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<p>[QUOTE=&quot;Any Jewelry, post: 4508770, member: 2844&quot;]Rubies with a relatively high iron oxide content don&#039;t fluoresce. The iron oxide counteracts the fluorescence of the chromium dioxide. </p><p>But as you said, they are likely to be glass.</p><p><br /></p><p>With those slightly irregular shapes and colours they look like pearls, cultured but real. </p><p>You can test them by rubbing them against your front teeth. If they feel gritty, they are real. (Doesn&#039;t work with dentures.<img src="styles/default/xenforo/smilies/wink.png" class="mceSmilie" alt=";)" unselectable="on" />)[/QUOTE]</p><p><br /></p>

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