How to tell if coral jewelry is real

Coral jewelry is usually a popular choice in jewelry buying, but now with the abundance of imitation corals, the real jewelry is in an endangered situation. Here I will show you some ways to distinguish the fake coral jewelry from the real one.
The first step in determine whether the coral jewelry is fake or real is the color. A deep natural color is the usual color of the coral jewelry, if the coral jewelry is real is a real one; it should give you a sense of smooth. Then you should look at the coral beads closely.  The next step is to put your coral jewelry in a small ceramic bowl, which is covered with cow's milk. Put your jewelry in the bowl for 1 to 2 hours, if the milk changes its color, it means the coral jewelry is a real one; instead it is a fake one. Or if necessary, you can also put a drop of nitric acid on the coral jewelry. If the spot effervesces and forms tiny bubbles on its surface, it means the jewelry is a real one. The last but not least means is look at the size and to weigh its weight of it, the real coral jewelry is usually in a smaller size, but its weight is often heavier than the imitation one.
Here I just list three ways for you, you can still learn much through many other different approaches. But, whatever, I hope through this article, you can learn how to tell the real coral jewelry  from the fake to some extent.