You will need
- Gold
Instruction
1
You can try to determine gold "by ear". Sound when falling on glass surface ring, the authenticity of which you are certain and check the ring should be the same.
You can also draw those and other jewelry a small line on any solid object. If both leave a similar footprint, there is a high probability that they both have the same sample.
You can also draw those and other jewelry a small line on any solid object. If both leave a similar footprint, there is a high probability that they both have the same sample.
2
Try using a magnet. Precious metals are not attracted. However, copper and aluminium, also not magnetic. In any case, is to estimate the weight, because aluminum and copper are much lighter than gold.
3
Apply to the surface of the gold drop of iodine for 3-5 minutes. Then gently wipe the liquid. If the color of the metal remains the same, you likely real gold.
Or try to hold the jewelry in vinegar. If it will darken, it is fake.
Or try to hold the jewelry in vinegar. If it will darken, it is fake.
Note
Another way to test gold is to apply a special reagent to the surface of the jewelry. However, this operation can lead to damage of the product, and fix it then it will be difficult.
Useful advice
If you are willing to pay for the exact definition of real gold, to test jewelry, you can contact the experts who have special tools. With them measured the electrical resistance, conductivity and other parameters of the precious metal. Based on these data we can judge about the composition of the alloy.
