Opals


Opals pdf

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Illustrated Catalogue


Illustrated Catalogue

Author: Lapp and Flershem, Chicago

language: en

Publisher:

Release Date: 1896


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Opal Identification & Value


Opal Identification & Value

Author: Paul B. Downing

language: en

Publisher: Gem Guides Book Company

Release Date: 2003


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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.

Confederate Veteran


Confederate Veteran

Author:

language: en

Publisher:

Release Date: 1893


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