Opal Identification & Value

Opal Identification & Value
Author: Paul B.. Downing
Publisher: Gem Guides Book Company
Total Pages: 232
Release: 2003
Genre: Nature
ISBN:

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.


The Opal Story

The Opal Story
Author: Andrew Cody
Publisher:
Total Pages: 40
Release: 2009-12
Genre:
ISBN: 9780646505381


Opals

Opals
Author: Fred Ward
Publisher:
Total Pages: 0
Release: 1997
Genre: Opals
ISBN: 9780963372383

This book is the latest in the popular Fred Ward Gem Book Series. The full-color photographs give the buyer and enthusiast all the information needed to understand the various types of opals and the ability to buy them wisely.


Opal, the Phenomenal Gemstone

Opal, the Phenomenal Gemstone
Author: Janet Clifford
Publisher: Lithographie LLC
Total Pages: 112
Release: 2007-01-01
Genre: Opals
ISBN: 9780979099809

Precious opal is a rainbow made tangible. Its spectral blaze of color moves, changes, intensifies, fades, or disappears with the slightest change in perspective. Opal?s intriguing play of color and unique atomic arrangement has made it the subject of scientific probing from early optics in the 1850s to high tech photonics today. Equally challenging has been discovering opal?s place in history. Its beauty begs to be enshrined in myth and legend when facts are as scarce as the stone itself.Opal, both precious and common, is found in disparate environments from the unbearable heat of the Australian outback to the higher elevations of the Canadian Rockies, from a centuries old site in Slovakia to a number of little known places in the American west. A unique assortment of characters collect and mine this equally individual stone, of which no two are exactly alike.This blazing gem of chemical simplicity?just silica and water?has ignited a complexity of human emotions: a compulsion to mine, the desire to wear, an urge to fashion, the challenge to imitate, a need to possess. A natural, wearable stone with magical depth, movement, and color, opal is a truly phenomenal gemstone.


The World of Opals

The World of Opals
Author: Allan W. Eckert
Publisher: John Wiley & Sons
Total Pages: 490
Release: 1997-10-02
Genre: Nature
ISBN: 9780471133971

Readers will find fascinating details about the discovery, whereabouts, and value of famous opals, from such classic specimens as the Burning of Troy Opal to the Bonanza Opal and other more recent discoveries. Finally, the book surveys today's major opal-producing areas and provides current information on opal occurrence worldwide. Punctuating the text are useful tables, extensive glossaries of opal types and opal-related terms, and beautiful photographs that capture the essence and mystery of this most exquisite stone.