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10 tricks to teach you to easily identify which glass products are posing as white jade at a glance
The most common imitation of white jade is white opal glass. White milk glass is clear and soft, and its surface is crystal clear and bright, Glass product .
How to Identify Glass Imitations
First, hardness
The hardness of white jade is high, and it is not easy to eat knives, while the hardness of glass is low, and it is easy to eat knives. White jade can draw scratches on the glass surface.
Second, resilience
White jade has strong toughness. Under the same strength, white jade is not easy to break, while opal glass is very easy to break.
Third, the texture
No matter how pure the white jade is, there is still a certain growth mechanism inside, such as natural crystals such as jade tendons, shredded radish, and crab claw patterns. The color of the glass is in one go, there is no natural change, the average is dull, and it is very clean.
Fourth, the sound
The sound can be distinguished by tapping. The sound of the glass is dull, while the white jade is crisp.
Fifth, thermal conductivity
The thermal conductivity of jade is not as strong as that of glass. When the white jade first touches, it has a warm feeling, and then it gradually becomes cool; while the glass has a cool feeling at first, and then quickly becomes hot with the body temperature.
Seventh, the proportion
The density of white jade is greater than that of glass products. The white jade has the feeling of pressing the hand, while the glass products have a light feeling.
Fifth, knife marks
Generally, the carved white jade has traces of carving. Most of the glass products are cast, there are no carved knife marks, there are many moulding marks and the edge lines are relatively smooth.
Eighth, gloss
After wearing or playing for a certain period of time, the surface of white jade shows a grease luster, and the glass products are always vitreous luster.
Ninth, bubbles
Observe under a magnifying glass and see bubbles or traces of melt flow, which must be glass products.
Tenth, detection
Go to a standardized gem and jade identification agency for testing, the composition of glass and white jade are completely differe
Several origins of white jade
Hetian white jade
The specific gravity is 2.9-3.1, the specific gravity is heavy, and it is more pressing than other jade materials, "enough on hand", this point can be distinguished by just weighing the weight with your hand. The hardness is high, 6-6.5. When you use white jade to scratch glass, you can easily scratch the Daozi. Because the hardness of glass is only 4, even an iron knife can't scratch white jade.
Color: There are several kinds of white in Hetian white jade, of which suet white is the most valuable, but no matter which kind of white, there are basic characteristics: the color is calm and dignified, luxurious but not empty, the light is restrained but not leaked, and it looks mature and mature. Thick.
Structure: White jade is a special aggregate composed of amphibole minerals. Tremolite is in the form of very fine fibrous crystals in the rock, and is intertwined with each other very closely, like a felt, so it is very tough and fine, soft and smooth, and smooth as grease. This needs to be observed under a microscope and is also one of the characteristics that distinguish it from other jades.
Qinghai white jade
Produced in the hilly area of the southwest plateau of Golmud City, Qinghai Province, it is mainly made of mountain material, which is the material for seeing children. The output is huge. Qinghai white jade and Hetian white jade are basically the same in terms of material composition, occurrence and structure, and their specific gravity and hardness are slightly lower than those of Hetian white jade.
Its identification can grasp two points: relatively good transparency, tender color but not aging; generally, Qinghai white jade has yellow-gray, smoke-gray dip dyeing; more stone flowers, flocculent cotton wool, spots, etc., this is the Visible to the naked eye. At present, the price of Qinghai white jade is not high.
Russian white jade
Produced in its Osbin area, its specific gravity and hardness are inferior to those of Hetian white jade, and its chemical composition is very different.
Now there is Russian white jade on the market, but the price is not high, you can buy a brand for about 100 yuan.
Jingbaiyu
Produced in Xishan, Beijing, it is a quartzite jade with a specific gravity of 2.65-3.0 and a hardness of 7. Because it is a granular aggregate, it is brittle, and the fracture is granular. The poor quality has the characteristics of sand, slightly transparent, and semi-greasy luster. This is the point of identification. Good Jingbai jade has a fine texture and has the characteristics of spar brightness. After polishing, it is as white as suet jade.
water white jade
Produced in Henan, it is a kind of Nanyang jade. It is very bright, glass luster, specific gravity, hardness 6-6.5, and it is easy to distinguish from the weight. Very cheap.
Xiuyu
Mainly produced in Xiuyan, Liaoning Province, specific gravity 2.44-2.62, hardness 2.5-4, oily luster, translucent to opaque. There are many varieties of Xiuyu, and they are often colored and shaped like white jade. Among them, there is a clear white or blue-gray with a slight jade flower that is more similar.
There are three main ways of distinguishing: one is that when the white jade is tapped in the air, the sound of the white jade is solemn and the sound of the jade is clear; the second is that the jade is more transparent; the third is that the hardness is low, the specific gravity is small, and it is light in the hand.
How to Identify Glass Imitations
First, hardness
The hardness of white jade is high, and it is not easy to eat knives, while the hardness of glass is low, and it is easy to eat knives. White jade can draw scratches on the glass surface.
Second, resilience
White jade has strong toughness. Under the same strength, white jade is not easy to break, while opal glass is very easy to break.
Third, the texture
No matter how pure the white jade is, there is still a certain growth mechanism inside, such as natural crystals such as jade tendons, shredded radish, and crab claw patterns. The color of the glass is in one go, there is no natural change, the average is dull, and it is very clean.
Fourth, the sound
The sound can be distinguished by tapping. The sound of the glass is dull, while the white jade is crisp.
Fifth, thermal conductivity
The thermal conductivity of jade is not as strong as that of glass. When the white jade first touches, it has a warm feeling, and then it gradually becomes cool; while the glass has a cool feeling at first, and then quickly becomes hot with the body temperature.
Seventh, the proportion
The density of white jade is greater than that of glass products. The white jade has the feeling of pressing the hand, while the glass products have a light feeling.
Fifth, knife marks
Generally, the carved white jade has traces of carving. Most of the glass products are cast, there are no carved knife marks, there are many moulding marks and the edge lines are relatively smooth.
Eighth, gloss
After wearing or playing for a certain period of time, the surface of white jade shows a grease luster, and the glass products are always vitreous luster.
Ninth, bubbles
Observe under a magnifying glass and see bubbles or traces of melt flow, which must be glass products.
Tenth, detection
Go to a standardized gem and jade identification agency for testing, the composition of glass and white jade are completely differe
Several origins of white jade
Hetian white jade
The specific gravity is 2.9-3.1, the specific gravity is heavy, and it is more pressing than other jade materials, "enough on hand", this point can be distinguished by just weighing the weight with your hand. The hardness is high, 6-6.5. When you use white jade to scratch glass, you can easily scratch the Daozi. Because the hardness of glass is only 4, even an iron knife can't scratch white jade.
Color: There are several kinds of white in Hetian white jade, of which suet white is the most valuable, but no matter which kind of white, there are basic characteristics: the color is calm and dignified, luxurious but not empty, the light is restrained but not leaked, and it looks mature and mature. Thick.
Structure: White jade is a special aggregate composed of amphibole minerals. Tremolite is in the form of very fine fibrous crystals in the rock, and is intertwined with each other very closely, like a felt, so it is very tough and fine, soft and smooth, and smooth as grease. This needs to be observed under a microscope and is also one of the characteristics that distinguish it from other jades.
Qinghai white jade
Produced in the hilly area of the southwest plateau of Golmud City, Qinghai Province, it is mainly made of mountain material, which is the material for seeing children. The output is huge. Qinghai white jade and Hetian white jade are basically the same in terms of material composition, occurrence and structure, and their specific gravity and hardness are slightly lower than those of Hetian white jade.
Its identification can grasp two points: relatively good transparency, tender color but not aging; generally, Qinghai white jade has yellow-gray, smoke-gray dip dyeing; more stone flowers, flocculent cotton wool, spots, etc., this is the Visible to the naked eye. At present, the price of Qinghai white jade is not high.
Russian white jade
Produced in its Osbin area, its specific gravity and hardness are inferior to those of Hetian white jade, and its chemical composition is very different.
Now there is Russian white jade on the market, but the price is not high, you can buy a brand for about 100 yuan.
Jingbaiyu
Produced in Xishan, Beijing, it is a quartzite jade with a specific gravity of 2.65-3.0 and a hardness of 7. Because it is a granular aggregate, it is brittle, and the fracture is granular. The poor quality has the characteristics of sand, slightly transparent, and semi-greasy luster. This is the point of identification. Good Jingbai jade has a fine texture and has the characteristics of spar brightness. After polishing, it is as white as suet jade.
water white jade
Produced in Henan, it is a kind of Nanyang jade. It is very bright, glass luster, specific gravity, hardness 6-6.5, and it is easy to distinguish from the weight. Very cheap.
Xiuyu
Mainly produced in Xiuyan, Liaoning Province, specific gravity 2.44-2.62, hardness 2.5-4, oily luster, translucent to opaque. There are many varieties of Xiuyu, and they are often colored and shaped like white jade. Among them, there is a clear white or blue-gray with a slight jade flower that is more similar.
There are three main ways of distinguishing: one is that when the white jade is tapped in the air, the sound of the white jade is solemn and the sound of the jade is clear; the second is that the jade is more transparent; the third is that the hardness is low, the specific gravity is small, and it is light in the hand.
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