Pour some nitric acid on the scratched surface of the gold.
How to check if gold is real with vinegar. Place the gold ring into the cup of white vinegar. Let the gold rest in vinegar for a minimum of 15 minutes. Then, lightly rub the gold against the foundation.
6) the ceramic scratch test. Real gold will leave a gold mark or trail. The suspected piece of gold is fake if the scratch dissolves in it or turns green.
Transfer some vinegar into a cup and then dunk your piece of gold in it such that it’s completely submerged. Because it is stable, it will not change. Push the item gently on the ceramic surface and drag it around a bit.
If you r gold item is real, there won’t be any changes on the jewelry piece. It can tell if your pearls were real…vinegar destroys real pearls… if the vinegar dissolves the pearls then they were real…and you no longer have to bother selling them as. To see if your gold is real, try scratching it with an unglazed ceramic.
After you’re done with the dropper. Observe the changes on the gold item. Other metals will leave a black trail.
If you see no changes, the piece of gold. The simplest way to find out if the gold is real or not is to have a float test. One easy test is the float test, also called the density test!