Gemstones

Author: Cally Hall

Publisher: N.A

ISBN: 9781405357975

Category: Gems

Page: 160

View: 7696

A new edition of the clearest, most authoritative guide to gemstones you will find. From Amber to Rubellite, discover over 130 varieties of cut and uncut stones, organic gemstones and precious metals. 800 incredible photos, precise annotations and detailed descriptions, including everything from gemstone shapes to their composition, will help you to identify different stones quickly and easily. Covers everything from what a gemstone is and where they occur to the natural properties they have and how they have been fashioned and imitated through the ages. Perfect for gemstone lovers and a comprehensive guide for collectors.
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Gemstones

Author: Cally Hall

Publisher: DK

ISBN: 9780789489852

Category: Nature

Page: 160

View: 5518

Provides a concise description of each gemstone, photographs showing characteristics and distinguishing features, and information on where gemstones are found and their natural properties.
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Gemstones

Author: Cally Hall

Publisher: Dk Pub

ISBN: 9781564584984

Category: Nature

Page: 160

View: 3274

A visual identification guide to gemstones provides a concise description of each stone, photographs that highlight characteristics and distinguishing features, and general information on where gemstones are found and their natural properties
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Gemstones of the World

Author: Walter Schumann

Publisher: Sterling Publishing Company, Inc.

ISBN: 9781402768293

Category: Nature

Page: 319

View: 6231

Provides detailed information regarding the physical characteristics and unique traits of more than 1,800 precious and semiprecious stones, as well as discussing gemstone structure, production, name origin, and symbolism.
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Handbook of Rocks, Minerals, and Gemstones

Author: Walter Schumann

Publisher: Houghton Mifflin Harcourt

ISBN: 9780395511374

Category: Nature

Page: 380

View: 691

Shows and describes different kinds of rocks and minerals, and tells how to identify rocks by testing for hardness, streak color, and density
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Color Encyclopedia of Gemstones

Author: Joel E. Arem

Publisher: N.A

ISBN: 9780412989117

Category: Science

Page: 248

View: 5257

Provides information on all known gemstone species and varieties, discussing physical properties, occurrence, chemistry, availability, rarity, and market potential, and includes complete data on synthetic gems
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Simon & Schuster's Guide to Gems and Precious Stones

Author: Kennie Lyman

Publisher: Touchstone

ISBN: 9780671604301

Category: Nature

Page: 384

View: 4436

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.
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Firefly Guide to Gems

Author: Cally Oldershaw

Publisher: Firefly Books

ISBN: 9781552978146

Category: Crafts & Hobbies

Page: 224

View: 8515

A guide to gems and precious stones covers such topics as gem formation, structural properties, fashioning and cutting, and gem classification.
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Colored Gemstones

Author: Paul Deasy

Publisher: Real Gems Llc

ISBN: 9780982115602

Category: Science

Page: 207

View: 6757

Provides a concise description of each gemstone, photographs showing characteristics and distinguishing features, and information on where gemstones are found and their natural properties.
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The Rock and Gem Book

Author: DK

Publisher: Penguin

ISBN: 1465455329

Category: Juvenile Nonfiction

Page: 192

View: 6940

What is the difference between a rock and a gem? What makes the Hope Diamond so special? Why are some minerals fluorescent? Dig deep to find the answers in The Rock and Gem Book. Filled with over 1,200 stunning full-color photographs, The Rock and Gem Book is the perfect encyclopedia for young geologists to consult. Chapters are organized according to scientific classifications with straightforward explanations that bring each specimen to life. From the quartz in watches to the limestone in the Great Pyramids, the earth's natural treasures are used in architecture, art, and science. Get up close to diamonds, rubies, pearls, and sapphires, and study the different types of rocks, from granite to meteorites. Designed in DK's signature style, the pages are filled with highly visual spreads that show off the depth and unique quality of each gemstone, rock, and fossil. See the past with fossils, learn about the ocean through shells, and find out what makes gold so special in The Rock and Gem Book.
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Gems of the World

Author: Cally Oldershaw

Publisher: Firefly Books

ISBN: 9780228100072

Category:

Page: 256

View: 7506

-Lavishly illustrated, Gems of the World is intended for anyone who has ever been fascinated by crystals, jewelry, and gems, from general readers to seasoned professionals. It is a fine addition to general collections.- --Booklist, on the previous edition Gems of the World is a practical and comprehensive guide to the identification and properties of precious and semiprecious gems, novelty stones, agates and crystals. This edition has been revised and thoroughly updated. Changes and new features include updated maps of recently established diamond bourses and geographical country changes, plus new gem varieties and localities where they are found, new techniques for producing synthetic gemstones and simulants, and much more. There is comprehensive information on gems: gem formation mining the diamond industry conflict diamonds ethical sourcing crystal structure (diagrams and cuts) optical and physical properties fashioning and cutting (properties and uses) gemstone cuts for diamonds buying a diamond buying colored gemstones imitation and synthetic gemstones gemstone enhancement history of gems famous diamonds caring for gemstones and jewelry a color key of 139 gemstones. The text describes the world's diamond cutting and trading centers, the -diamond pipeline- that flows from mine to retail, and information on the gemstone industry, ethical mining, conflict diamonds and the emergence of new diamond centers. The description directory of gemstones is organized by their chemical composition. The 139 profiles describe each gem's geology, chemistry, properties (such as color, refractive index, and luster), cultural use in history and its value in jewelry. Photographs show the gem as a raw crystal, in common cuts, polished for use, and in some cases, also in a piece of jewelry. Gems of the World is an ideal reference for gemologists, collectors and general readers.
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Nature Guide Gems

Author: Kindersley Dorling,Ronald Louis Bonewitz

Publisher: DK Publishing (Dorling Kindersley)

ISBN: 9781409364634

Category: Gems

Page: 224

View: 6899

Have the world in your hands with these compact, illustrated natural history guides From red beryls to rubies, pick through Nature Guide Gems, a beautiful guide to earth's most precious stones. Part of a new generation of compact natural history guides, Nature Guide Gems is packed full of stunning images that reveal the intricate details and unique characteristics of earth's treasured jewels and metals. Expertly written and including over 400 examples from across the globe, these guides will give you knowledge of the natural world at your fingertips. With a detailed introduction on identifying and classifying gems and 140 individual profiles with clear, informative descriptions of each type of stone, Nature Guide Gems is the ideal identification guide.
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Identification of Gemstones

Author: Michael O'Donoghue,Louise Joyner

Publisher: Robert Hale & Company

ISBN: 9780719803512

Category: Science

Page: 313

View: 9324

Identification of Gemstones is a comprehensive reference guide to gem and ornamental materials, and outlines all the features a gem tester has to know before making an identification. The experienced author team describe not only each natural gem species, but also their synthetic counterparts and the materials used as imitations, demonstrating how to avoid costly mistakes. End of chapter summaries, details of further reading, and the companion website combine to provide all the support needed by professional gemmologists, antique and gemstone dealers, jewelers, and students.
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Silent Thunder

In the Presence of Elephants

Author: Katharine Payne

Publisher: Simon and Schuster

ISBN: 0684801086

Category: Nature

Page: 288

View: 6696

Details the pioneering research that has uncovered the fact that elephants communicate at a pitch lower than humans can detect, as a woman who has lived among them celebrates her time in Africa as well as the infinite connections between animals and people. 25,000 first printing. BOMC Alt.
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Gems and Gemstones

Timeless Natural Beauty of the Mineral World

Author: Lance Grande,Allison Augustyn

Publisher: University of Chicago Press

ISBN: 0226305112

Category: Nature

Page: 369

View: 4894

"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.
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Gemstones

A Complete Color Reference for Precious and Semiprecious Stones of the World

Author: Karen Hurrell,Mary L. Johnson

Publisher: Chartwell Books

ISBN: 0785834982

Category: Nature

Page: 320

View: 9614

This fascinating work provides a truly stunning visual guide to the beautiful world of gemstones. It brings together a wealth of information in clearly worded text accompanied by a dazzling collection of color photographs showing gems in their natural and cut states. From subjects as diverse as identifying and collecting minerals and advanced testing, to ethical sourcing of gems, every aspect of gemstones is covered, and is presented with a wealth of research in easy-to-understand sections, making it a must-have reference work for anyone who wants to delve into the exciting world of gems.
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Gem Identification Made Easy

A Hands-on Guide to More Confident Buying & Selling

Author: Antoinette Leonard Matlins,Antonio C. Bonanno

Publisher: Gemstone Press

ISBN: 0943763592

Category: Antiques & Collectibles

Page: 354

View: 9447

This revised edition covers the latest gems, synthetics, treatments and instruments. It is easy to use, practical and non-technical indicating how to identify diamonds, coloured gemstones and pearls, as well as separating them from fakes and look-alikes. The book explains what instruments are needed and how to use them, where to obtain such instruments and what should be seen for each gemstone. Anyone can learn to identify most of the gems and imitations found in the market place. This volume is the key to avoiding costly mistakes and recognising profitable opportunities.
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Gemstones

Author: Cally Hall

Publisher: DK

ISBN: N.A

Category: Nature

Page: 160

View: 8351

Provides a concise description of each gemstone, photographs showing characteristics and distinguishing features, and information on where gemstones are found and their natural properties.
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Horseshoe Crabs and Velvet Worms

The Story of the Animals and Plants That Time Has Left Behind

Author: Richard Fortey

Publisher: Knopf

ISBN: 0307957411

Category: Science

Page: 352

View: 9640

From one of the world’s leading natural scientists and the acclaimed author of Trilobite!, Life: A Natural History of Four Billion Years of Life on Earth and Dry Storeroom No. 1 comes a fascinating chronicle of life’s history told not through the fossil record but through the stories of organisms that have survived, almost unchanged, throughout time. Evolution, it seems, has not completely obliterated its tracks as more advanced organisms have evolved; the history of life on earth is far older—and odder—than many of us realize. Scattered across the globe, these remarkable plants and animals continue to mark seminal events in geological time. From a moonlit beach in Delaware, where the hardy horseshoe crab shuffles its way to a frenzy of mass mating just as it did 450 million years ago, to the dense rainforests of New Zealand, where the elusive, unprepossessing velvet worm has burrowed deep into rotting timber since before the breakup of the ancient supercontinent, to a stretch of Australian coastline with stromatolite formations that bear witness to the Precambrian dawn, the existence of these survivors offers us a tantalizing glimpse of pivotal points in evolutionary history. These are not “living fossils” but rather a handful of tenacious creatures of days long gone. Written in buoyant, sparkling prose, Horseshoe Crabs and Velvet Worms is a marvelously captivating exploration of the world’s old-timers combining the very best of science writing with an explorer’s sense of adventure and wonder.
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