Download or read book Gemologue written by Liza Urla and published by Antique Collector's Club. This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liza Urla is the author of the jewelry blog, Gemologue https://gemologue.com/tag/jewelry-blog
Download or read book Minerals and Precious Stones of Brazil written by Carlos Cornejo and published by . This book was released on 2010 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Brazil was the leading world producer of gold and of diamonds between the mid-18th century and the mid-19th century. At the present time, it is the leading world producer of iron ore, tin and niobium, and an important producer of manganese, aluminium, silicon, tantalum, rare earths, graphite, magnesite and countless other ores.....Brazil is the leading world producer of tourmaline (of all colors), of quartz (colorless, rutilated, amethyst and agate), of beryl (aquamarine, morganite and heliodore, and the second ranking world producer of emerald), of topaz (imperial, blue and colorless), alexandrite, euclase, phenakite and many others" INTRODUCTION.
Download or read book Brazil Paradise of Gemstones written by Jules Roger Sauer and published by . This book was released on 1982 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Brazil written by Jane Ladle and published by Langenscheidt Publishing Group. This book was released on 1999 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insight Guides, the world's largest visual travel guide series, in association with Discovery Channel, the world's premier source of nonfiction entertainment, provides more insight than ever. From the most popular resort cities to the most exotic villages, Insight Guides capture the unique character of each culture with an insider's perspective. Inside every Insight Guide you'll find:.Evocative, full-colour photography on every page.Cross-referenced, full-colour maps throughout.A brief introduction including a historical timeline .Lively, essays by local writers on the culture, history, and people.Expert evaluations on the sights really worth seeing.Special features spotlighting particular topics of interest.A comprehensive Travel Tips section with listings of the best restaurants, hotels, and attractions, as well as practical information on getting around and advice for travel with children
Download or read book Natal Stones written by George Frederick Kunz and published by . This book was released on 1909 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 A Book of Precious Stones written by Julius Wodiska and published by . This book was released on 1909 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Jewelry Gems The Buying Guide 7th Edition written by and published by Gemstone Press. This book was released on 2009 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Phenomenal Crystals written by Ilia Deleff and published by . This book was released on 2004 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The author headed for South America at the age of twenty-five with a clear aim ""to do something in [his] life."" Fascinated by the beauty of quartz crystals in Brazil, he started to collect them enthusiastically and he is now the only collector of giant crystals in the world. Conquered by their secret power and the perfection of their forms, he penetrated the intimate world of crystals and marveled at the magnificent play of light reflected on their smooth faces. Some of the phenomenal crystals ""survived"" hundreds of millions of years untouched. Contents include: The journey of one's life, The collections of phenomenal giant crystals and their fate, The mineral treasures of Brazil."
Download or read book Gemstones of the World written by Walter Schumann and published by N. A. G. Press. This book was released on 2001 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive manual of the world's gemstones and includes more than 1,400 examples. Opposite each illustration, this text provides a description of the particular stone, including details of the properties and chemical composition which makes the stone unique. It also gives information on location of major deposits, and alternative names.
Download or read book Quartz Deposits Mineralogy and Analytics written by Jens Götze and published by Springer Science & Business Media. This book was released on 2012-04-23 with total page 365 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book will include contributions of the state of the art of quartz raw materials (deposits and properties) and their analytics. The chapters are presented by leading scientists in the quartz field. The presentations cover the main interrelations between genesis of quartz - formation of specific properties - analytics - industrial applications of SiO2 raw materials.
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 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 Gemstones written by Robin Hansen and published by Princeton University Press. This book was released on 2022-04-12 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published: London: Natural History Museum, 2022, as: The Natural History Museum book of gemstones: a concise reference guide.
