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<p>[QUOTE=&quot;Bronwen, post: 430228, member: 5833&quot;]I did notice that the glue holding together a long, slender quartz crystal that had shattered became blazingly evident.&nbsp; Think it is also used to detect alterations to paintings.</p><p><br /></p><p>We could start a reference thread for how various materials look under UV light.&nbsp; The one thing I have that was altered the least by far is a Native American carving of a bobcat done in a segment of walrus tusk that is old enough to be sort of butterscotch in color.[/QUOTE]</p><p><br /></p>

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