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<p>[QUOTE=&quot;desertgem, post: 2967767, member: 15199&quot;]It is hard to tell from the photo as to size and especially how deep the spots are. Generally if very shallow, a standard COIN type silver dip could be used. If deeper, it might not be effective. Generally unless they are excessively large , they wouldn&#039;t affect the overall grade or attract a &quot;environmental damage&quot; on a slab. IMO, Jim[/QUOTE]</p><p><br /></p>

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