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4 guides found in

Opal

cracker_catgems

What is an Opal?
by cracker_catgems ( private )
What's an Opal? Have you ever wondered how an opal is formed? How old is it? What is it? Well, here are some answers to those common questions. Opal Creation Opal is formed from a solution of silicon...
Tags: Opal | Gold | Silver | Platinum | Black
48 of 50 people found this guide helpful
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opalbuyer

A guide to Mexican Opal
by opalbuyer ( private )
As a radiologist, writing a review on mexican opals was perhaps the last thing I expected to be doing, but having fallen in love with this most beautiful and diverse of gemstones, and given the paucity of...
Tags: mexican opal | cantera | fire opal | australian opal | valuation
45 of 50 people found this guide helpful
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cracker_catgems

What is Andean Opal
by cracker_catgems ( private )
Andean opal is a lovely bluegreen translucent opal found in the Andes mountains near San Patricio, Peru. Copper may be the essential trace element that causes its soft distinctive color. It has been used...
Tags: Opal | Diamond | Gold | Silver | Platinum
10 of 12 people found this guide helpful
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cracker_catgems

AMMOLITE
by cracker_catgems ( private )
Introduction Rarer than Diamonds, Ammolites are the fossilized remains of a squid-like creature called an Ammonite that used jet propulsion to travel over 65 million years ago! From the Paleozoic era to...
Tags: Gold | Opal | Ammolite | Silver | Platinum
8 of 8 people found this guide helpful
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