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<p>[QUOTE=&quot;Bronwen, post: 2273742, member: 5833&quot;]Think this argues against my position (what doe &#039;blue spiky&#039; mean?), although no idea what it does mean.&nbsp; The black spots I thought could be the kind of natural damage seen on coral could be scars from hot needle tests.</p><p><br /></p><p>I took my UV torch to the jewellery chest where I have some coral &amp; it did not go blue, although it returned the purple in quite a vivid way.&nbsp; Discovered that cultured pearls that also live in those drawers glow a nice shade of light blue, the freshwater ones were fainter.&nbsp; Also learned that some of the pearls in a necklace of branch coral, MOP disks &amp; what I always assumed were artificial pearls has some genuine pearls in it.&nbsp; <img src="styles/default/xenforo/smilies/smile.png" class="mceSmilie" alt=":)" unselectable="on" />[/QUOTE]</p><p><br /></p>

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