as seen through the diffraction grating instrument.
Book Synopsis Gem Testing by : Basil William Anderson
Download or read book Gem Testing written by Basil William Anderson and published by . This book was released on 1947 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gem written by DK and published by Penguin. This book was released on 2023-03-07 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepare to be dazzled by this shining and sumptuous visual guide to the world's greatest treasures. Feast your eyes on glittering gemstones, kaleidoscopic minerals, and famous trinkets in this comprehensive exploration of Earth's finest jewels. Following a foreword from Aja Raden, hundreds of pages take a lavish look at precious stones, precious metals, and organic gems in all their natural wonder. From agate to zoisite, everything under the Sun is encapsulated in spectacular photography and accessible text. Trace the history of gemmology and get the inside story on our planet's most famous and fabulous gems, including the mysterious Hope Diamond, the stunning Koh-i-Noor of the Crown Jewels, and exquisite Fabergé eggs. Find out their physical properties, check the price tags, and discover the most remarkable record-breakers. This exceptionally extravagant book is a picture-packed, fact-filled celebration guaranteed to bring sparkle to your life and your library.
Book Synopsis Tables of Gemstone Identification by : Roger Dedeyne
Download or read book Tables of Gemstone Identification written by Roger Dedeyne and published by Gemstone Identification. This book was released on 2007 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Perfect Gemology - Selection of Gems by : Ram Babu Sao
Download or read book Perfect Gemology - Selection of Gems written by Ram Babu Sao and published by . This book was released on 2019-02-19 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book, "Perfect Astrology (Gemstone)" provides best technique for selection of the beneficial Gemstone for prosperity in the successful ventures like Business, Buying a Home, Marriage, Love affair or Investing in Stock Market and making your life more beautiful, prosperous, happy and energetic with respect to wealth, Health, love, marriage and carrier than ever before. You can select the most suitable and empowering gemstones and are bound to experience true "Harmony, Success and Money, which will make you prosperous, healthy and successful. Power of Gemstone; A to Z Gemstones, Primary Gemstones, Secondary Gemstones & their Weight, Characteristics; Identification of pure Gemstone; Power & Quality of Gemstones; Selection of Proper Gemstones; for Anukul-graha; Gems for running Mahadasha Planet; Gems for Moon Sign (Rashi), Janma Nakshatra, Sun-Sign, Influencing planet, Gems for Special Consideration, Month of Birth, Season of Birth, Birth Cairo Number and other priority Basis; Reasons for failure of gemstones; Selection of Secondary Gemstones; Method of Wearing the Gemstones; Remedial Mantra & other Remedies; The Science of Yantras; Medical Healing Gemstones; and Cosmic Rays Healing. Example: Gemstone Selection of Cancer (Karka) Lagna. Mars (Kuja) is L-5+ L-10 measured from Cancer (Karka) Ascendant, Karka Chandra, and Karka Navamsha. Mars being lord of the 5th a trine (Trikona) and 10th house quadrant (Kendra) is very auspicious or benefic and Rajayoga Karaka planet and is also friend of Moon, the lord of Ascendant. If Mars occupies Trine or Kendra or own house or is exalted in the horoscope, Mars will provide name, fame, popularity, good public roles, professional leadership. The Native should always wear flawless Red coral and he will be blessed with children, intelligence, good fortune, name, fame, honours and success in their professional career and competitions. This book and is truly equivalent of several books on Gemstones selection.
Download or read book The Journal of Gemmology written by and published by . This book was released on 2002 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for July 1964 include Proceedings of the Gemmological Association of Great Britain.
Book Synopsis Artificial Gemstones by : Michael O'Donoghue
Download or read book Artificial Gemstones written by Michael O'Donoghue and published by Robert Hale. This book was released on 2007-11-30 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This title is now in paperback for the first time.Artificial gemstones have been well established in the trade for some time, but now, following further refinements in their manufacture, gemmologists worldwide are facing increasing problems with identification.Today, gem-quality synthetic diamonds, once deemed impossible to produce, are becoming widely available, and, moreover, it is possible to create almost any major gemstone in whatever colour is desired. Then, too, the growth of diamonds by chemical vapour deposition is destined to present further problems. The synthetic products of the past, particularly of the 1960s, are still available, and are puzzling the newer generations of gemmologists who have not encountered them previously.In "Artificial Gemstones", Michael O'Donoghue provides the definitive guide to the various manmade substitutes thus enabling anyone handling gems to identify them accurately. Starting with the theory of synthetic gem manufacture and an explanation of the production methods used for growing and/or improving crystals - with their ornamental application - the book moves on to list and identify the materials themselves. Some of these have natural counterparts; others are new minerals and do not occur in nature. The author lists the identifying internal and external features and tests, and the book contains colour illustrations to display the inclusions found in transparent materials. The book is completed by an extensive bibliography and a useful appendix of trade names.Gemmologists, gem dealers, lapidaries, curators, amateurs and students of gemmology and mineralogy will all find this an indispensable addition to their bookshelves.
