Minerals and Precious Stones of Brazil PDF Download
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Author: Carlos Cornejo
Publisher:
ISBN: 9788589820080
Category : Gemology
Languages : en
Pages : 704
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Book Description
"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.
Author: Carlos Cornejo
Publisher:
ISBN: 9788589820080
Category : Gemology
Languages : en
Pages : 704
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Book Description
"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.
Author: Liza Urla
Publisher: Antique Collector's Club
ISBN: 9781851498819
Category : Antiques & Collectibles
Languages : en
Pages : 0
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Book Description
Liza Urla is the author of the jewelry blog, Gemologue https://gemologue.com/tag/jewelry-blog
Author: Julius Wodiska
Publisher:
ISBN:
Category : Precious stones
Languages : en
Pages : 482
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Book Description
Author: Lance Grande
Publisher: University of Chicago Press
ISBN: 0226305112
Category : Design
Languages : en
Pages : 387
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Book Description
"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.
Author: George Frederick Kunz
Publisher:
ISBN:
Category : Gems
Languages : en
Pages : 28
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Book Description
Author: Dorothy McKenney Schlegel
Publisher:
ISBN:
Category : Precious stones
Languages : en
Pages : 64
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Book Description
Author: Kennie Lyman
Publisher: Touchstone
ISBN: 9780671604301
Category : Nature
Languages : en
Pages : 388
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Book Description
Simon & Schuster's Guide to Gems and Precious Stones provides both the connoisseur and the casual collector with a compact, easy-to-use volume describing more than 100 rare varieties of minerals whose beauty and mystery have possessed our imaginations from time immemorial. More than 450 brilliant photographs accompany profiles of each gem, covering such aspects as appearance, physical properties -- density, hardness, refraction -- occurrence, and how to judge quality and value. Additional sections describe the process of cutting gemstones and the techniques professional gemologists use to evaluate a stone's weight and optical properties. Detailed and comprehensive, this book is essential for anyone interested in the study of gems and precious stones.
Author: Michael Bycroft
Publisher: Springer
ISBN: 3319963791
Category : History
Languages : en
Pages : 369
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Book Description
This edited collection is an interdisciplinary study of gems in the early modern world. It examines the relations between the art, science, and technology of gems, and it does so against the backdrop of an expanding global trade in gems. The eleven chapters are organised into three parts. The first part sets the scene by describing how gems moved around the early modern world, how they were set in motion, and how they were pulled together in the course of their travels. The second part is about value. It asks why people valued gems, how they determined the value of a given gem, and how the value of a gem was connected to its perceived place of origin. The third part deals with the skills involved in cutting, polishing, and mounting gems, and how these skills were transmitted and articulated by artisans. The common themes of all these chapters are materials, knowledge and global trade. The contributors to this volume focus on the material properties of gems such as their weight and hardness, on the knowledge involved in exchanging them and valuing them, and on the cultural consequences of the expanding trade in gems in Eurasia and the Americas.
Author: Elizabeth Ferry
Publisher: University of Toronto Press
ISBN: 1487503172
Category : Social Science
Languages : en
Pages : 217
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Book Description
Based on a Wenner-Gren international workshop, held at the Royal Ontario Museum, this book addresses the complexity of human-mineral engagements through ethnographic case studies and anthropological reflections on different people and the minerals they deem 'precious.'
Author: Geological Survey
Publisher:
ISBN: 9781411341746
Category : Business & Economics
Languages : en
Pages : 230
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Book Description
This volume of the Minerals Yearbook provides an annual review of mineral production and trade and of mineral-related government and industry developments in more than 175 foreign countries. It is normally published in separate books that cover specific regions. In this publication, the regional books are combined into one commemorative volume. These annual reviews are designed to provide timely statistical data on mineral commodities in various countries. Each report includes sections on government policies and programs, environmental issues, trade and production data, industry structure and ownership, commodity sector developments, infrastructure, and a summary outlook. More information is available on the three volumes of the Minerals Yearbook. Regional Areas Covered: Africa and the Middle East Asia and the Pacific Europe and Central Eurasia North America, Central America, and the Caribbean South America
