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<p>[QUOTE=&quot;joecoincollect, post: 4430202, member: 71338&quot;]I have a question for you. I’ve read a lot elsewhere too that it’s a powdery substance like you describe. However, i think this is misleading. Most of the time when i encounter it, it’s easier to identify by unsightly blobs in relief, usually light blue color that creeps in crevices or is under patina. When i pick at the blob, the surrounding metal is softer than usual and is easier than normal to scrape/slice off with a scalpel. The softer metal tends to be redish brown at the top, darker brown as it mixes seamlessly into the lighter brown metal. I sometimes get impatient and cut it all&nbsp; out, then i’m left with a pothole here and there but i see no other choice. As ive read, it’s irreversible, so i gotta stop its spread i guess. Im kind of new to ancients, haven’t used sodium sesqui-whatever it’s called but i imagine it eats the BD away also, just at a slower pace and with less damage to surrounding metal. I also tend to encounter it a lot when i see the same blue and red colors peeking through patina, and when i take a stab at it, it’s like a soft blue dirt or sand that i push/scrape off to the lighter brown metal. The end result is a coin stripped of patina because underneath is soft, moist, seemingly corrosive blue dirt that i think has to be removed in order to prolong the coin’s life for posterity. I’ve almost had it with bronzes because of this common crud i’m running into, maybe it’s just the ebay stuff ive gotten. But i’ve read some posters say never get rid of patina or show the bright copper color, but my only choice is to leave moist blue dirt on top so it can soften and eat away at the copper over time. I hate it so much. Sorry to write so much, just frustrated[/QUOTE]</p><p><br /></p>

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