Log in or Sign up
Coin Talk
Home
Forums
>
Coin Forums
>
Coin Chat
>
Toning is corrosion!
>
Reply to Thread
Message:
<p>[QUOTE="TypeCoin971793, post: 3127274, member: 78244"]So I got some powdered sulfur to experiment with some junk silver coins. One of these experiments consisted on baking a coin in this sulfur just to see what would happen. Well, what resulted was a black, crusty mess with few defining characteristics. Thinking that this black crusty stuff was just some caked-on silver, I hammered the coin until the crusty stuff came off so it could be a discernable silver coin again. What I saw shocked me.</p><p><br /></p><p>Here was the coin before my experiments:</p><p><br /></p><p>[ATTACH=full]797171[/ATTACH] [ATTACH=full]797173[/ATTACH] </p><p><br /></p><p>Here is the result. The above coin is on the right. The left coin was another, similar experiment, just not as severe of a result.</p><p><br /></p><p>[ATTACH=full]797174[/ATTACH] [ATTACH=full]797175[/ATTACH] </p><p><br /></p><p>The coin weighed nearly 4 grams less than it did before! I then started looking at the crust fragments to see what was there to see. On this piece, there are two clear layers. The outermost layer is most likely caked-on sulfur, but the inner one is most likely the coin itself! The inner layer measures about half a millimeter thick, which would explain the drastic weight loss. I found it surprising that the sulfur was able to seep so deep into the coin and react with the silver.</p><p><br /></p><p>[ATTACH=full]797168[/ATTACH]</p><p><br /></p><p>So remember, when you are buying a toned coin, you are just buying a coin with a thin layer of crusty corrosion. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="TypeCoin971793, post: 3127274, member: 78244"]So I got some powdered sulfur to experiment with some junk silver coins. One of these experiments consisted on baking a coin in this sulfur just to see what would happen. Well, what resulted was a black, crusty mess with few defining characteristics. Thinking that this black crusty stuff was just some caked-on silver, I hammered the coin until the crusty stuff came off so it could be a discernable silver coin again. What I saw shocked me. Here was the coin before my experiments: [ATTACH=full]797171[/ATTACH] [ATTACH=full]797173[/ATTACH] Here is the result. The above coin is on the right. The left coin was another, similar experiment, just not as severe of a result. [ATTACH=full]797174[/ATTACH] [ATTACH=full]797175[/ATTACH] The coin weighed nearly 4 grams less than it did before! I then started looking at the crust fragments to see what was there to see. On this piece, there are two clear layers. The outermost layer is most likely caked-on sulfur, but the inner one is most likely the coin itself! The inner layer measures about half a millimeter thick, which would explain the drastic weight loss. I found it surprising that the sulfur was able to seep so deep into the coin and react with the silver. [ATTACH=full]797168[/ATTACH] So remember, when you are buying a toned coin, you are just buying a coin with a thin layer of crusty corrosion. :)[/QUOTE]
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
Coin Talk
Home
Forums
>
Coin Forums
>
Coin Chat
>
Toning is corrosion!
>
Home
Home
Quick Links
Search Forums
Recent Activity
Recent Posts
Forums
Forums
Quick Links
Search Forums
Recent Posts
Competitions
Competitions
Quick Links
Competition Index
Rules, Terms & Conditions
Gallery
Gallery
Quick Links
Search Media
New Media
Showcase
Showcase
Quick Links
Search Items
Most Active Members
New Items
Directory
Directory
Quick Links
Directory Home
New Listings
Members
Members
Quick Links
Notable Members
Current Visitors
Recent Activity
New Profile Posts
Sponsors
Menu
Search
Search titles only
Posted by Member:
Separate names with a comma.
Newer Than:
Search this thread only
Search this forum only
Display results as threads
Useful Searches
Recent Posts
More...