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Gemstones, Minerals & Fossils
Gemstones and Minerals
Sapphire advice needed please
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<blockquote data-quote="Twapster" data-source="post: 88087" data-attributes="member: 1582"><p>Mostly Darkish-Blue Sapphire are unable </p><p>to change in to lighter color by heat Treatment but Sapphire with </p><p>lighter color or colorless [ with slight presence of un-dissolved </p><p>chemical elements being in gemstones, such as Geuda ] can be </p><p>improved by treatment [ color and clarity ]. Most Sapphire rough </p><p>coming out of USA mines [ Montana ], no need to do pre-shaping </p><p>or trimming [to remove certain type of inclusion to avoid cracking, </p><p>shattering in high heat </p><p></p><p>source: <a href="http://www.gemcuttingservice.com/109045.html" target="_blank">http://www.gemcuttingservice.com/109045.html</a></p></blockquote><p></p>
[QUOTE="Twapster, post: 88087, member: 1582"] Mostly Darkish-Blue Sapphire are unable to change in to lighter color by heat Treatment but Sapphire with lighter color or colorless [ with slight presence of un-dissolved chemical elements being in gemstones, such as Geuda ] can be improved by treatment [ color and clarity ]. Most Sapphire rough coming out of USA mines [ Montana ], no need to do pre-shaping or trimming [to remove certain type of inclusion to avoid cracking, shattering in high heat source: [url]http://www.gemcuttingservice.com/109045.html[/url] [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
Sapphire advice needed please
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