There are few white corals, but most of them are fakes.

Identification method:

Dropping hydrochloric acid will produce bubbles. This is real coral. Grind it. If the inside and outside colors are the same, it's true. The outside is red and the inside is white. Looking at it with a magnifying glass more than 20 times, we can see that the hexagonal structure is a real coral.

Pay attention to three points when purchasing coral: First, the color should be uniform; Second, the color should be bright red; The redder, the more precious; Third, the heavier the coral, the better.

The appearance of coral is completely different from that of pearls with similar colors. The luster of pearls has certain directionality, and when magnified at low magnification, it presents a pattern very similar to flame. The white rosary carved on the pearl shell can be identified by the parallel growth structure on the shell and its pink zoning trend.

How to distinguish between true and false corals?

The material "coral" contains bubbles inside, and the broken ballast is shiny without real coral fingerprint pattern; The "coral" made of glass is conchoidal fracture, but the real coral gap is smooth; The "coral" made of noodles is not bright, and it has cracks after a long time, and the tapping sound is dull; Coral stained with bone keratin can be identified by wiping with acetone. Contemporary coral imitation uses advanced science and technology, such as white coral or sea bamboo similar to coral, and "synthetic coral" in gilson. It is extremely concealed. If we don't have rich experience or use scientific instruments to detect it, it's easy to confuse fish with pearls. In addition, the real red coral can be divided into the following three categories according to its commercial value: 1, dead coral, which has completely stopped growing, is seriously damaged and has many holes; 2. The inverted coral has basically stopped growing, and the damage degree is still small; 3. Living coral, which can continue to grow on the seabed, has a film on its surface, which is dazzling and exquisite after polishing, and is the most precious among red corals.

Ladies who have worn red coral ornaments will be surprised to find that the color of red coral beads is different in sunny and cloudy days, rainy and dry seasons, and in the south and north, and the wearer is unwell. When sweating, the color of red coral beads is different from that of normal health. This is due to the difference of external humidity and water absorption of coral pores.

Natural coral ornaments have the following characteristics:

1. has a natural oblique texture, and each coral is different.

2. Natural defects, such as small white spots, small black spots and small spots, are normal, not defects.

3. It is the only living Millennium spirit in jewelry, with gorgeous luster, warm and pleasant, crystal and charming.

4. Close-fitting wear can promote blood circulation and produce various color changes according to everyone's physical condition, which can be called a human vitality observation station;

Coral jewelry has the functions of beauty and health care, promoting blood circulation and improving eyesight, and is also a symbol of good luck.

The phenomenon of several fake and shoddy coral products;

1. Coral ornaments made of sea willow and sea bamboo. Phenomenon: the longitudinal texture is obvious and the color is uniform, giving people a dull and astringent feeling, without the unique pore characteristics of coral jade;

2. Filled coral dyeing: It is made by filling and dyeing dendritic reef-building corals with loose texture in shallow water with glue injection method. Scheme: reef building in shallow sea-glue filling-surface dyeing-polishing-making various coral products; Phenomenon: the surface is smooth, rough and fragile, and the color is easy to fade;

3. Synthetic coral dyeing: it is to grind all kinds of shellfish or reef-building corals into powder and shape them into various coral shapes. Phenomenon: There is no natural texture, almost every coral is the same, and the color is easy to fade.

4. Various jade coral-like products: dyed with dolomite or calcite; Phenomenon: the color is uniform, but it is easy to fade and dull.

5. Plastic dyed coral: coral dyed with plastic products; Phenomenon: light texture, easy to fade, no natural texture and luster.

Types and characteristics of false coral (also known as imitation coral): (1) White coral dyeing: commonly known as sea bamboo, characterized by obvious longitudinal texture and rough texture. (2) Dyeing with filled coral: it is made by filling the reef-building coral with loose texture in shallow sea with glue injection method. Its characteristics: smooth, rough and fragile surface, easy to change color. (3) Synthetic coral dyeing: all kinds of shellfish and rubber-making corals are ground into powder and molded into various coral shapes without natural texture.

(4) Imitation of various jadeite corals: dyed with dolomite and calcite. Its characteristics: If this kind of dyeing is not handled properly, it will fade quickly.

(5) Plastic dyed coral: red coral dyed with plastic products. Its characteristics are (1) light texture (2) easy to fade (3) no natural texture and luster. Seen from the surface, "Chili red" and "Candle red" are the most precious species of coral. Distinguishing features: There are obvious parallel stripes on the columnar surface or longitudinal section of red coral, but there are radial and concentric structures on the transverse section.

Pure coral jewelry has the following characteristics: 1, natural oblique texture, each coral is different. 2, there are natural defects, such as small white spots, small black spots, small spots are normal, not defects. 3. It is the only living Millennium spirit in jewelry, with gorgeous luster, warm and pleasant, crystal and charming. 4, close-fitting can promote blood circulation, and according to everyone's physical condition and produce a variety of different color changes, so it can be called the human body. ......

Identification of white coral with pictures. Is it true or not? How much is it really worth?

Your question, white coral is true; The bidding in the general market is around 200 yuan; Can be used as a variety collection, must be well preserved!

How to tell the true and false of white coral

How to identify true and false corals

Types and characteristics of fake corals (also called imitation corals);

(1) white coral dyeing: commonly known as sea bamboo, characterized by obvious longitudinal texture and rough texture.

(2) Dyeing with filled coral: it is made by filling the reef-building coral with loose texture in shallow sea with glue injection method. Its characteristics: smooth, rough and fragile surface, easy to change color.

(3) Synthetic coral dyeing: all kinds of shellfish and rubber-making corals are ground into powder and molded into various coral shapes without natural texture.

(4) Imitation of various jadeite corals: dyed with dolomite and calcite. Its characteristics: If this kind of dyeing is not handled properly, it will fade quickly.

(5) Plastic dyed coral: red coral dyed with plastic products. Its characteristics are (1) light texture (2) easy to fade (3) no natural texture and luster.

After fumigation, as long as you look carefully, you can still see the flaws, especially at the corners, where the colors and surfaces are different.

White coral identification has a picture. Help me see if it is true or not. How much is it really worth?

Judging from the photos, it's true. There's nothing wrong with it.

How to identify the authenticity of coral stones

Coral is rarely confused with other gem materials, because its unique appearance, structure and shape make it easy to identify. Hu's appearance is completely different from that of pearls with similar colors. The luster of pearls has certain directionality, and when magnified at low magnification, it presents a pattern very similar to a flame. The white rosary carved on the pearl shell can be identified by the parallel growth structure on the shell and its pink zoning trend. Another remarkable feature of coral is that it has small and shallow circular pits, which are the growth parts of a single coral. Small pits caused by some perforated marine life can also exist.

The main substitutes of imitation coral are celluloid, wood and sealing wax, all of which have no unique appearance of coral. Celluloid smells of camphor when heated, so you can scrape wood with your nails to expose the wooden structure under the artificial surface. The sealing wax has a flowing glass-like appearance under a magnifying glass. If necessary, hydrochloric acid can be used to identify these substitutes, because they will not react with hydrochloric acid. On the contrary, coral, pearl oyster and pearl oyster all react with hydrochloric acid.

How to tell whether coral beads are true or false

Tibetan doctors recorded the method of distinguishing the true and false dzi beads. Real and pure dzi beads can not only enhance human immunity, but also have a good effect on preventing stroke. However, due to the fact that the number of real "pure dzi beads" is fixed and extremely rare, unlike diamonds and precious stones, which can be obtained through mining, and due to the serious imbalance between supply and demand of dzi beads and the lack of information (in Taiwan Province Province, many players who collect dzi beads are often "closed to the outside world"), a large number of imitation dzi beads have appeared in the market. These imitation dzi beads are called "new dzi beads" by people in Taiwan Province province. They can be made of cheap resin, serpentine, glass or slightly expensive agate. Most of the new dzi beads are eroded by chemicals, and some prices are less than a quarter of the selling price. At the moment when the situation of confusing fish with pearls is very serious, we need a real "pure pearl", which is blessed and predestined. 1. It is best to be antique, clear in color and texture, oval and plump. 2. Although the dzi beads have been worn for generations, it is inevitable that they will be damaged, but they should not be seriously damaged, broken or reprocessed (Tibetans believe that the damage of the dzi beads is a disaster prevention and has lost its protective effect). 3. The more eye beads, the rarer the strange eyes, and the higher the price. The closer you get to nine eyes, the better. If there are too many eyes on a dzi bead, that is, thousands of dzi beads, the price will be greatly reduced. Preferably, each eye is about the same size. If they are different in size, they are not good dzi beads. At present, the imitation technology of New Teana is mature. If necessary, the natural lines on its surface can be observed under clear water or light to distinguish authenticity. 5. Some dzi beads have cinnabar on their surfaces (but it is not without cinnabar, not dzi beads). But this feature can be reproduced by laser in Japan at present, and the principle of judgment is that the depth of cinnabar appearing on the surface is "abnormal distribution". (That is to say, some cinnabar has been prepared, and some are already on the surface. 6. Due to the age, many generations have worn it, and the surface has a certain degree of weathering lines (also known as "fish scale lines"), and the distribution of this weathering line is also abnormal. Now the imitation dzi beads can also be fired at high temperature to produce realistic weathering patterns (the texture is relatively dry and hard). In addition to the weather patterns that are mostly "moon-shaped", the identification method is to look at the surface with a magnifying glass with high magnification (100 times or more), and the genuine product will present a galaxy pattern similar to a cosmic celestial body. 7. The perforation of dzi beads must be consistent with the color and smoothness of the surface (jade texture); Ivory or light yellow is the best, followed by black and brown. 8. The surface of dzi beads should naturally have a glossy and slippery feeling. But don't belittle the value of dzi beads because they are hazy. Some dzi beads will be cleaned by the seller in advance, so it is not easy to show their original luster. This situation should gradually improve after wearing it for a period of time. 9. Don't have leap-forward cracks in the eyes, otherwise it will wreck its value. As far as I know, goods A are first-class, but they are also classified as 369. Look at the characteristics of things, the better you say, the more expensive it is.

How do corals distinguish between true and false?

1. What is the real red coral like? It is said that "Millennium Coral Wan Nianhong" is a kind of marine skeleton called coral. It looks like a tree and its color is like fire. It ranks alongside gold, silver, pearls, agate, amber and glass as the seven treasures of Buddhism, among which red coral is the most precious. Coral grows in the deep sea of 200-2000 meters. It takes 20 years to grow an inch, and it takes 300 years to grow a kilogram. It has always been regarded as a treasure in the sea and the best in Tibet. 80% of the global red coral production comes from Taiwan Province Province. Red coral is known as "the national treasure of China". Representative place of origin of red coral: Taiwan Province deep-sea red coral color range: aka red (Aka deep red), Momo red (slightly lighter than AKA red, peach red and orange red), angel skin powder (angel face), white and white red coral jewelry product features: ① It is the only living thing in jewelry for thousands of years, with bright luster, moist and lovely, crystal and charming. ② There is a natural diagonal texture, and each coral is different. ③ There are natural defects. If there are small white spots, small black spots, small spots, etc. , is normal without defects. 4. Close-fitting clothes can promote blood circulation, and change into different colors according to everyone's physical condition, which can be called human vitality observation station. ⑤ Coral jewelry has the functions of beauty care, promoting blood circulation and improving eyesight, and it is also a symbol of good luck. 2. How should corals distinguish authenticity? Types and characteristics of false corals (also known as imitation corals): ① White coral dyeing: commonly known as sea bamboo, characterized by obvious longitudinal texture and rough texture. ② Filling coral dyeing: it is made by filling loose reef-building corals in shallow water with glue. It has the characteristics of smooth, rough, fragile and easy to change color. ③ Synthetic coral dyeing: all kinds of shellfish and rubber-making corals are ground into powder and molded into various coral shapes without natural texture. (4) Imitation of various jadeite corals: dyed with dolomite and calcite. This dye will fade quickly if it is not handled properly. ⑤ Plastic dyed coral: red coral dyed with plastic products. Very light in texture; Color fades easily; Without natural texture and luster, it is easy to identify.

Satisfied, please adopt.