Inflation is the rate at which the general level of prices for goods and services is rising and, consequently, the purchasing power of currency is falling. Central banks attempt to limit inflation, and avoid deflation, in order to keep the economy running smoothly. Next Up.
If you are not allergic to metal, the reason for this reaction is chemical. It's due to a combination of the metal and the acids in your skin. Experts say that there are several metals that oxidize with your skin to give you a noticeable green ring around your finger. A ring made of copper is a common culprit, but even silver and gold metals can cause discoloration.
It's unlikely that your ring is pure gold. That would mean it's 24 karat gold, which is too soft to make into a ring. It's probably 14 karat (10 parts mystery metal) or 18 karat (6 parts mystery metal). The mysterious not gold metal in the ring may be what's turning your finger black. I'm assuming the ring really is gold all the way through and not plated. If a plating layer or a purer layer than the one underneath was worn off, that could explain it... pixelscapes Â· 8 years ago. Thumbs up. 0. Thumbs down. 1.