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Gemstones, Minerals & Fossils
Gemstones and Minerals
some of my best polished gems
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<blockquote data-quote="user 1769" data-source="post: 41125" data-attributes="member: 1769"><p>Hi boobook,</p><p></p><p>I would argue chalcedony has a longer history of use as a gemstone, and is generally understood by everyone to be a gemstone. You can differenciate between prcious and semi-precious, etc, but they are indeed all gemstones. Have you considered that it might just be YOUR criterion, and not reflect common usage?</p><p></p><p>What is your criterion for something being a gemstone? Do you consider opal to be a gemstone? How about pearls? Amber? The International Gem Society does, and gives what seems a fairly generally-accepted definition of a gem as "a mineral that has been chosen for its beauty and durability, then cut and polished for use as human adornment" <a href="http://www.gemsociety.org/article/what-is-a-gem/" target="_blank">http://www.gemsociety.org/article/what-is-a-gem/</a></p><p></p><p>This seems consistent with the above being gemstones. </p><p></p><p>M</p></blockquote><p></p>
[QUOTE="user 1769, post: 41125, member: 1769"] Hi boobook, I would argue chalcedony has a longer history of use as a gemstone, and is generally understood by everyone to be a gemstone. You can differenciate between prcious and semi-precious, etc, but they are indeed all gemstones. Have you considered that it might just be YOUR criterion, and not reflect common usage? What is your criterion for something being a gemstone? Do you consider opal to be a gemstone? How about pearls? Amber? The International Gem Society does, and gives what seems a fairly generally-accepted definition of a gem as "a mineral that has been chosen for its beauty and durability, then cut and polished for use as human adornment" [url]http://www.gemsociety.org/article/what-is-a-gem/[/url] This seems consistent with the above being gemstones. M [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
some of my best polished gems
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