In order to give an accurate estimate, the coin should be seen. I suggest you take it to a coin dealer and have it appraised.
The coin is 75% copper and 25% nickel, so the coin is likely face value the date is still in circulation.
Please rephrase question.
If you have a US nickel, it is either coated with copper or has changed color due to exposure to some chemical and has no special value. If it is a 1942 Canadian nickel, it varies from $.40 to $1.75 in circulated conditions, $3 and up in uncirculated grades. The material is called "tombac" and is an alloy of copper and zinc.
A nickel with copper infused is still worth 5 cents, as the metal composition of the coin is what determines its value. The added copper may change the appearance of the coin but not its monetary worth.
2 mil
Modified coins have no collector value. Any value would be associated with the ring as a piece of jewellery. The 1948 British Florin is made from a copper-nickel alloy and, in perfect condition (not as part of a ring), it might get up to £8 GBP.
All nickels except "war nickels" from 1942-45 are made of copper-nickel, not silver. What you have is an ordinary coin worth 5 cents.
Six cents to $1, depending on mintmark and condition.
No matter what denomination it is, if found in circulation it's face value.
The first 5-cent US nickel was made in 1866, the 3-cent nickel in 1865, and the copper-nickel flying eagle 1-cent in 1856.
No, nickel silver and sterling silver are not the same value. Sterling silver is a precious metal composed of 92.5% silver, while nickel silver is an alloy of nickel, copper, and zinc that does not contain any silver. Sterling silver is typically more valuable than nickel silver.
New Zealand Sixpences from 1933 to 1946 inclusive were made from 50% silver, the remainder being comprised of 40% copper and 10% nickel. From 1947 to 1965, they were made from a copper-nickel alloy.