Philip S Gems Of The World

Author: Cally Oldershaw
Editor:
ISBN: 9780540090259
Size: 10,65 MB
Format: PDF
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The first section - 'The World of Gems' - contains information on gem formation, mining, crystal structure, and both the optical and physical properties of gemstones. Other useful topics include the diamond industry, fashioning and cutting, imitation and synthetic stones, and gem enhancement, as well as information on buying gemstsones and diamonds, the history of gems, famous diamonds, and how to care for gems. A colour key is included to help identification, organized by broad colour ranges (yellow to brown, red to pink, blue to violet, green, colourless, white, black and iridescent).The second section - 'Gems of the World' - provides an in-depth description of each gem. Organized by chemical composition and grouped in a logical classification scheme, each gem has its own full-page or double-page entry. As well as the raw crystal, other photos and artworks show the preferred cuts and beautiful examples of jewellery made from the gem.The explanatory text provides information about the conditions under which the gem is formed, where it is mined and its physical properties. It also details the history and folklore attached to each gem, its significance as a jewel, key features to look for, and where the finest examples are found. Each entry is accompanied by a ready-reference fact box featuring key information about the gem, including its refractive index, relative density and hardness rating.A series of maps identify the most important gem locations in the world.Philip's Gems of the World will appeal both to students of gemmology and to the thousands of buyers, dealers and collectors who need an accessible yet comprehensive guide to the world's gemstones.

Gems Of The World

Author: Cally Oldershaw
Editor: Firefly Books Limited
ISBN: 9781554075393
Size: 12,33 MB
Format: PDF, ePub
Read: 763
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A guide to gems and precious stones covers such topics as gem formation, structural properties, fashioning and cutting, and gem classification.

Minerals Of The World

Author: Walter Schumann
Editor: Sterling Publishing Company, Inc.
ISBN: 140275339X
Size: 13,54 MB
Format: PDF, ePub
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It’s the classic work: revised and updated! Identify over 500 of the most collectible minerals quickly and easily with this fully photographed field guide. And this new reissue makes identification easier, with new cleavability ratings for each entry alongside the handy classifications based on streak color, Mohs’ hardness, and specific gravity. A complete introductory discussion of mineral forms and properties explains the essential criteria for recognition, and each of the hundreds of minerals (from Ankerite to Zinwaldite) is accompanied by information on its fracture, luster, chemical formula, aggregates, distinguishing characteristics, and localities.

Gemstones Of The World

Author: Walter Schumann
Editor: Sterling Publishing Company, Inc.
ISBN: 9781402768293
Size: 18,35 MB
Format: PDF, ePub, Mobi
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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.

Gems And Gemstones

Author: Lance Grande
Editor: University of Chicago Press
ISBN: 0226305112
Size: 17,29 MB
Format: PDF, ePub, Docs
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"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.

Gems Of The World S Forests

Author:
Editor:
ISBN:
Size: 12,95 MB
Format: PDF
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Gems Of Wonderful Chicago And The World S Fair

Author: George Wallace Melville
Editor:
ISBN:
Size: 17,70 MB
Format: PDF, Mobi
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Masdevallias

Author: Mary E. Gerritsen
Editor: Timber Press (OR)
ISBN: 0881927376
Size: 11,59 MB
Format: PDF, Docs
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For the indoor plant hobbyist, intermediate orchid grower, or anyone simply "mad about masdevallias," this is a first complete reference to these collectible orchids. An inspiring tribute to their beauty and a practical guide to their care, the book offers detailed advice on all aspects of culture. For those enthusiasts who are up to a challenge, chapters on propagating, showing, and registering masdevallias are also included.

The Numerical Discourses Of The Buddha

Author:
Editor: Simon and Schuster
ISBN: 161429044X
Size: 15,80 MB
Format: PDF, ePub
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Like the River Ganges flowing down from the Himalayas, the entire Buddhist tradition flows down to us from the teachings and deeds of the historical Buddha, who lived and taught in India during the fifth century B.C.E. To ensure that his legacy would survive the ravages of time, his direct disciples compiled records of the Buddha's teachings soon after his passing. In the Theravada Buddhist tradition, which prevails in Sri Lanka and Southeast Asia, these records are regarded as the definitive "word of the Buddha." Preserved in Pali, an ancient Indian language closely related to the language that the Buddha spoke, this full compilation of texts is known as the Pali Canon. At the heart of the Buddha's teaching were the suttas (Sanskrit sutras), his discourses and dialogues. If we want to find out what the Buddha himself actually said, these are the most ancient sources available to us. The suttas were compiled into collections called "Nikayas," of which there are four, each organized according to a different principle. The Digha Nikaya consists of longer discourses; the Majjhima Nikaya of middle-length discourses; the Samyutta Nikaya of thematically connected discourses; and the Anguttara Nikaya of numerically patterned discourses. The present volume, which continues Wisdom's famous Teachings of the Buddha series, contains a full translation of the Anguttara Nikaya. The Anguttara arranges the Buddha's discourses in accordance with a numerical scheme intended to promote retention and easy comprehension. In an age when writing was still in its infancy, this proved to be the most effective way to ensure that the disciples could grasp and replicate the structure of a teaching.