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Making dark copper and bronze coins lighter in color
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<p>[QUOTE="lordmarcovan, post: 2602468, member: 10461"]Yes, mild acidic solutions like these (ketchup or Worcestershire sauce, too, among others) would do it. But then you're just as likely to come out with that "hideous pinkish orange" color you mentioned if you try this.</p><p><br /></p><p>On ancients with dark <i>ancient</i> patina, I do not know of a way to "lighten" the patina in color without stripping it.</p><p><br /></p><p>Lemon juice, maybe? But again, you're dealing with a mild acid again, there, so maybe not.</p><p><br /></p><p>It may just be best to get pieces that are <i>already</i> lighter brown in color to show the students, rather than trying to tinker with darker ones. </p><p><br /></p><p>I prefer "earthen" or "desert" patinas on my late Roman bronze, and much of my ancient bronze in general. In the late Roman stuff, this kind of patina is affordable and yet the contrast makes the design "pop" nicely.</p><p><br /></p><p><img src="https://www.cointalk.com/proxy.php?image=http%3A%2F%2Fi88.photobucket.com%2Falbums%2Fk173%2Flordmarcovan%2FOld%25202007-2008%2520Roman%2520collection%2FRS084-Diocletian.jpg&hash=1b134bc0bd45e84842a2c6a40e42a8f4" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="lordmarcovan, post: 2602468, member: 10461"]Yes, mild acidic solutions like these (ketchup or Worcestershire sauce, too, among others) would do it. But then you're just as likely to come out with that "hideous pinkish orange" color you mentioned if you try this. On ancients with dark [I]ancient[/I] patina, I do not know of a way to "lighten" the patina in color without stripping it. Lemon juice, maybe? But again, you're dealing with a mild acid again, there, so maybe not. It may just be best to get pieces that are [I]already[/I] lighter brown in color to show the students, rather than trying to tinker with darker ones. I prefer "earthen" or "desert" patinas on my late Roman bronze, and much of my ancient bronze in general. In the late Roman stuff, this kind of patina is affordable and yet the contrast makes the design "pop" nicely. [IMG]https://www.cointalk.com/proxy.php?image=http%3A%2F%2Fi88.photobucket.com%2Falbums%2Fk173%2Flordmarcovan%2FOld%25202007-2008%2520Roman%2520collection%2FRS084-Diocletian.jpg&hash=1b134bc0bd45e84842a2c6a40e42a8f4[/IMG][/QUOTE]
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Making dark copper and bronze coins lighter in color
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