Author: Fred Ward

Publisher: N.A

ISBN: 9781887651011

Category: Precious stone industry

Page: 64

View: 6432

Part of the Fred Ward Gem Series offering information on how to buy and care for your gems. This revised edition features new photographs, famous gems, and buying tips. The series also includes Diamonds and Pearls.
Read More

A Gemologist's Guide

Author: Richard W. Hughes,Wimon Manorotkul,E. Billie Hughes

Publisher: N.A

ISBN: 9780964509719

Category:

Page: 816

View: 7081

From the dawn of time, ruby and sapphire have both attracted and fascinated humans in ways that few other items could.While objects of desire are found throughout the natural world, physical beauty is too often ephemeral. From the allure of a man, woman, flower or butterfly, through the fleeting moments of a sunset, there is little that lasts and practically nothing that can be passed down to our descendants. The exception is precious stones. Not only are they the most durable creations of mother nature, but their visual splendor is truly eternal.In this companion to his 2013 book, Ruby & Sapphire--A Collector's Guide, Richard Hughes examines these gems from the gemological standpoint, delving into these gems not just from the aesthetic, but also from the scientific point of view.The product of nearly 40 years of firsthand experience, it covers every aspect of the subject from A-Z. History, sources, prices, quality analysis, synthetics and treatments, everything is here. Ruby & Sapphire--A Gemologist's Guide represents the most comprehensive book ever written on a single precious stone. With over 1000 photos, maps and illustrations and 3500 references, it is nothing less than a tour-de-force of gemological scholarship.
Read More

Author: Fred Ward

Publisher: N.A

ISBN: 9780963372352

Category: Gemls

Page: 32

View: 2870

Cleaning gems is not as straightforward as would at first appear to be the case. Fred Ward shows how to take care of valuable gems without causing damage. The book also covers the cleaning & care of precious metals and the storage of jewellery
Read More

Author: Fred Ward,Charlotte Ward,Lolly Ward

Publisher: Gem Book Pub

ISBN: 9781887651158

Category: Nature

Page: 64

View: 6390

Read More

Author: Fred Ward,Charlotte Ward

Publisher: Gem Book Publishers

ISBN: 9781887651165

Category: Crafts & Hobbies

Page: 64

View: 8688

Popular series focusing on individual gems and their outstanding color. Contains history and lore as well as sources and buying tips. Beautiful, full-color photos throughout.
Read More

How to Identify, Evaluate & Select These Gems

Author: Renee Newman

Publisher: N.A

ISBN: 9780929975412

Category: Antiques & Collectibles

Page: 187

View: 3241

This guide helps buyers to evaluate these spectacular gems and it updates professionals on new treatments and sources of corundum and emerald. Using close-up photographs, the book shows how to make visual judgements about clarity. transparency, cut quality and brilliance. In addition, it helps you to understand lab reports and find appraisers and labs. You will also get tips on detecting imitations and synthetic stones. Let this guide provide the in-depth information you will need to be a smart buyer. Topics in this guide include: Quality evaluation; Gem treatments; Fakes and synthetics; Lab reports; Geographic sources; Appraisals; Gem cleaning & care; Savvy buying.
Read More

Author: P. G. Read

Publisher: Elsevier

ISBN: 1483144674

Category: Nature

Page: 370

View: 9277

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.
Read More

Gems That Do Tricks

Author: Fred Ward,Charlotte Ward

Publisher: N.A

ISBN: 9781887651127

Category: Nature

Page: 64

View: 2794

Read More

Author: Paul B. Downing,Paul B. Downing (Ph. D.)

Publisher: Gem Guides Book Company

ISBN: N.A

Category: Science

Page: 212

View: 1441

New edition with added chapters and sections. Provides all the information necessary for complete analysis and evaluation of any opal from a true gem. Properly identify opals from all over the world and what characteristics affect value. Breathtaking color photos throughout.
Read More

Author: Karl Schmetzer

Publisher: N.A

ISBN: 9783510652624

Category: Alexandrite

Page: 141

View: 3112

Alexandrite, a variety of chrysoberyl, and one of the finest colour-change natural gemstones, may almost be called "the national gemstone of Russia". This great prestige is based on two facts: its noble name in honour of the Tsarevich Alexander Nikolaevich (the future Tsar Alexander II) and its dazzling colours, green in daylight and red in incandescent light, the military colours of Imperial Russia. Although quantities of facetable quality alexandrite are considerably less than those of emerald, alexandrite is counted among and compared to the "big four" of the gem business: diamond - ruby - sapphire - emerald. In this book the authors present an historical overview of emerald mining in the Urals, the discovery of Russian alexandrites in the Uralian emerald mines, the naming and historical use of alexandrites and their appearance and display in mineralogical museums and the gem trade. Morphology and twinning of rough alexandrite is described for single crystals, single contact twins and cyclic twins (trillings). Mineralogical and gemmological properties are thoroughly explained and numerous photo-micrographs of inclusions and growth patterns in faceted samples are presented. Chatoyancy and asterism of alexandrite and chrysoberyl from Russia and Sri Lanka are also described. A further chapter deals with characteristic growth patterns of Russian, other natural and synthetic alexandrites. Colorimetric data of Russian alexandrites and green chrysoberyls are explained using the CIELAB colour space, and the distinction between these varieties is explained. A chapter on trace element chemistry and locality determination rounds off the book. An extensive appendix containing lists of historical names, a time table and numerous references provides valuable information on Russian alexandrites for all researchers in the mineralogical and gemmological fields as well as for gemmological laboratories, jewellers and gem dealers. Consequently, this book, illustrated with more than 200 colour figures and photographs, addresses mineralogists, gemmologists, historians, mineral and gem collectors as well as all members of the gem trade.
Read More

From One of the World's Great Collections

Author: Anna S. Sofianides,George E. Harlow

Publisher: Sterling Signature

ISBN: 9781454917113

Category: Nature

Page: 232

View: 2862

On its 25th anniversary, a classic book gets a sumptuous, redesigned edition. Fully updated,Gems & Crystals showcases the museum's renowned collection and unlocks the science behind the dazzling properties of each gemstone species. Nearly 150 key varieties of gems and minerals are profiled, with information on their history, lore, and sources. Extensively researched and stunningly illustrated, this special volume will fascinate novice and expert alike.
Read More

Journey into the Heart of God

Author: Dale A. Fife

Publisher: Whitaker House

ISBN: 1629111015

Category: Religion

Page: 256

View: 7152

There are divine moments in life when you turn a corner and are astounded by unexpected, breathtaking vistas that you never imagined. Suddenly, your world is changed forever. You have entered a supernatural realm, an eternal dimension, where Jesus is Lord and creation itself shouts His glory. The brilliantly illuminating revelation in The Hidden Kingdom will catapult you into such an experience. Embark on a voyage of discovery into the mystery of God’s timeless realm. If you want an empowered life, if you dare to engage in a life-changing adventure, this book will lead you on a journey into the heart of God.
Read More

Their Sources, Descriptions, and Identification

Author: Robert Webster,Peter G. Read

Publisher: Digital Press

ISBN: 9780750616744

Category: Science

Page: 1026

View: 6410

Since it was first published in 1962 `Gems', written by Robert Webster and revised in its fourth edition by Basil Anderson, has become universally recognised as the most comprehensive and authoritative treatise on gem materials in the English language. In this fifth edition, edited by Peter Read, the forty chapters, appendices and tables have been revised by fifteen gemmologists chosen for their expertise in the relevant sections. Aimed at the professional jeweller and student gemmologist, Gems also caters for the collector of gems and the layperson who is interested in precious stones.
Read More

Author: Fred Ward,Charlotte Ward

Publisher: Gem Book Pub

ISBN: 9781887651066

Category: Nature

Page: 64

View: 5796

Provides a history of jade culture and industry and includes jade buying tips.
Read More

The Secret Story of Pearls

Author: Stephen G. Bloom

Publisher: St. Martin's Press

ISBN: 9781429923637

Category: Business & Economics

Page: 400

View: 7616

A round, luminescent pearl is the simplest and most perfect gem. Columbus sought—and found—this precious jewel coveted by his Spanish sovereigns, sparking popularity throughout Europe. Fashion icons Jacqueline Kennedy, Princess Grace, and Michelle Obama cherished them, making them iconic. And designer Coco Chanel raised them to new heights, bringing pearls— fake and real—to women everywhere. In Tears of Mermaids, Stephen G. Bloom travels 30,000 miles in an effort to trace a single pearl—from the moment a diver off the coast of Australia scoops an oyster containing a single luminescent pearl from the ocean floor to the instant a woman fastens the clasp of a strand containing the same orb. Bloom chronicles the never-before-told saga of the global pearl trade by gaining access to clandestine outposts in China, the Philippines, French Polynesia and Australia. He infiltrates high-tech pearl farms guarded by gun-toting sentries, farms for pearls in rural China, and even goes backstage at Christie's for a fast and furious auction of the most expensive pearl ever sold. Teeming with rogue humor and uncanny intelligence, Tears of Mermaids weaves a nonstop detective story whose main character is the world's most enduring jewel.
Read More

a field guide for collectors

Author: Bessie W. Simpson

Publisher: N.A

ISBN: N.A

Category: Nature

Page: 88

View: 6766

Read More

Valley of Rubies & Sapphires

Author: Ted Themelis

Publisher: Ted Themelis

ISBN: N.A

Category: Burma

Page: 270

View: 2582

Read More

The Definitive Buying Guide : how to Select, Buy, Care for & Enjoy Pearls

Author: Antoinette L. Matlins

Publisher: Gemstone Press

ISBN: 0943763355

Category: Antiques & Collectibles

Page: 198

View: 5013

With today's finest cultured pearls rivaling diamond, ruby, emerald and sapphire in terms of popularity, rarity and price, more and more people are searching for a reliable source of information to guide them in the fascinating and complex world of pearls-natural, cultured and imitation. This revised and updated 3rd edition is a comprehensive, authoritative guide that tells readers everything they need to know about pearls to fully understand and appreciate them, and avoid any unexpected-and costly-disappointments, now and in future generations.
Read More