Distinguish real pearls from fake pearls.

Imitation beads refer to all or part of artificial imitation. Because of their strong simulation, it is easy to distinguish between true and false. Therefore, it is necessary to know some simple methods to distinguish pearls from imitation pearls.

Pearls are fresh and cool, but they don't feel smooth when bitten with teeth, but they feel like grinding sand. If you bite hard, the sound is crisp, there are no dented teeth marks on the surface, and the nacre has not fallen off locally. There are natural machine lines on the surface of pearls, so it can be seen that the luster color is uneven anyway. In a string of pearl necklaces, there are some differences in size, and there is a natural multicolored pearl luster. At the same time, observing the pearl hole, the pearl is sharper at the drill hole because of its hardness.

Imitation beads are slippery and wet, and they bite smoothly with your teeth. When bitten hard, dented teeth marks will appear on the surface, and even the coating will fall off locally. The surface of imitation pearl is slightly convex, lacking the unique luster of pearl, and generally has good roundness. At the same time, because the imitation beads are soft, there will be depressions at the drilling site.

When consumers buy pearl ornaments, they can not only master the necessary knowledge themselves, but also go to a jewelry store with a certain scale and good reputation run by professionals to buy them.

[How to tell whether pearls are true or false? 〗

Seawater pearls are dazzling and elegant, which can be as famous as precious stones and comparable to gold. Pearl necklace is a high-grade ornament favored by women, which not only makes people pleasing to the eye and adds charm, but also promotes health and beauty. Hainan is a famous pearl producing area. Many Chinese and foreign tourists who come to Qionghai are willing to buy Hainan pearls as souvenirs or gifts to relatives and friends, but they are often confused because they don't know the authenticity of pearls. In order to help tourists buy pearls with satisfactory quality and low price, this paper introduces some basic knowledge of pearls for reference when tourists buy pearls or pearl necklaces.

Pearls are divided into two categories: wild pearls and cultured pearls. At present, most pearls sold in the market are cultured pearls. Artificial culture of pearls is to artificially insert mature shellfish, such as white butterfly, black butterfly or Pinctada martensii, and then cultivate them in seawater for about one year, so that they can form pearl lines on nuts in the natural ecological environment according to the biological characteristics of shellfish. Artificial farming is hard, smooth and round, with sunny color. People usually divide pearls into two categories: pearls and treasures. Those weighing more than 2.5 grams are called treasures, and those weighing less than 2.5 grams are called pearls. Generally speaking, the longer the culture time, the bigger the core, the thicker the tread and the brighter the luster. The pearl produced by white butterfly shell has the best texture, and the first-class pearl still shines brightly even if it is placed in the dark or in the dark.

Because pearls are deeply loved by people and have high value, some people who are confused by interests use "fishy eyes and pearls" to make profits. They take fakes seriously, shoddy them and cheat passing tourists. In order to avoid being deceived, tourists can identify pearls by the following simple methods.

(l) Vision: pearls are irregular in shape and translucent, with natural and unique colorful fluorescent luster such as jade white, yellow white, light blue and flesh red; Most of the fake beads are glass imitations, with regular shapes and the same size. Generally, the surface of beads is coated with "polishing solution" made of silver powder or fish scales, which is monotonous in color and lacks halo.

(2) Handfeel: Zhu Zhen is very cool, even if the weather is hot, the tentacles feel very cool; Pseudobeads are sticky and slippery to the touch when they are tentacles. If it is pure glass imitation beads, its specific gravity is greater than that of pearls. If it is wax-filled glass imitation beads, the specific gravity is only about half of that of pearls.

(3) firing: the pearl is fired on a gas lighter, and the surface is intact and the luster is still the same; Black smoke will appear on the surface of the false beads after burning, which will lose its luster. (Source: Sea World)

Method for distinguishing pearl powder from real pearl powder

Pearl powder can play the role of health care and beauty, while fake pearl powder can not only protect health and beauty, but also endanger the health of consumers because of the excessive total number of Escherichia coli. So, how to identify its authenticity? Introduction is as follows:

High-quality pure pearl powder: raw materials are high-quality freshwater pearls, carefully selected and washed, produced according to drug quality standards, and passed the inspection.

Texture: the powder is white, uniform in color and free of impurities.

Handle: It feels delicate and smooth, and is easily absorbed by the skin.

Smell: It smells slightly fishy, but there is no other peculiar smell.

Fake pearl powder: Fake pearl powder is generally made by heating mussel shells with alkaline water and lime, then removing the black on the surface, crushing, sieving and packaging.

Texture: take a small amount of powder with your fingers, spread it out in the sun or light and observe it carefully, and you can find obvious flash. This is mica.

Color: obviously whiter than pure pearl powder.

This fake pearl powder is mixed with hydrolyzed animal protein powder, and mica will stick to the stomach after long-term use.

Inferior pearl powder:

Texture: The main raw material of this powder is the powder drilled during pearl jewelry processing, mixed with talcum powder.

Color: yellowish, mainly caused by high temperature and high heat during drilling.

Smell: there is a burning or smelly smell when taking it.

Black steel needles drill holes in pearls by heating and rotating, and the fragments of black steel needles fall into powder, which contains a large number of metal bodies. Long-term use will cause chronic poisoning. Therefore, when consumers buy pearl powder, they must go to regular big pharmacies and medical supermarkets, look for well-known brands, and must not be deceived by greed and loss.