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<p>[QUOTE=&quot;TallCakes, post: 618116, member: 107&quot;]flint glass doesn&#039;t fluoresce green under uv black lights. It is the manganese, which replaced flint as a clarifying agent, in later EAPG glass that has the faint green fluorescence. Flint glass greatly decreased in production in the USA at the time of the Civil War, as lead was mostly being diverted to the war efforts.</p><p><br /></p><p><a href="https://www.patternglass.com/blacklights.htm" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.patternglass.com/blacklights.htm" rel="nofollow">https://www.patternglass.com/blacklights.htm</a></p><p><br /></p><p><a href="https://www.patternglass.com/KindFlint/flint.htm" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.patternglass.com/KindFlint/flint.htm" rel="nofollow">https://www.patternglass.com/KindFlint/flint.htm</a>[/QUOTE]</p><p><br /></p>

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