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<p>[QUOTE=&quot;kyratango, post: 353994, member: 5006&quot;]Thanks cxgirl<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie58" alt=":joyful:" unselectable="on" unselectable="on" /></p><p>No, cracks/crazing occur either during the cut or polishing process or after, when the opal dries too much.</p><p>From GIA.edu:</p><p>&quot;If an opal loses moisture, it can lead to crazing: a fine network of cracks that resembles a spider’s web. The moisture loss can be caused by heat or excessive dryness, or by exposure to bright light or direct sunlight. Crazing can be prevented by never displaying opals in places— such as window displays—where they’re exposed to these conditions.&quot;[/QUOTE]</p><p><br /></p>

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