Library > Gemology > Gemstone Treatments |
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| | | | | [930] Sealing Cracks in Gemstones
| An old lapidary taught me an excellent trick for sealing cracks in gemstones. Some gems are inherently unstable. If a client of mine wants one of these gems for inlay, or to be cut or set, I will often use this technique - with full disclosure, of course - to make the stone suitable for use in these applications. Also, with the growing trend of repurposing old jewelry, I am seeing more sentimental gems coming across my counter that require repair rather than replacement. Enter the epoxy technique.... (2010)
 Complete Story | | Show me more articles from: [AJM]|[Gary Dawson] | | Releated Categories: [Gemstone Treatments] | | ISBN: B00006K39S | | [549] The Treatment of Gemstones | The treatment and enhancement of gemstones has existed for centuries. Some enhancements improve on nature slightly, are undetectable, and they are permanent; this provides the gem market with a larger supply of beautiful gemstones. Other treatments produce dramatic changes in the gemstone; the irradiation and heating of colorless topaz that permanently transforms it into blue topaz is an excellent example. A few treatments are less stable and should be avoided by the knowledgeable buyer..... (1999)
Complete Story | | Show me more articles from: [Handbook for the Gem Buyer]|[Sondra Francis] | | Releated Categories: [Gemology]|[Gemstone Treatments]|[Handbook for the Gem Buyer] | | |
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