The principle is as follows:

1, caused by friction between bracelet and clothes.

As we all know, jade bracelets can be worn from a very young age. And will not be easily corroded by other external substances, and you don't have to take it off when you take a shower. In this way, the bracelet will be in contact with people's clothes and skin for a long time, which will produce friction and gradually grind the surface of the bracelet more and more smoothly.

2. Brightening effect of human oil

Because the human body contains a lot of fat, it will secrete some on the skin surface. These oils will form a protective film after contacting with the jade bracelet, making the bracelet smooth and bright.

Health preserving function

China people think that jade has "five virtues" and often wear it to remind people to be as pure as jade, while precious and rare jadeite and emeralds are regarded as symbols of courage, luck and purity, and it is generally believed that jade is spiritual and can drive away evil spirits.

Wearing jade products for a long time is very beneficial to your health. From a medical point of view, jade contains many trace elements beneficial to human body, such as zinc, magnesium, iron, copper, chromium, manganese and cobalt. Wearing jade produces a special "photoelectric effect" to concentrate energy storage, which resonates with the human body, thus making various physiological functions work more harmoniously. Because of the "old-age point" on the wrist back, wearing jade bracelets for a long time can get a long-term benign massage, which can not only get rid of the blurred vision of the elderly, but also store vitality and nourish the spirit, and has obvious therapeutic and health care effects.

Extended data

Tips for choosing jade bracelets

When choosing bracelets, we should first carefully observe whether there are cracks in jade bracelets, and make a comprehensive observation on the front, back, inside and outside of each jade bracelet, because serious cracks are fatal to jade bracelets.

Secondly, we should pay attention to whether the shape of the jade bracelet is round, whether the rod diameter is uniform and whether the polishing is up to standard.

Thirdly, we should pay attention to whether the ring size and rod diameter of the jade bracelet meet the needs.

Finally, good jade bracelets should be "colored". "Species" refers to the fineness, crystal and transparency of jade, and "color" mainly refers to emerald green.

Generally speaking, we should firmly remember the following four formulas: first check the cracks to prevent fatal, the defects should be less refined, the sizes do not match, the transaction is difficult, and the "colored" edge products are excellent.

distinguish the true from the false

Here are some common methods to identify genuine jade bracelets:

1, water identification method: drop a drop of water on jade, if it is dewdrop, it is real jade.

2, hand touch method: if it is real jade, it feels cold and lubricated by hand.

3. Observation method: Observe the jadeite under the light, the color is clear and the green is evenly distributed.

4, the tip of the tongue identification method: the tip of the tongue licking the real jade has astringency, and the fake jade does not.

References:

Baidu encyclopedia: jade bracelet