pure nickel coins will stick to a magnet like canadian nickels
also if you have a nickel coin with some other alloy lets say copper and an aluminum coin usually aluminum coins are really much lighter in weight
also aluminum coins are extremely light weight
Brass is a mixture of copper and zinc, while nickel is an element.
silver is usually stamped 925
The silver and the nickel 3 cent coins minted in 1865 are 2 different coins and look different. The silver 3 cent coin minted in 1865 has a star on the obversed [heads] side of the coin and the reverse [tails] side has a large letter "C" with a Roman Numeral III [3] inside of it. This coin is smaller than a present day dime. The nickel 3 cent coin minted in 1865 has on the obverse [heads] side of the coin an image of Lady Liberty facing left while the reverse [tails] side of the coin has a large Roman Numeral III [3] surrounded by a wreath. This coin is the same size as todays dime.
In that there are no copper or silver niclle coins the question has no purpose. Copper and silver coins can be distinguished from each other by chemical reactivity, density, appearance (colour), electrical conductivity, mint mars and dates and a numismatic data book.
I think you would have to be a physicist to do that. It would be easier to identify the coin by nation of origin, date and denomination, and a coin guide book will help do this, and the book will tell you what metal the coin is made from.
Nickel is magnetic.
stainless is steel. aluminum is aluminum
ask google your question this sites rubbish
Brass is a mixture of copper and zinc, while nickel is an element.
Stainless steel looks shiny. Nickel is duller and darker in color. Stainless looks like the kitchen sink. Nickel more closely matches, well, a nickel. In reality, it is hard to tell the difference. Highly polished nickel is extremely shiny, like a bathroom faucet. That is nickel. Nickels are not made out of nickel anymore anyway. It is too expensive. Nickels and other shiny coins are an aluminum alloy. The above answer is backwards at least with guns. If it is highly polished nickel, it will be very shiny. It it has a duller more bluish look, then it is stainless steel most likely. Take it to your gunsmith for a positive id.
That describes the 25-cent coin, though the animal is actually a caribou, not a deer. 1968 saw a switch from 50% silver to pure nickel, so there are two versions. The silver version is worth $1.66 in US dollars as of 7 March 2017, while the nickel version is worth 25 cents in Canada. The easiest way to tell the difference is that the nickel version is magnetic.
Since mid-1982 US cents have been made of copper-plated zinc rather than nickel. Your coin may be a mint error or someone may have removed the plating using acid. It can be difficult to tell the difference so the coin should be examined by a knowledgeable professional.
silver is usually stamped 925
Value is determined by the coin's date, mint mark, and condition.
Nickel is a silver-colored metal that tends to have a more yellowish tint compared to silver. Additionally, nickel is not as shiny as silver and is heavier than silver. You can also check for markings on the metal to confirm the material.
Assuming you refer to the 1981 British 25 Pence coin (Crown), it is made from a copper-nickel alloy. If you have a sterling silver Proof coin, it will state somewhere on the packaging that the coin is made from sterling silver.
The U.S. Mint has not produced a nickel with a 5 on the back of in 1945. If someone has stamped it on the coin then they have damaged it as far as numismatic value is concerned and is worth little more than a nickel. If it is made with the five on the back then it is probably a novelty coin of some sort and has a value of no more than you are willing to pay for it. If you think there may be more to the coin than I have said then you may want to take it to a an honest coin dealer and after seeing it then perhaps they can tell you exactly what it is.