More "crunchy" than jade

Recently, the incident of tourists breaking the "300,000 yuan jade bracelet" in Yunnan has caused a lot of enthusiasm on the Internet, which has caused people to pay attention to the brittleness of jewelry. Emerald is called jadeite in gemstones. It is very hard and brittle and therefore very fragile. Throughout the market, gemstone jewelry, most of which are fragile products, especially the following five, you must be careful when picking and wearing.

Moonstone: "heartbroken" gem

Moonstone is considered to be the most easily broken gemstone. It is extremely brittle. After it is made into jewelry, it will be broken if it is inadvertently worn. Therefore, it takes a certain skill to wear and enjoy.

The moonstone is also known as the moonstone. This gem center will appear in the blue or bright white of the moonlight, hence the name. This beautiful color is the result of the interference, diffraction, reflection and scattering of the potassium-sodium feldspar grown in the interbedded layers of the moonstone. The ancient Romans believed that the moonstone was formed by moonlight, and the shadow of the moon and the goddess of hunting, Diana, can be seen from the stone. In medieval Europe, people thought that watching the moonstone would make people fall asleep and predict the future from dreams. In India, moonstone is also considered to be a kind of jewel related to dreams. Many Indians think that wearing moonstone at night can be a dream, so it is called "dream stone."

The "beauty dream" is always easy to break, because the internal structure of the moonstone is incoherent, so it is extremely fragile. In normal wear, people should avoid the friction between the moonstone and the high-hardness gemstone, and avoid the collision and cause the internal crack of the moonstone. At the same time, because the moonstone has a certain crack, it needs to be cleaned by the wearer to prevent the intrusion of dirt.

Topaz: afraid of tapping, afraid of beating

In terms of brittleness, the gemstone that can compete with the moonstone is probably the topaz. This gemstone is found late, and is currently more common in the market, but its price is not low.

Topaz is a gem-quality topaz, mainly produced in Brazil, Mexico, Saxony, Scotland, Japan, Ural Mountains and other places. A large number of colorless topazes are produced within 100 km of the Karamay Uyghur Devil City in Xinjiang, China. After being treated by neutron radiation, electron accelerator bombardment, cobalt 60 irradiation and heating, it can become a beautiful golden yellow. It is worth noting that the topaz irradiated by neutrons will have a certain amount of radioactivity, which needs to be placed for a certain period of time before it can be used as jewelry, otherwise it will cause certain damage to the human body.

Similar to moonstone, the topaz has a complete set of cleavage parallel to the bottom axis, so that the sanding surface cannot be parallel to the cleavage surface during grinding and polishing, otherwise it is easy to crack in the cleavage direction; Care should also be taken when setting up the topaz to avoid cleavage, which destroys the shape of the gemstone. Topaz has poor toughness and high brittleness. It is very afraid of knocking and beating. This should be paid attention to during wearing.

Tourmaline: cracked, so fragile

Tourmaline is a very popular gem in China in recent years, but many people who bought tourmaline bracelets found that tourmaline is too fragile.

Tourmaline is a type of jewel-class in the Tourmaline family. Because it can present a variety of colors, Westerners call it a "mixed gem." In 1500, a Portuguese exploration team discovered the tourmaline in Brazil and called it "the rainbow that fell into the world." In China, the word “Bixi” first appeared in the Qing Dynasty. Bixi is one of the materials used by the first and second officials to wear the flower buds. It is also used to make the beads they wear. Tourmaline is the favorite jewel of Empress Dowager Cixi. There are many tourmaline jewels in her funeral objects, including precious varieties such as watermelon tourmaline. In addition, there is a pillow made of tourmaline, which was worth 750,000 two silver.

The brittleness of tourmaline is not very high compared to moonstone and topaz. The reason why the tourmaline bead is easy to break, according to the merchant, this is because the tourmaline raw material for making this jewelry generally has many cracks. This crack may become more obvious during the processing, and it is easy to touch each other when worn. broken. However, tourmalines used as high-end jewellery are generally pure, with little or no cracks inside, and are small in size and inlaid with metal edges, so durability is good.

Emerald: I am more afraid of bumps than my grandmother

Emerald is also one of the most fragile gemstones, but because it is particularly expensive, anyone close to it must be careful, so few people really break it.

Emerald is known as the king of emeralds. The crystals are often hexagonal and have few vertebrae. The green color is very special in gemstones because of the chromium ions contained in them. In the "Yu Geng Lu", Yuan Dynasty writer and historian Tao Zongyi translated the empathic Persian pronunciation into "helping wood thorns". In the old days of China, there were still "child green" and "water green" in the emerald. In the Ming Dynasty, several emperors were very interested in emeralds. The emperor's jade belt was encrusted with a large emerald, which is now housed in the Ming Tombs of the Ming Tombs. It is said that the golden silk casket covered by the Empress Dowager Cixi is covered with a large number of pearls and other gems. There are also two emeralds weighing about 5 yuan each.

Due to its high brittleness and the formation of stress-exposed rock formations, the emerald crystals are almost all broken and have many inclusions. Crystal integrity is extremely rare, and more experienced people can pass their contents. Distinguish the origin of emeralds. Be sure to avoid all possible bumps when enjoying emeralds, and do not use an ultrasonic cleaner to clean the emeralds from shattering and drying.

Diamond: not as strong as you think.

The last to appear is the diamonds that everyone is familiar with. You may have questions, not to say that "diamonds are long-lasting, one is forever circulated"? In fact, the hardest diamond in nature also has its soft ribs, which is brittle.

Diamond is a diamond that has been honed, and diamond is a natural mineral that is the original stone. Simply put, a diamond is a simple crystal composed of carbon formed under high pressure and high temperature in the deep earth. The hardness of a diamond is 1000 times that of quartz and 150 times that of corundum. However, the brittleness of a diamond is very high, and it will be broken by force.

In recent years, with the gradual popularization of diamond wedding rings, the demand for diamonds in China has increased greatly, and the cases of shattering diamonds have emerged in an endless stream. People are surprised and complained, and they slowly realize that it is precisely because of diamonds. The high brittleness makes it possible for the craftsman to slash, saw and polish, and the diamond stones that look unobtrusive become such a beautiful diamond.

It is worth mentioning that in addition to brittleness, diamonds will evaporate under strong light, but evaporation will cause the diamond to disintegrate very slowly. Under normal circumstances, it will take about 10 billion years to achieve an observable quality loss of diamonds. degree.

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