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Gemstones, Minerals & Fossils
Lapidary
Zircon and other clear stones identification
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<blockquote data-quote="Heatho" data-source="post: 398932" data-attributes="member: 487"><p><a href="http://www.geo.utexas.edu/courses/347k/redesign/Gem_Notes/Topaz/topaz_main.htm" target="_blank">http://www.geo.utexas.edu/courses/347k/redesign/Gem_Notes/Topaz/topaz_main.htm</a></p><p><em>Topaz U.V. Fluorescence: weak; blue and colorless topaz may show a weak yellow or greenish glow under long wavelength u.v.. Sherry-brown, pink, or golden yellow topaz may show a strong orange-yellow fluorescence under long wavelength u.v. light that is much weaker under short wavelength u.v. light.</em></p><p></p><p>I've never seen topaz flouresce. All the thousands of zircons I have found absolutely none of them flouresce under any uv lights I have. Most zircons I have are a reddish colour and champagne straw type colour, most are extremely clear. </p><p></p><p>Some pics would be very helpful, try to do some under normal white light and then under the UV.</p></blockquote><p></p>
[QUOTE="Heatho, post: 398932, member: 487"] [url]http://www.geo.utexas.edu/courses/347k/redesign/Gem_Notes/Topaz/topaz_main.htm[/url] [i]Topaz U.V. Fluorescence: weak; blue and colorless topaz may show a weak yellow or greenish glow under long wavelength u.v.. Sherry-brown, pink, or golden yellow topaz may show a strong orange-yellow fluorescence under long wavelength u.v. light that is much weaker under short wavelength u.v. light.[/i] I've never seen topaz flouresce. All the thousands of zircons I have found absolutely none of them flouresce under any uv lights I have. Most zircons I have are a reddish colour and champagne straw type colour, most are extremely clear. Some pics would be very helpful, try to do some under normal white light and then under the UV. [/QUOTE]
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Gemstones, Minerals & Fossils
Lapidary
Zircon and other clear stones identification
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