Take it to a jeweler or coin shop. But beware of leaving coins with a dealer, because you have no proof of ownership.
We tell real gold by its weight.
If the coin is dated between 1840-1907 there is .12094oz pure gold in the coin.
Take it to see Money Mart, they can test it or find a gold test kit
The one sure way to determine if a coin is real or fake is by weight. A genuine coin will have a specific weight, while a counterfeit will be too heavy or too light.
That isn't a real "coin" but instead is known as a private "round" which is essentially just a gold bar in round form. These rounds are only worth their gold content which at the time of writing is about $145, but changes every day depending on the price of gold.
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We tell real gold by its weight.
You can tell if a ring is real gold or not by putting it near a magnet. If the ring is attracted to the magnet it is not real gold, real gold is not magnetic at all.
If it disappears, it was a magician's coin.
Is the James Madison dollar coin real gold
You need to be more specific on the date of your coin and the country of origin. For example, some $2 coins are real gold, such as the Newfoundland 2 dollar gold coin which is 22K gold. On the other hand, there are many $2 coins that aren't real gold, for example Australia's modern $2 coin looks golden but contains no real gold, neither does Canada's modern $2 coin. If you are unsure about if your $2 coin contains gold, post a new question including the date and the country of origin.
All Sacagawea coins are Brass. The US has not had a circulating gold coin since 1933.
Take it to a coin shop. They will tell you if it is real or not.
"The Santa Barbara gold coin" is not enough information for us to know exactly what you're asking about.
The easiest way is to measure its dimensions against what the coin should be. Gold is a hard metal to reproduce and as such fakes will either weigh differently or have a different diameter or thickness. An experienced coin dealer should also be able to tell you if your coin is genuine or not.
Gold-plated, not real gold. That makes it an altered coin with no real value to a collector.
It's not a real coin. Its value depends on how much gold, if any, it contains.