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.
If it's a real Seiko, then it's real gold. Fake ones? Not so much. I have many genuine gold colored Seiko watches and they are not real gold or I am rich :O)
They were all quite real.
No, Its Real
The Apollo moon landing in 1969 was real.
No, it is a real US government agency.
Is the James Madison dollar coin real gold
More replicas and counterfeits exist than real coins, if any bears are on the coin it's a fake. The best thing to do is take it to a dealer or collector.
0.48375 troy ounces (in a real gold dollar from the 1850s)
If the coin is a real Morgan or Peace dollar. The value is just for the silver, about $20.00.
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.
If you mean one of the current Presidential Dollars or the Sacagawea Dollar, none - they're made of brass, not gold. If you mean a real gold dollar from the 1850s, .04837 troy ounce.
Fake gold, or "fools gold" has a foul sulfur odor while real gold does not. Usually, you can rub the gold and sniff it to determine if it is real or fake.
no, it isnt its fake they wouldnt give it to you for free if it wasnt.
no because the real gold will mark with a small bite, the fake gold wont
If you've got a bronze trade dollar coin, it is a fake. Real trade dollars were made out of silver, not bronze.
The best test is density, since a fake coin can still have a real gold plating over a base metal interior. Gold is denser than any other commonly available metal (there are denser metals but they are even more expensive than gold, so they would never be used to create counterfeit gold coins). You can measure the weight of the coin on a scale, and the volume can be determined with the use of a graduated cylinder (to measure how much water it displaces) then you can calculate the density, which is simply weight divided by volume. Compare this to the density of gold. If it's pure gold, the coin is real.
A modern one dollar coin contains no real gold at all and the melt value of the coin is currently around six cents. As long as this coin is in circulation it will continue to be worth exactly one dollar.