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<p>[QUOTE=&quot;BoudiccaJones, post: 491344, member: 5592&quot;]THis is where I got it from&nbsp; (never do I have my own questions that start * where did I * answered so quickly, how did I manage to refind it?!)</p><p><br /></p><p>Link here : <a href="https://www.thesprucecrafts.com/identifying-and-testing-jet-149512" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.thesprucecrafts.com/identifying-and-testing-jet-149512" rel="nofollow">https://www.thesprucecrafts.com/identifying-and-testing-jet-149512</a></p><p><br /></p><p><br /></p><p>Copied n pasted for those who don&#039;t do links x</p><p>Natural jet will be very light in weight in comparison to French jet, which is actually black glass. It will also be room temperature rather than cold like glass. It&#039;s also interesting to note that jet will not scratch glass, but glass will indeed scratch jet.</p><p><br /></p><p><br /></p><p>Touched by a hot pin (very carefully and in an inconspicuous place to avoid damaging the jewelry being tested), Lisa Stockhammer of <a href="http://www.georgianjewelry.com" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.georgianjewelry.com" rel="nofollow">www.georgianjewelry.com</a> noted, &quot;it may smell earthy or coal-like&quot; - since it is indeed a type of coal. A less risky method of testing: take the piece in question and scrape an inconspicuous area on a rough surface like the back of a ceramic tile or the bottom of a piece of unglazed porcelain. If it leaves a brown mark, the piece is likely jet (although vulcanite can also leave a brown mark, so be sure to look for other jet attributes before making that call).[/QUOTE]</p><p><br /></p>

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