Download or read book Eleventh Annual Sinkankas Symposium Ruby written by Lisbet Thoresen and published by . This book was released on 2014-02-07 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Eleventh Annual Sinkankas Symposium - Ruby, revised edition (2014)
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 Thirteenth Annual ASCP Basic Science Research Symposium written by Frank Vellios and published by . This book was released on 1979 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thirteenth Annual Sinkankas Symposium Opal written by Stuart Overlin and published by . This book was released on 2015-04-18 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Thirteenth Annual Sinkankas Symposium - Opal
Download or read book Seventeenth Annual Sinkankas Symposium Agate and Chalcedony written by Lisbet Thoresen and published by . This book was released on 2021-06 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the Seventeenth Annual Sinkankas Symposium - Agate and Chalcedony
Download or read book Fourteenth Annual Sinkankas Symposium Sapphire written by Stuart Overlin and published by . This book was released on 2017-04-08 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Fourteenth Annual Sinkankas Symposium - Sapphire is the official publication of the final program and articles prepared for the annual one-day event held on April 8, 2017 at GIA in Carlsbad, California. Co-sponsored by the Gemological Society of San Diego and The Gemological Institute of America.
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 Critical Mineral Resources of the United States written by K. J. Schulz and published by Geological Survey. This book was released on 2017 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the importance and dependence of specific mineral commodities increase, so does concern about their supply. The United States is currently 100 percent reliant on foreign sources for 20 mineral commodities and imports the majority of its supply of more than 50 mineral commodities. Mineral commodities that have important uses and face potential supply disruption are critical to American economic and national security. However, a mineral commodity's importance and the nature of its supply chain can change with time; a mineral commodity that may not have been considered critical 25 years ago may be critical today, and one considered critical today may not be so in the future. The U.S. Geological Survey has produced this volume to describe a select group of mineral commodities currently critical to our economy and security. For each mineral commodity covered, the authors provide a comprehensive look at (1) the commodity's use; (2) the geology and global distribution of the mineral deposit types that account for the present and possible future supply of the commodity; (3) the current status of production, reserves, and resources in the United States and globally; and (4) environmental considerations related to the commodity's production from different types of mineral deposits. The volume describes U.S. critical mineral resources in a global context, for no country can be self-sufficient for all its mineral commodity needs, and the United States will always rely on global mineral commodity supply chains. This volume provides the scientific understanding of critical mineral resources required for informed decisionmaking by those responsible for ensuring that the United States has a secure and sustainable supply of mineral commodities.
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 Pearl Buying Guide written by and published by . This book was released on 1992 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific Investigation of Copies Fakes and Forgeries written by Paul T. Craddock and published by Routledge. This book was released on 2009 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Scientific Investigation of Copies, Fakes and Forgeries is a comprehensive guide to the technical and scientific study of the authenticity of a wide range of antiquities and artworks. It is the first book to provide a full survey of the subject of forgery from a scientific basis, examining a wide range of materials and techniques." "The demand for copies, fakes and forgeries is driven by rising prices in an international marketplace. The book examines the available new technologies and ever more sophisticated forging techniques, looking at production and distribution of fraudulent artworks. The subject is exemplified by numerous internationally based case studies, some turning out not to be as conclusive as is sometimes believed." "The book is aimed at those who need to understand the available approaches to and methods of scientific and technical authentication, be they curator, collector, conservator or scientist." --Book Jacket.
Download or read book The Periodic Table Nature s Building Blocks written by J. Theo Kloprogge and published by Elsevier. This book was released on 2020-11-18 with total page 931 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Periodic Table: Nature’s Building Blocks: An Introduction to the Naturally Occurring Elements, Their Origins and Their Uses addresses how minerals and their elements are used, where the elements come from in nature, and their applications in modern society. The book is structured in a logical way using the periodic table as its outline. It begins with an introduction of the history of the periodic table and a short introduction to mineralogy. Element sections contain their history, how they were discovered, and a description of the minerals that contain the element. Sections conclude with our current use of each element. Abundant color photos of some of the most characteristic minerals containing the element accompany the discussion. Ideal for students and researchers working in inorganic chemistry, minerology and geology, this book provides the foundational knowledge needed for successful study and work in this exciting area. Describes the link between geology, minerals and chemistry to show how chemistry relies on elements from nature Emphasizes the connection between geology, mineralogy and daily life, showing how minerals contribute to the things we use and in our modern economy Contains abundant color photos of each mineral that bring the periodic table to life
Download or read book Gemstones and Their Origins written by P.C. Keller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each gem deposit-whether of primary origin in the parent rocks; or secondary as alluvial placers in valley floors, river gravels, or the sand of oceanic shelves presents an eloquent chronicle of the Earth's life story. It reveals to the expert the prodigious processes which formed the present crust of our planet, of which this volume discloses a small but exciting detail. The materials of the Earth's crust are the rocks. In this book, the author expounds on how they were formed, why they altered, why they became the cradles of precious gemstones, how they are categorized, and how they are now exploited by man. What initiates the growth of gemstones? How do they crystallize? Why do gemstones of the same species, originating from different sources, vary? What causes the occurrence of varieties? Why do diamonds, unlike other precious stones, occur not near the Earth's surface in its crust, but deep down beneath it in the upper mantle? These are only a few of the entrancing subjects discussed in this enlightening volume. The reader learns that the Earth is surprisingly alive and altering constantly-sometimes through slow and equable changes and at times by violent and tremendous cataclysms, events from which gemstones issue.
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:
Download or read book Illustrated Guide to Jewelry Appraising written by Anna M. Miller and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is more to appraising jewelry than just being parable sales and a value determination. Then, all this able to put a dollar value on an item. The title of ap information, with clear jewelry descriptions, must be praiser distinguishes the individual who is able to iden succinctly put together with photographs and deliv tify, witness, estimate status, excellence, or potential ered to the client. ity, and to determine the authenticity of an article. Today's jewelry appraiser should also be cognizant Many factors impact on a thorough appraisal, espe of the vicissitudes of fashion, how changes impact the cially on estate and period jewelry. jewelry market in a substantial and vital manner in both design and style. A careful look must be given to Developing all this expertise is a lot to ask of practi tioners who only a decade ago were barely making a study of color psychology with an awareness of why specific gemstones and their colors and enamels of cer distinction between a well-written sales receipt and a professional appraisal report. tain colors were used in different periods. Industrial In the past few years bold changes have taken place developments, from machine stamped jewelry, the use in this field. It is now understood that standard ap of aniline dyes in clothing, and development of the praisal concepts and principles can be applied to the electric light, have influenced design and use of gem stones.
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 Proceedings written by Dianne M. Eash and published by . This book was released on 1982 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
