What Is This White Deposit On This Canadian 1 Cent Coin?

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Author	Replies: 7 / Views: 1,569
hhbkiddo Pillar of the Community Canada 1248 Posts	Posted 12/21/2009 2:10 pm I have no idea what it is. It is not the typical green stuff and looks sort of dusty, but is NOT dust. it is on both sides on the coin. Can it be removed safely with something? water does not work. thanks for your help Report this Post to the Staff

BadThad Bedrock of the Community United States 19942 Posts	Posted 12/21/2009 3:09 pm What is the composition of this coin? I suggest you follow the polarity ladder outlined in this post: https://goccf.com/t/57008 Lincoln Cent Lover! VERDI-CARE™ INVENTOR https://verdi.care/ Edited by BadThad 12/21/2009 3:10 pm Report this Post to the Staff
hhbkiddo Pillar of the Community Canada 1248 Posts	Posted 12/21/2009 6:24 pm the coin is a 1 cent copper coin Report this Post to the Staff
BadThad Bedrock of the Community United States 19942 Posts	Posted 12/21/2009 9:59 pm 100% copper? Lincoln Cent Lover! VERDI-CARE™ INVENTOR https://verdi.care/ Report this Post to the Staff
Sap Moderator Australia 16816 Posts	Posted 12/21/2009 10:08 pm Canadian "coppers" are made of standard Imperial bronze, I believe: 97.5% copper, 2.5% tin. I've occasionally seen similar "white stuff" formed on British and Australian "coppers", made of the same alloy. Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis Report this Post to the Staff
hhbkiddo Pillar of the Community Canada 1248 Posts	Posted 12/21/2009 10:11 pm I am going bananas... what is the stuff? the coin is a really nice 1859, a reasonable grade.... BUT... WHAT is this stuff? Report this Post to the Staff
coinsrfun Pillar of the Community Canada 693 Posts	Posted 12/21/2009 10:48 pm It is the reminance of a brass dip. Get a bowl of almost boiling water....place coin in...let sit.....remove coin in approx 2 minutes....blow coin with compressed air...........continue process until crap is removed............... Report this Post to the Staff
BadThad Bedrock of the Community United States 19942 Posts	Posted 12/22/2009 12:01 am Quote: I am going bananas... what is the stuff? Residue. It could be anything from something that reacted with the metals or something just stuck to the surface. I don't think it's particually valuable, so the near boiling water might do the trick. More than likely it's inorganic so it should be at least somewhat soluble in water. Definately worth trying that technique. Lincoln Cent Lover! VERDI-CARE™ INVENTOR https://verdi.care/ Report this Post to the Staff
	Replies: 7 / Views: 1,569

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