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<p>[QUOTE=&quot;Noah Worke, post: 24889279, member: 115032&quot;]I&#039;m resurrecting this ancient thread because I&#039;m back with more questions. These coins have been soaking since last April and are still quite crusty. Well, some are, and some have some strange buildup, and some I&#039;m certain are just slugs. However, I can&#039;t put a name to any of this, nor do I know how to potentially save some of these coins (if possible). Not sure what I&#039;ll do if I can&#039;t save them, maybe just hold on to them for the heck of it. So, can any more experienced ancient coin cleaners help me identify this buildup on some of my coins? That is, if there&#039;s a name for it. [ATTACH=full]1598756[/ATTACH]</p><p>These first three seem similar, I can try to dig down but I don&#039;t seem to be getting to a level where I can see a patina and then work from there. This seems like it could be removed by chemical means (though I don&#039;t know what) and I&#039;m hopeful that I can save these coins because they seem to have decent detail. [ATTACH=full]1598757[/ATTACH]</p><p>I&#039;m not sure if this one had the entirety of the patina fall off before I got it or if the coin is fine beneath this coppery coating, but it is quite soft and a q-tip soaked in MS-70 picks up coppery dust. I think this one is just out of luck. It is worth noting that this one has been only soaking for maybe a week.[ATTACH=full]1598758[/ATTACH]</p><p>This coin is strange to me. It has this white powdery coating which one may think makes it easy to remove, but it is quite the opposite: it&#039;s tough. The color and texture reminds me of limestone, maybe it&#039;s calcium? Maybe a chemical would remove it. This one I believe has a large lump on the other side, which I believed to just be buildup until I scratched it and some copper-colored metal showed up. Not sure I&#039;ve seen an ancient coin with such thick devices. In any case, this coin has me lost. [ATTACH=full]1598759[/ATTACH]</p><p>I&#039;m not entirely sure this coin is salvageable. It&#039;s crusty beyond belief and a piece of it cracked completely off the edge (not a necessarily important part, it was an excess part of the flan) as I was cleaning and it looked like this all the way through. That may be why it cracked off in the first place, though.[ATTACH=full]1598762[/ATTACH]</p><p>I&#039;m not sure what&#039;s up with this, a part also cracked off the side if this one (much more easily than the above coin) but I think some of this design may be salvageable. My issue with all of these coins is that I&#039;m not used to these difficult encrustations and coatings, the few that I&#039;ve successfully cleaned just had dirt on them that did take a good bit of digging and work, they weren&#039;t as bottom-of-the-barrel crusty as these.[/QUOTE]</p><p><br /></p>

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