Download or read book The Gemmologist written by and published by . This book was released on 1961 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Secrets of the Gem Trade written by Richard W. Wise and published by Brunswick House. This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finally the real truth about how master jewellers, gemmologists and major auction houses value diamonds and colored gemstones.
Download or read book Gemmologists Compendium written by Robert Webster and published by Antique Collectors Club Limited. This book was released on 1979 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part of the book is a comprehensive glossary of gemstones and the terms used in connection with them. The second part contains tables of essential information for gem identification. There are also sections on such useful topics as cuts for gemstones, synthetic and manufactured gems, test for precious metals and conversion formulae.
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.
Download or read book The Gemmologists Compendium written by Robert Webster and published by . This book was released on 1947 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gem Identification Made Easy 6th Edition written by Antoinette Matlins and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gem Identification Made Easy is the first and only book that explains in non-technical terms how to identify diamonds and colored gems, and how to separate natural gems from imitations, treated stones, synthetics, and look-alikes. The book's approach is direct and practical, and its style easy to understand. In fact, with this highly accessible guide, anyone can begin to master gem identification. Includes over 150 photographs and illustrationsover 80 in full color! Using a simple, step-by-step system, the authors explain how to properly use essential but uncomplicated instruments to identify stones, what to look for gemstone by gemstone, and how to set up a basic lab at modest cost. Three of the instruments are inexpensive, portable, pocket instruments that, when used together, can identify almost 85% of all precious and popular stones. The key to avoiding costly mistakes and recognizing profitable opportunities is knowing both what to look for and what to look out for. Gem Identification Made Easy will help you: Open your eyes to the types of treatments, imitations, synthetics, look-alikes, and fakes in the gem market today. Learn how to tell the difference between them. Quickly spot: Synthetics, including synthetic emeralds and diamonds Filled diamonds Diffused "blue" sapphires and "red" rubies HPHT-treated diamonds ... and much more! Determine how to spot the newest "composite" imitations. Learn how to identify recently discovered gems such as "Mandarin" garnet, red "emerald," and North Carolina's chromium-rich emeralds. Discover new treatments such as surface coatings to create "fancy color" diamonds and improve or change the color of many gemstones. Know when to seek help from a professional gemologist or lab. Become more professional in your business or hobby.
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.
Download or read book Gem Stones of the United States written by Dorothy McKenney Schlegel and published by . This book was released on 1957 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Global Diamond Industry written by Roman Grynberg and published by Springer. This book was released on 2016-01-05 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Global Diamond Industry: Economics and Development brings together a collection of papers covering various aspects of the diamond industry including economics, law, history, sociology and development across two volumes.
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.
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.
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:
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.
Download or read book Mantle Metasomatism and Alkaline Magmatism written by Ellen Mullen Morris and published by Geological Society of America. This book was released on 1987-01-01 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Raman Spectroscopy in Archaeology and Art History written by Peter Vandenabeele and published by Royal Society of Chemistry. This book was released on 2018 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 1. Ramen spectroscopy allows the non-destructive examination of objects of archaeological and historical importance to characterise their chemical composition and structure and help determine their provenance. The authors give an explanation of Raman spectroscopy and an introduction to the techniques used. Seventeen case studies are given to show work on : dyes and pigments ; artefacts ; biological materials and degradation ; and jewellery and precious stones. It also describes a database of 74 Raman spectra of standard minerals of relevance to metal corrosion, stained glass, and prehistoric rock art.
Download or read book Raman Spectroscopy Applied to Earth Sciences and Cultural Heritage written by J. Dubessy and published by The Mineralogical Society of Great Britain and Ireland. This book was released on 2012-11-20 with total page 519 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spectroscopic methods such as Raman are used to investigate the structure and dynamics of matter. They are essential for the study of the different types of mineral or organic materials produced at the Earths surface or interior. As a result of technological improvements in gratings, detectors, filters and personal computers in the last decade, many micro-Raman spectrometers have become plug-and-play instruments, very easy to use and available at a lower cost than the early Raman microprobes. Thus, many laboratories in Earth Sciences and Cultural Heritage are equipped with these new spectrometers. Commercial, portable Raman spectrometers working in the field have also contributed to the spread of Raman spectroscopy. Poor levels of education in terms of Raman spectroscopy in undergraduate courses in Earth Sciences make it difficult for individuals to obtain information of the highest quality relevant to Earth sciences and Cultural Heritage. This volume is, therefore, timely. Four main topics are addressed: Theory; Methodology, including the instrumentation; Experimental aspects; and Application.
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.
