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6 guides found for

lightning ridge opal rough

esage*designs

What is an Opal?
by esage*designs( 2170)
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 dioxide...
Tags: australian opal | opal rough | black opal | crystal opal | lightning ridge opal rough
261 of 267 people found this guide helpful
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mbmiller

Determining the value of opals
by mbmiller( 482)
The purpose of this guide is to give the reader a basic working knowledge of how to assess the value of opals and be a more informed buyer on eBay. For a more information, I would recommend the following: OPAL...
Tags: opal | value | quality
128 of 128 people found this guide helpful
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usgemcutter

A Practical Guide to Ethiopian Opal
by usgemcutter( 270)
Ethiopian opal is still a new gemstone. Ethiopian opal is quite unique and different from more common Australian and Mexican opal. Not many people know about this opal yet. I am a gem cutter and have worked on...
Tags: Ethiopian Opal | Contra Luz | Hydrophane/Cachalong | Buying Opal | Opal Care
78 of 80 people found this guide helpful
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