bite it or look for a hallmark a hallmark is a couple of numbers (e.g silver has 925 on it)
Check the weight. Weights for coins can be found online. If the weight matches or is very slightly higher, then the coin is gold plated. If it's significantly heavier, then it's gold.
a gold coin is made up of Gold + Copper having copper in very limited amount. for eg, a 22 carat gold coin consists of 22 parts of gold and 2 parts of copper to make it total to 24 which is the measuring standard.
All coins have a specific weight which you can find in coin referencing material per country along with a specific diameter. For example an U.S. 1922 Saint Gaudens Double Eagle ($20 gold piece) weighs 33.436 grams which contains 90% gold. If a coin is not this exact weight and diameter from this specific year then it is not the gold coin in question. If you are not concerned about defacing the coin there are gold testing kits available online or at your local chemical stores. Most use Nutric Acid and Muriatic Acid, which are applied to filed particles from the specified coin. These acids cause non gold particles to separate from gold. There are also electronic gold testers available at rather investment grade pricing.
you know that gold is burn at 1036 0C. You know that Gold will react with NH3CO2 and HCL MIXTURE but not coincident by any acid . You know that gold is conductor. you know that gold is gold.
Yes. By definition 24 karat gold is pure gold, no matter what form it is in (leaf, coin, bar, or jewelry).
there is no 14k gold coin that i know of.
If you have a 20 dollar gold coin, it is worth a lot, at least $1500. You need to know what year the coin is from.
"The Santa Barbara gold coin" is not enough information for us to know exactly what you're asking about.
A coin collector is going to buy my coin , I want to know what the value of this coin, it is a 1953 gold coin ,50 franks
Sorry, I don't know
Unless the cashier is a coin collector, probably not. They won't know whether the coin is really gold or a replica, and they won't know if it is legal tender, and likely will not accept it. It wouldn't be a good idea to spend gold on gas anyway, really. You could get much more than face value for an authentic $50 gold coin.
I hope you know the coin is not gold, just gold colored. Unless it's a proof coin it's only worth a dollar.
may i know what is the value for liberty gold coin year 1906 in good condition?
we need to know what the coin is. Repost with a description of the legends on the coin along with diameter and weight.
In 1960 I bought a US 20 dollar gold coin that is encase in a gold frame to be worn as jewelry. This coin is 1924 and was minted in San Francisco I assume as it has an s by the date. I would like to know what is the value of this coin.
In order to give an accurate estimate of value of any coin it is necessary to know the date on the coin and its denomination.
Check the weight. Weights for coins can be found online. If the weight matches or is very slightly higher, then the coin is gold plated. If it's significantly heavier, then it's gold.