How to distinguish organic plastics from jade, and how to distinguish jade from plastics?

1. Different heat absorption.

Natural jade has good heat absorption, and it feels cool to the touch, and it will last for a while, while artificial jade has a warm and dry feeling.

2. The density distribution is different.

Natural jade is affected by its natural environmental conditions, the structure is uneven, and the uneven light transmittance can be observed through the light to observe its corners or thinner parts, while the artificial jade is evenly distributed; However, this trick still has certain limitations, such as pickling and injecting glue, some of which still maintain some of the color and texture inside the jadeite.

3. The situation of edge collapse is different.

Because of its hard and brittle characteristics, natural jade will inevitably have chipping during processing, especially at the edge of the groove, which can be clearly seen with a magnifying glass; If it is a glass imitation, it can also be judged by the shape of the chipping, which is shell-shaped notched.

4. The feel is different.

When playing with synthetic jade, it feels jerky and easy to leave scratches after rubbing, while natural jade feels greasy and has good hardness, so it will not easily leave traces.

5. The bubbles are different.

Because of the process, there are often bubbles in the internal structure of synthetic jade Zhengyan oranges. Natural jade, on the other hand, does not have this problem, and no matter how good or bad the jade is, there will be no bubbles in its structure.

Jade and plastic can be identified by the clarity of the hard family, the jade is not easy to leave traces after being scratched by a knife, and the traces on the surface of the plastic are profound. You can also touch the touch to identify the hunger of the spike, the jade tentacles will have a cold feeling, and the plastic tentacles will have a warm and dry feeling. It can also be identified by fire, jade will not show any change after being burned by fire, and plastic will become soft and zoom after being burned by fire.

1. The hardness of jade and plastic can be identified by the hardness, and a trace is scratched on the surface with a knife, the texture of the jade is relatively hard, and the surface is not easy to leave traces. Plastic has a softer texture and can leave deep scratches on the surface.

2. Tactile jade and plastic can be touched to identify, carefully feel the touch above, jade has good thermal conductivity, and there will be a cold feeling to the touch. Plastic has poor thermal conductivity, and there will be a warm and dry feeling to the tentacles.

3. Fire jade and plastic can be identified by fire, and its surface can be burned with fire, because of the texture, the jade will not change after being burned by fire. The plastic return material is chemically synthesized, and after being burned by fire, it will become soft and charred, giving off a pungent and unpleasant odor.

1. Water identification method: drop a drop of water on the jade, if it becomes a dewdrop, it is a real jade that does not disperse for a long time.

2. Hand touch method: If it is real jade, it has a cold and lubricated feeling when touched by hand.

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

4. Tongue tip identification method: the tip of the tongue licks the real jade and has an astringent feeling, while the fake jade does not.

The identification of jade and plastic starts from the following five aspects.

1: Look at the hardness.

With a hard one. If you scratch the surface of jade, you won't leave traces, but if you scratch the plastic surface, you will leave obvious scratches.

2: Weigh the weight.

Comparing the weight of jade with plastic in your hand, the weight of jade is heavier than that made of plastic.

3: Look at the luster.

Whether the real jade is translucent or opaque, it has a warm luster, and it is normal to have a small amount of impurities or cotton wool-like patterns inside; The color of the plastic is dry, gray and dull, and there are bubbles.

4: Measure the temperature.

Holding a jade handshake is cold and very comfortable, and the plastic handshake will change with the temperature of the human body, and it will be hot after a while.

5: Listen to the sound.

Hang the jade with a thread in the air and hit it with a hard object, the sound of the jade is crisp and pleasant, and the aftertaste is melodious; The sound of plastic is light to dull dryness.

The easiest difference between jade and plastic is to look at the hardness, whether it is nephrite (Hetian jade) or jadeite (jadeite), you can scratch the glass The hardness of synthetic plastic is very low, and it is possible to scratch traces with your fingernails Lantian jade is a serpentine jade with a hardness of 4 on the Mohs scale, which is also higher than plastic In addition, from the density or specific gravity, it can also be distinguished, the feeling of plastic in the hand and jade is definitely different, and the plastic is relatively light.

You can measure the density, there are many ways to test the density on the Internet, do it, and you can know according to the density. In addition, there is a simple way, generally speaking, the hardness of jade is larger, like Hetian jade and jadeite, the knife can not be scratched, but the plastic can be scratched. You can simply give it a try.

Identification of jade authenticity.

Look at the luster: whether the real jade is translucent or opaque, it has a warm luster, and it is normal to have a small amount of impurities or cotton wool-like patterns inside; The color of fake jade is dry, gray and dull, and there are bubbles.

Hardness: Carved and scraped with a knife, the real jade leaves no traces.

Specific gravity: real jade feels heavy, and fake jade is light.

Listen to the sound: hang the jade with a thread in the air, hit it with a hard object, the sound of the genuine product is crisp and pleasant, and the aftertaste is melodious; The fake ones are relatively dull and dry.

Look at the fracture: Observe with a 10x magnifying glass, the fracture of the real jade is uneven, and the relatively fine structure can be seen; The fracture of the fake jade is neat and shiny, and it is often a glass imitation, and the fracture structure is rough and there is no waxy luster.

Chinese jade is divided into two categories: nephrite and jadeite.

Jadeite, commonly known as "jadeite" in China, is a rising star in China's traditional jade, and it is the top grade of all jade in modern times. Common jadeite colors are white, gray, pink, light brown, green, emerald green, yellow-green, purple-red, etc., most of them are opaque, some are translucent, and have a glass luster. According to the color and texture, there are more than 20 varieties such as ruby green, bright green, yellow yang green, yang pretty green, glass green, parrot green, spinach green, light water green, light yang green, frog green, melon skin green, plum green, blue green, gray green, oil green, and violet and lotus root powder.

Nephrite jade is called true jade, such as white jade, green jade, white jade, jasper and black jade, etc., they all have a waxy luster, pure milky white, from the jade of the past dynasties, our country uses jade to nephrite jade, ancient nephrite jade in our country is called traditional jade. The common colors of nephrite are white, gray-white, green, dark green, yellow, black and other colors, most of them are opaque, some are translucent, and have a vitreous luster. The best of the white jade is as white as mutton fat, which is called mutton fat jade.

Green jade is grayish white to bluish-white, and some people currently refer to gray-white green jade as green and white jade. Jasper is green or dark green, sometimes with black dirty spots, which are caused by impurities such as chrome spinel minerals. When it contains many impurities and is black, it is a precious black jade.

Topaz is also a more prized variety. There is a yellow skin shell of sugar water in the green jade, which is called "sugar jade" by some people, and some people call it "pink jade" if it is white and slightly pink, and "tiger skin jade" when it is colored with tiger skin.

People who play jade for the first time are most afraid of encountering fakes because they don't understand jade. At present, the identification of glass imitation jade products on the market is probably the most common and simplest of fakes. Common ones are small smooth rings called "jade", small chicken hearts, jade plaques, etc.

Because this kind of glass product is made of pouring mold, the high-temperature molten glass will overflow a little bit on the edge of the utensils when it is in order, and it will become a faintly convex line after cooling. If you touch it with your hands, you will find it with your eyes. If you take a magnifying glass to reflect the light, there must be large and small bubbles in it.

If you don't invite an expert, the first-time jade player should identify the authenticity of the jade by himself, which can be observed from three aspects:

1. Because the texture of the glass is very brittle and hard, the structure is arranged and dredged, and the density and toughness of jade are lacking, and it cannot withstand strong high-speed rotary carving, so it is generally not processed on the glass with high relief and round carving.

Second, use a magnifying glass to find bubbles, even if you can only see one, you can confirm that it is not jade.

3. Chromium oxide is added to the glass, and the color is close to ruby; Cobalt oxide is added, and the color is nearly sapphire; Chromium oxide and copper oxide are added to give the color to the ...... of emeraldsAnd so on, and so on, and there are many kinds of fake jade. However, their tones always appear thin, lacking the oily and rich feeling of natural jade.

The identification of new jade and old jade is different. The identification of new jade focuses on the true and false varieties, the quality of the texture and the finesse of the carving. The identification of old jade is relatively complex, in addition to several basic requirements for new jade, it is also necessary to identify the production of jade and its historical value.

Jade is actually a stone, and plastic is an organic substance.

The color of the jade is very real, you can see it.

1；It is to stick the jade on the face, and it feels very cold, and after two or three seconds, it is not cold, which means that it is true. Because jade transfers heat quickly and dissipates heat quickly! If it doesn't cool on your face, it's fake.

2；That is, the magnifying glass should look at the crystals inside 10 or 30 times to see if there are any small cracks like spider webs, and whether the color is on the cracks or on the surface of the jade, if there is, it is fake. Hetian jade looks like rice cereal, because the crystals are more delicate and the color is more uniform. Some jadeite looks like fly wings, some like a little sand star, and some like broken glass, because the jadeite crystals are not delicate enough, the color is not uniform, and there are many colors on the same piece of jade.

3；It is the identification of destruction, and it is burned with fire. It's blackened, burnt, yellowed, and smelly. Black and yellow, if the water can't be washed off, and the original color is different, it's fake. Burnt and smelly that's more fake. (If the fire really comes to burn, there will be small droplets of water attached to the jade.)

If it is fake, there will be no small droplets attached to the jade.

Remember the six key words of jadeite: color, transparency, uniformity, shape, quality, and light.

1. Color: refers to the color of jadeite.

Of all the jadeite colors, green is the most valuable. And the color change, we call it "three colors", red is to represent blessings; Green is a symbol of money; White is a symbol of longevity. Because the three colors are also called "Fu Lu Shou", if you add the purple color that represents joy, it becomes the "Fu Lu Shou Xi" of the four perfections

2. Transparency: refers to the transparency of jadeite, which we call the texture.

The original crystal of jadeite, the highest transparency is only translucent, which is called "glass species" or "ice species". "It is of better quality, and the selection of jadeite is based on the important principle of high purity and warmth and transparency.

3. Uniformity: It means that the color of jadeite should be uneven.

It is not easy to achieve a uniform color of jadeite. The value of emerald is the word "even".

Fourth, shape: refers to its shape.

How to carve, whether the handiwork is good or not, this will directly affect the absolute factor of the value of jadeite.

5. Quality: refers to the meticulousness of the crystallization of the jadeite itself and the purity of the interior and the high degree of glass luster.

If you buy a jadeite bracelet, you can use a rope to hang the bracelet and knock it to see if it will make a crisp sound, which is the basis for judging whether the jadeite texture is meticulous.

6. Illumination: It refers to using a lamp to observe whether there are cracks in the jadeite from the bottom to the top.

Defects and manual handling of the formalities. Generally, the so-called stone pattern on the market is actually the natural cleavage pattern of jade, which is only a representation of natural jade.