Dictionary of Gems and Gemology

Dictionary of Gems and Gemology
Author: Mohsen Manutchehr-Danai
Publisher: Springer Science & Business Media
Total Pages: 575
Release: 2013-03-09
Genre: Science
ISBN: 3662042886

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.

Dictionary of Gems and Gemology

Dictionary of Gems and Gemology
Author: Robert M. Shipley
Publisher: Read Books Ltd
Total Pages: 271
Release: 2011-03-23
Genre: Science
ISBN: 1446547019

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.

Gemmology

Gemmology
Author: P. G. Read
Publisher: Elsevier
Total Pages: 375
Release: 2013-10-22
Genre: Nature
ISBN: 1483144674

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.

Gemmology

Gemmology
Author: Peter G. Read
Publisher: Butterworth-Heinemann
Total Pages: 341
Release: 2005
Genre: Design
ISBN: 0750664495

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.

A Dictionary of Confusable Phrases

A Dictionary of Confusable Phrases
Author: Yuri Dolgopolov
Publisher: McFarland
Total Pages: 406
Release: 2016-02-01
Genre: Literary Criticism
ISBN: 0786459956

Covering over 10,000 idioms and collocations characterized by similarity in their wording or metaphorical idea which do not show corresponding similarity in their meanings, this dictionary presents a unique cross-section of the English language. Though it is designed specifically to assist readers in avoiding the use of inappropriate or erroneous phrases, the book can also be used as a regular phraseological dictionary providing definitions to individual idioms, cliches, and set expressions. Most phrases included in the dictionary are in active current use, making information about their meanings and usage essential to language learners at all levels of proficiency.