Fool's gold looks vaguely goldish, but not all that much like gold. Among other things, fool's gold is a mineral, not a metal; if you hit it with a hammer, it shatters rather than getting dented.
real gold does not sing it sinks and so does fools gold.
real gold
Real gold has a higher melting point than fools gold. By applying heat, it is possible to determine the melting point of the material. If the material melts at a temperature higher than 1,064 degrees Celsius (1,947 degrees Fahrenheit), it is likely real gold.
Fool's gold, also known as pyrite, does not contain any real gold. It is a mineral made of iron sulfide and has a brassy yellow color that can sometimes be mistaken for gold.
Two methods to tell real gold from fools gold are:Rub the piece of gold against a piece of unglazed ceramic material. If it is real, it will leave a golden mark while fools gold will leave a black mark.Apply nitric acid to the gold. If it dissolves, then it is obviously fake, as real gold cannot be dissolved in nitric acid.
by the the difference between their density
Pyrite
Fools gold
Density test: Real gold is denser than fools gold, so you can perform a density test by comparing the weight of a sample of the suspected material to its volume to determine its density. Acid test: Real gold is not affected by nitric acid, while fools gold, also known as pyrite, will react with the acid, producing a greenish color. By applying a small amount of nitric acid to a sample, you can observe any color change to differentiate between the two materials.
Real gold is extremely soft and malleable; therefore, real gold could be dented with little pressure. Fools gold (Iron Pyrite) is much harder, and therefore harder to dent. A practical method is to get the material wet, and hold it up in the sun. Gold and fools gold will both shine. Now put your hand between the material and the sun. The gold will still shine, but the fools gold will become quite dark. This is because the shine of gold comes from diffuse reflection (like light shining on paper), while fools gold's comes from specular reflection (like a mirror).
No. It is iron pyrite and much more minerals. However, the two are sometimes found together, and some samples of fools' gold may contain trace amounts of real gold, but only a tiny spec.
A common way to differentiate between real gold and fake gold is by conducting a simple acid test. Real gold will not react to nitric acid, while fake gold made of other metals will show a reaction. You can also look for hallmark stamps, do a magnet test (real gold is not magnetic), or seek professional assistance from a jeweler or gold merchant for an accurate assessment.