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Gemstones, Minerals & Fossils
Gemstones and Minerals
Man Made?
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<blockquote data-quote="Jack&#039;s Gems" data-source="post: 374731" data-attributes="member: 7783"><p>Mistake I made:</p><p>Andamooka opal is usually an opalised <strong>limestone</strong> and fairy opal is usually opalised <strong>sandstone</strong>. So they are different in that way but are in the matrix opal family. - Jack</p></blockquote><p></p>
[QUOTE="Jack's Gems, post: 374731, member: 7783"] Mistake I made: Andamooka opal is usually an opalised [b]limestone[/b] and fairy opal is usually opalised [b]sandstone[/b]. So they are different in that way but are in the matrix opal family. - Jack [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
Man Made?
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