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Author : Peter G. Read
Publisher : Butterworth-Heinemann
Page : 280 pages
File Size : 48,8 Mb
Release : 1988
Category : Design
ISBN : UOM:39015022529534
Author : Mohsen Manutchehr-Danai
Publisher : Springer Science & Business Media
Page : 575 pages
File Size : 48,9 Mb
Release : 2013-03-09
Category : Science
ISBN : 9783662042885
The rapid growth of gemological sciences and mineralogy demands a dictionary such as this for gemologists, mineralogists, geologists, jewel dealers, industry and hobbyists. With some 16,000 comprehensive definitions, supplemented by more than 250 diagrams and figures, this is a one-stop reference to any matter dealing with gems and gemology.
Author : Robert M. Shipley
Publisher : Read Books Ltd
Page : 349 pages
File Size : 40,9 Mb
Release : 2011-03-23
Category : Science
ISBN : 9781446547014
Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.
Author : Robert Morrill Shipley
Publisher : Unknown
Page : 248 pages
File Size : 46,5 Mb
Release : 1974
Category : Nature
ISBN : UCAL:B4125189
Author : Gemological Institute of America,Robert M. Shipley
Publisher : Unknown
Page : 0 pages
File Size : 53,7 Mb
Release : 1945
Category : Electronic
ISBN : OCLC:498576135
Author : Robert M. Shipley
Publisher : Unknown
Page : 229 pages
File Size : 52,8 Mb
Release : 1974
Category : Precious stones
ISBN : OCLC:249400840
Author : Muḥsin Manūchihr Dānāyī,Muḥammad ʻAlī Aḥmadī Bīdākhvīdī
Publisher : Unknown
Page : 662 pages
File Size : 47,9 Mb
Release : 1997
Category : Gems
ISBN : 9645954703
Author : Robert Morrill Shipley,Anna McConnell Beckley,Edward Wigglesworth
Publisher : Unknown
Page : 286 pages
File Size : 41,6 Mb
Release : 1948
Category : Precious stones
ISBN : UOM:39015017862809
Author : Gemological Institute of America,Lawrence L. Copeland
Publisher : Unknown
Page : 328 pages
File Size : 43,5 Mb
Release : 2013-08
Category : Diamonds
ISBN : 1258788713
Author : Peter Read
Publisher : Routledge
Page : 337 pages
File Size : 47,9 Mb
Release : 2012-10-02
Category : Science
ISBN : 9781136000096
This second edition 'Gemmology' has been expanded and updated throughout by the well known writer and editor of Butterworth-Heinemann's gemmology series, Peter Read. This is a much needed update of a classic text and new syllabus information and sample examination theory papers for the Gemmological Association's Preliminary and Diploma courses are included. The additions also incorporate more recent developments, such as the introduction of synthetic moissanite and the De Beer's instruments for distinguishing between natural and synthetic diamonds. 'Gemmology' still serves as a useful reference guide for gemmologists detailing the latest natural and synthetic gem materials and is an invaluable text for anyone in the gemmological profession.
Author : Lawrence L. Copeland
Publisher : Unknown
Page : 315 pages
File Size : 54,7 Mb
Release : 1960
Category : Electronic
ISBN : OCLC:68474262
Author : Peter G. Read
Publisher : Butterworth-Heinemann
Page : 341 pages
File Size : 45,9 Mb
Release : 2005
Category : Design
ISBN : 9780750664493
This edition has been completely revised to cover the latest methods of gem enhancement and identification, as well as the most up-to-date test instruments and laboratory techniques.
Author : P. G. Read
Publisher : Elsevier
Page : 370 pages
File Size : 43,7 Mb
Release : 2013-10-22
Category : Nature
ISBN : 9781483144672
Gemmology is a text for students preparing for the Gemmological Association's Preliminary and Diploma examinations. The book is more expansive and up-to-date than the author's earlier book, Beginner's Guide to Gemmology. The book deals with the practical and theoretical sides of gemmology. Tracing the background and science of gemmology, the book covers the gem material, geological formation, and occurrence of gemstones on the earth. The composition of gemstones from the atoms, elements, molecules, and compounds comprising them is analyzed, and the relationship between chemical composition and durability of the stone is explained. The basics of crystallography is mentioned as a tool toward understanding gemmology after which cleavage, parting, and fracture are done. A gemstone's durability and hardness and how the latter influences engineering tests and the mining techniques are compared. An important test technique to identify unmounted stones is the measure of specific gravity using displacement measurement methods and hydrostatic methods. After more descriptive details are given in identification of gemstones, whether these are synthetic or simulants, through a comprehensive explanation of the materials found in these other gemstones, the fashioning, through shaping or polishing, of gemstones is explained. Emphasis is given on the critical angle in which light rays pass in different rock densities, and then the cutting styles, gemstone polishing, and grading are discussed. Students studying for the Gemmological Association's Preliminary and Diploma examinations, jewelers, lapidarists, and diamond cutters, as well as those engaged in the hobby of gemmology, will find this book helpful and full of information toward their endeavors and hobbies.
Author : Larry V. Clark,Hartmut Walravens
Publisher : Otto Harrassowitz Verlag
Page : 244 pages
File Size : 54,7 Mb
Release : 2006
Category : Manchu-Tungus language
ISBN : 3447052406
"Based on three slightly differently organised manuscripts"--P. [7]
Author : Walter Schumann
Publisher : Sterling Publishing Company, Inc.
Page : 236 pages
File Size : 43,9 Mb
Release : 2008
Category : Minerals
ISBN : 9781402753398
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 colour, 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.