say i have 2 coins in a coin tube. one is very nice close to UNC, shiny.........then i have a coins that dirty and well has corrosion on it. the stuff on the bad coin will spread to the clean coin right? how long does it take if so?
I think the close to uncircualted coin will start getting "dirt transfer" from the dirty coin in approximately 4 days and 5 hours give or take an hour Actually is probably better to keep the Uncirculated coins separate from the circulated ones.
I dunno if it would "spread" you know. What you're talking about isnt a fungus hehe. I would keep the dirty and corroded coins in a separate tube or container though so the good ones dont get scratched and what have you.
if you are talking about verdigis, the green colored corrosion often seen on coins, YES it can and will spread to other coins if it comes into contact with them. Any form of corrosion can spread from one coin to another.
Hey Spider... each coin is made from a different metal composition..ie copper (pennies) for anything before 1965, copper plated zinc for 1982 and present pennies, nickle, clad coinage, silver, gold, platinum, and pallidium..gold is corrosion resistant, silver will tarnish, pit and degrade if exposed to the right chemicals, nickle will pit, corrode if subjected to acidic materials, copper and clad are in the semi same arena..we all know the greenish "patina" copper gets also known as "Verde" (green in Spanish)...(water and it's ionic properties) are/is catalyst for the onset of corrosion as well as electrical current direct or indirect, humidity (water vapor) exposure to air, light, and any other material that can potentially leach onto a coin can have dramatic effects. Gold is immume to most things..so if you want to protect your coins from the transfer potential by contact...store them in different containers..you can reference any chemistry book for this information..Hope that helps you.. Thats why you hear store this in a cool dry and dark place..
If the tube is sealed and the humidity inside the tube is low and the tube is stored at a moderate temperature that doesn't vary a lot it may never transfer.
