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<p>[QUOTE=&quot;mirana, post: 9742222, member: 79705&quot;]I have a small bowl with a drop of dish soap in water, same as what Bronwen recommends for soaking other cameos for cleaning, like shell or hardstone.</p><p><br /></p><p>Dunno what the &quot;rust&quot; looking stuff is...you mean the stuff under the lip of the cameo mount in your last photo? That is glue (probably animal) that they used to hold it. It gets brittle and sometimes crumbles out.</p><p><br /></p><p>If you mean the dark stuff on the back of the lava, I can&#039;t tell what that may be, but it&#039;s almost always a 100+ year build up of...uh...human....grime... <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie51" alt=":hilarious:" unselectable="on" unselectable="on" /> Oils, skin cells, dirt, etc. I start with a brush off on delicate stuff, dish soap + water with soft toothbrush if I don&#039;t think it&#039;ll damage it, then dental picks for stubborn gunk, but YMMV.</p><p><br /></p><p>If you&#039;re gonna keep collecting, I recommend getting a cheap pair of magnification glasses or a table magnifier, so you can really get a good eye on debris and use a much gentler and precise touch to remove it.[/QUOTE]</p><p><br /></p>

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