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Author: Jill Keppeler
Publisher: Gareth Stevens Publishing LLLP
ISBN: 1482447096
Category : Juvenile Nonfiction
Languages : en
Pages : 34
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Book Description
Theyre sparkly with varied hues. You might see them in a beautiful necklace, a breathtaking ring, or even in a computer. Theyre gems! Gems are some of Earths most precious resources, and some of them are millionsor even billionsof years in the making. This detailed text, accompanied by colorful photographs, informs readers about the remarkable processes that take place under the surface of Earth to form different kinds of gems. Theyll also learn how some gems are mined, while others are replicated in laboratories. Future lapidaries will also find out how they might find and polish gems for themselves.
Author: Jill Keppeler
Publisher: Gareth Stevens Publishing LLLP
ISBN: 1482447096
Category : Juvenile Nonfiction
Languages : en
Pages : 34
Get Book Here
Book Description
Theyre sparkly with varied hues. You might see them in a beautiful necklace, a breathtaking ring, or even in a computer. Theyre gems! Gems are some of Earths most precious resources, and some of them are millionsor even billionsof years in the making. This detailed text, accompanied by colorful photographs, informs readers about the remarkable processes that take place under the surface of Earth to form different kinds of gems. Theyll also learn how some gems are mined, while others are replicated in laboratories. Future lapidaries will also find out how they might find and polish gems for themselves.
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: Panagiotis Voudouris
Publisher: MDPI
ISBN: 3039280767
Category : Science
Languages : en
Pages : 528
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Book Description
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.
Author: François Farges
Publisher: Rizzoli Publications
ISBN: 2081512955
Category : Design
Languages : en
Pages : 0
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Book Description
Enter into the fascinating world of precious gems through this unique volume that brings together the wonders of mineralogy and masterpieces of jewelry. Both a reference book and an exhibition catalog, Gems unveils the fascinating world of minerals and gems through a dialogue between the prestigious collections of the Muséum national d'histoire naturelle in Paris and the great French jeweler Van Cleef & Arpels. The Muséum national d'histoire naturelle in Paris welcomes the exhibition Gems from September 16, 2020‒May 4, 2021. This beautifully illustrated volume brings together an international team of mineralogists, scientists, and specialists in natural history and in the history of jewelry, under the editorial direction of François Farges, to explore the diversity of the mineral universe through an exceptional selection of geological specimens (some published here for the first time), legendary gems, and exceptional ornaments created throughout history. Raw crystals, cut stones, and jewelry are compared and contrasted, shedding light on both the natural wonders made by the Earth itself and the virtuoso creations of human hands that transform them into works of art.
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: George John Younghusband
Publisher:
ISBN:
Category : Crown jewels
Languages : en
Pages : 184
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Book Description
Author: Jerry Sisk
Publisher:
ISBN: 9780692713181
Category :
Languages : en
Pages : 446
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Book Description
A comprehensive and visual gemology resource featuring more than 100 prominent gemstones.
Author: P.C. Keller
Publisher: Springer Science & Business Media
ISBN: 1468466747
Category : Science
Languages : en
Pages : 315
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Book Description
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.
Author: Julius Wodiska
Publisher:
ISBN:
Category : Precious stones
Languages : en
Pages : 482
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Book Description
Author: Cally Hall
Publisher: National Geographic Books
ISBN: 0744020557
Category : Nature
Languages : en
Pages : 0
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Book Description
Unearth a treasure trove of knowledge on over 130 gemstones from around the world. Learn how gemstones are formed and how to recognize them by their unique qualities and colors. It’s a wonderful book for beginners, students and gemstone-enthusiasts that includes the latest scientific research and specimen classification. Handbook of Gemstones is filled with all you need to know about the fascinating world of gemstones — cut and uncut stones, organic gemstones and precious metals. Inside, you’ll find: • Fast facts for quick reference, including chemical composition, hardness, gravity, luster 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. Everything you ever wanted to know about gems Delve into the one-of-a-kind characteristics, colors 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, making it the ideal gift for any budding gemologist! Love what you’re seeing? Check out other titles in the series! 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.
