Download or read book Beryllium Treated Rubies and Sapphires written by Ted Themelis and published by Ted Themelis. This book was released on 2003-01-01 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the product of self-supported and painstaking research work of 47 experiments on 30,000 natural and synthetic rubies and sapphires treated with beryllium by Ted Themelis in his thermochemical GEMLAB laboratory in Bangkok from May 2002 to January 2003. This book deals with the gemological and technical aspects in high temperature heat-treatment of rubies and sapphires with beryllium additives.
Download or read book The Heat Treatment of Ruby Sapphire written by Ted Themelis and published by . This book was released on 2018 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ruby and Sapphire written by Richard W. Hughes and published by . This book was released on 2017-01-01 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the dawn of time, ruby and sapphire have both attracted and fascinated humans in ways that few other items could.While objects of desire are found throughout the natural world, physical beauty is too often ephemeral. From the allure of a man, woman, flower or butterfly, through the fleeting moments of a sunset, there is little that lasts and practically nothing that can be passed down to our descendants. The exception is precious stones. Not only are they the most durable creations of mother nature, but their visual splendor is truly eternal.In this companion to his 2013 book, Ruby & Sapphire--A Collector's Guide, Richard Hughes examines these gems from the gemological standpoint, delving into these gems not just from the aesthetic, but also from the scientific point of view.The product of nearly 40 years of firsthand experience, it covers every aspect of the subject from A-Z. History, sources, prices, quality analysis, synthetics and treatments, everything is here. Ruby & Sapphire--A Gemologist's Guide represents the most comprehensive book ever written on a single precious stone. With over 1000 photos, maps and illustrations and 3500 references, it is nothing less than a tour-de-force of gemological scholarship.
Download or read book The Magic and Science of Jewels and Stones written by Isidore Kozminsky and published by . This book was released on 1922 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Heat Treatment of Ruby and Sapphire written by Ted Themelis and published by Ted Themelis. This book was released on 1992-01-01 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Book of Ruby and Sapphire written by J. F. Halford-Watkins and published by . This book was released on 2012-01-01 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prior to the 1930s, ruby and sapphire were mysteries, arcane gems oft-confused with spinel and other look-alikes. Enter Col. J.F. Halford-Watkins. Living in Mogok, Burma for more than two decades, he penned several articles and an entire monograph on the subject of these rare gems. Sadly he passed away before it could be published. In 1994, Richard Hughes came across a reference to the manuscript. Patrick Streeter, grandson of G. Skelton Streeter, and great grandson of the famed London jeweler, Edwin Streeter, had mentioned the Halford-Watkins manuscript while writing his book, Streeter of Bond Street. Following up on that obscure reference Richard Hughes stumbled upon something truly fantastic, an undiscovered treasure of the gemological literature. Over ten years in the making, The Book of Ruby & Sapphire is the realization of Halford-Watkins' vision. Professionally edited and illustrated, it represents a gemological tour de force.
Download or read book Gems and Gemstones written by Lance Grande and published by University of Chicago Press. This book was released on 2009-11-15 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Gems and Gemstones" features nearly 300 color images of cut gems, precious and semiprecious stones, gem-quality mineral specimens, and fine jewelry to be unveiled in the new Grainger Hall of Gems at the Field Museum in Chicago.
Download or read book Russian Alexandrites written by Karl Schmetzer and published by . This book was released on 2010 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: Alexandrite, a variety of chrysoberyl, and one of the finest colour-change natural gemstones, may almost be called "the national gemstone of Russia". This great prestige is based on two facts: its noble name in honour of the Tsarevich Alexander Nikolaevich (the future Tsar Alexander II) and its dazzling colours, green in daylight and red in incandescent light, the military colours of Imperial Russia. Although quantities of facetable quality alexandrite are considerably less than those of emerald, alexandrite is counted among and compared to the "big four" of the gem business: diamond - ruby - sapphire - emerald. In this book the authors present an historical overview of emerald mining in the Urals, the discovery of Russian alexandrites in the Uralian emerald mines, the naming and historical use of alexandrites and their appearance and display in mineralogical museums and the gem trade. Morphology and twinning of rough alexandrite is described for single crystals, single contact twins and cyclic twins (trillings). Mineralogical and gemmological properties are thoroughly explained and numerous photo-micrographs of inclusions and growth patterns in faceted samples are presented. Chatoyancy and asterism of alexandrite and chrysoberyl from Russia and Sri Lanka are also described. A further chapter deals with characteristic growth patterns of Russian, other natural and synthetic alexandrites. Colorimetric data of Russian alexandrites and green chrysoberyls are explained using the CIELAB colour space, and the distinction between these varieties is explained. A chapter on trace element chemistry and locality determination rounds off the book. An extensive appendix containing lists of historical names, a time table and numerous references provides valuable information on Russian alexandrites for all researchers in the mineralogical and gemmological fields as well as for gemmological laboratories, jewellers and gem dealers. Consequently, this book, illustrated with more than 200 colour figures and photographs, addresses mineralogists, gemmologists, historians, mineral and gem collectors as well as all members of the gem trade.
Download or read book Surface Studies of Heat treated Natural Rubies and Sapphires written by Supakit Achiwawanich and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat treatment of ruby and sapphire has been extensively practised in order to enhance their visual appearance. Even though research on the bulk properties of the gemstones has been performed comprehensively, surface studies of heat-treated natural ruby and sapphire are very limited. The aims of this thesis are: to demonstrate potential capacities of non-invasive surface techniques including X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) on the natural Mong Hsu ruby and Kanchanaburi sapphire, and to elucidate surface effects after heat treatments in different atmospheric conditions commonly practised in the commercial arena. Preliminary studies using cathodoluminescence (CL) and X-ray computerised tomography (XCT) on heat treated gemstones are also given in the thesis.
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:
Download or read book The Physics and Chemistry of Color written by Kurt Nassau and published by Wiley-Interscience. This book was released on 2001-07-27 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: An updated and revised second edition of the acclaimed classic Have you ever wondered why the sky is blue, or a ruby red? This classic volume studies the physical and chemical origins of color by exploring fifteen separate causes of color and their varied and often subtle occurrences in biology, geology, mineralogy, the atmosphere, technology, and the visual arts. It covers all of the fundamental concepts at work and requires no specialized knowledge. Author Kurt Nassau includes hundreds of illustrations, tables, and photographs-as well as end-of-chapter problems-that aid in visualizing the concepts discussed. An updated bibliography permits readers to pursue their own particular interests and an expanded series of appendices cover advanced topics. The Physics and Chemistry of Color, Second Edition is a one-of-a-kind treatment of color that provides both detailed physical and chemical properties of color and a more general overview of the subject. It will prove highly useful to specialists and non-specialists alike-and fascinate those with varied interests from optics to art history.
Download or read book Mineralogy and Geochemistry of Gems written by Panagiotis Voudouris and published by MDPI. This book was released on 2020-03-10 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gems have been used in the manufacture of jewellery and as ornaments since antiquity. Considering gems, recent statistics have shown that about 15 billion Euros are annually at stake. Nowadays, gemmology, i.e., the study of gem materials, is one of the most expanding fields in the earth sciences, positioned between academia and industry. As an applied science, in gemmology, the instruments used should be non- or microdestructive, and their cost should be reasonable both in terms of equipment and time consumption. Gemmology can also be used contribute to the development of pure science and in some cases, destructive techniques may have to be used. Taking into account the fact that gems are albeit rarely available for scientific research, this compilation of 20 articles by around 100 researchers from over 30 different institutions situated in 20 countries from around the globe, presented in the Special Issue entitled “Mineralogy and Geochemistry of Gems”, offers very good examples on the application of various methods for their study which will hopefully contribute to our better understanding of gem formation in general and will enhance scientific debates attracting more scientists from various disciplines to get involved in this field.
Download or read book A Book of Precious Stones written by Julius Wodiska and published by . This book was released on 1918 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Gemstones written by Cally Hall and published by DK Publishing (Dorling Kindersley). This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unearth a treasure trove of knowledge of over 130 gemstones from around the world. Learn how gemstones are formed and how to recognise them by their unique qualities and colours. A wonderful book for beginners, students, and gemstone-enthusiasts that includes the latest scientific research and gemstone classification. Gemstones is filled with all you need to know about these fascinating minerals - cut and uncut stones, organic gemstones, and precious metals. Inside you'll find: - Fast facts for quick reference, including chemical composition, hardness, gravity, lustre, and reflective value - Photo close-ups of key details and highlights of distinguishing features - Illustrations of faceting and shapes popular for each gemstone - A detailed introduction to everything a beginner gemologist needs to know including how gemstones form, the different properties, crystal shapes, faceting, and the history of gems Delve into the one-of-a-kind characteristics, colours, and attributes of more than 130 gemstones with this compact visual guide. For easy classification, each stone's entry includes annotated photographs to highlight distinguishing features and concise details about the attributes of gems. Designed for beginners and experienced collectors alike, this gemology book explores what gemstones are, how they are classified, and how to identify them by their physical and optical properties. It also shows you how they were fashioned and imitated throughout history. Learn the differences between varieties of cut and uncut stones, organic gemstones, and precious metals. It includes a glossary for many more technical and scientific terms and over 800 high-quality photos of gems. It's the ideal gift for any budding gemologist The DK Handbook series is an incredible collection of titles that fascinate curious minds. Other books include Rocks and Minerals, Dinosaurs, and Prehistoric Life, and Stars and Planets.
Download or read book Extraordinary Vessels written by Kiiko Matsumoto and published by Paradigm Publications. This book was released on 1986 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most detailed exposition of the vessels in the English language.
Download or read book Streeter of Bond Street written by Patrick Streeter and published by . This book was released on 1993 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
