Message:

<p>[QUOTE=&quot;desertgem, post: 2852253, member: 15199&quot;]Thank you Richard, but if I may offer a suggestion. Many on the board have advanced degrees in chemistry also, but 99+% do not. I could have used the word passivation also, but it would be of no value to most. My point was that verdigris/ toning, outside of liquid chemical solutions,&nbsp; does not progress at light speed, but to be visible, even&nbsp; minutely, takes time. Some people spend more than the coin is worth as they think it can be immediate and terminal. The forum is to educate on numismatics, and chemistry is a minor part of that. We want all to feel they can enter any discussion whether they have the extended education or not. I am not implying any thing is wrong with your post, just saying that one must know and respect their audience if they seriously wish to transfer the information. Jim.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in