How to distinguish the authentic tips of gold, let's take a look immediately!
First of all, let's take a look at the characteristics of gold. It is a very soft metal, but compared with the two metals of lead and tin, it is still hard. For pure gold, you can use your nails to draw traces. Good softness makes gold very easy to process. However, this is not ideal for the manufacturers of jewelry, because it is easy to cause the decoration to wound and lose their luster and even affect the beauty. Therefore, when making jewelry with gold, copper and silver are generally added to improve their hardness. We call this kind of gold as "gold". Europe is very clear about the golden division of gold. It consists of three numbers, such as 417 representing 10K gold, and the purity of gold is 41.7%. 585 represents 14K gold, and the purity of gold is 58.5%. 750 represents 18K gold, and the purity of gold is 75%. 917 represents 22K gold, and the purity of gold is 91.7%. 999 represents 24K gold, and the purity of gold is 99.9%. If the gold is divided into 24 parts, 24 parts are pure gold, and those excluding other metals are 24K gold, and the purity of gold is 99.9%. 22K gold represents 22 copies of gold, and the remaining 2 are other metals, and the golden degree of gold is 91.3%. 18K gold indicates that 18 copies are pure gold, and the remaining 6 are other metals, and the golden degree is 75%. Every time the number of carats decreases, the purity will be reduced by about 4.1625%. 24K gold is thousands of gold, but the thousands of gold is too soft, and it is generally not used to make jewelry or coins. Among the gold below 24 gold, other mixed metals will increase its hardness and change the color of gold. It can be said that 24K is the softest and 10K gold is the hardest, because 10K gold contains only 41.6%of pure gold, and the rest are other metals than gold. Mixing other metals will make the color of gold more beautiful, such as common white, yellow, red gold and so on. Maybe someone has seen the GF mark, which refers to gold -plated. There are carat numbers and a score before GF. For example, 1/20 14K GF represents a unit of 14K gold plating outside other metals, so 5%is pure gold and 95%is other metals. Therefore, when there are no props, we can find these "official signs." Let's judge the authenticity of gold and falseness. After understanding these knowledge, we will enter the topic below.
The first method is a very professional test method. Generally, only jewelry dealers or craftsmen will adopt, that is, nitric acid testing method.
The gold is placed in a small stainless steel container.
The drops of nitric acid on the golden device and observe the reaction.
If off the acid is green, then this golden device is either made of ordinary metals or gold -plated. If it is golden, it is gold -plated copper.
Ifly, if you present milk, it is silver -plated silver.
It without any response, then this golden device is true.
The second method is the magnetic detection method. Gold is a magnetic metal, so it can be attracted by magnets. This method is simple and easy. Use magnets to suck the golden device. If the magnet can attract gold, it is fake. However, it cannot be attracted by the magnet alone that it cannot prove that this golden device is true, because it may also be made from other non -magnetic metals.
The third is the weighing comparison method, and density tests can also be performed. Gold of the same volume is more than 40%heavier than silver, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. The gold jewelry should have a feeling of sinking in the hand, and the fake gold jewelry feels lightly. The density of 24K pure gold is about 19.3 grams/ml, which is higher than most metals. So detection purity helps you judge the authenticity of gold. According to experience, the higher the density, the higher the purity of the gold. Note that when the density is detected, the gold device cannot be inlaid with any jewelry. See the warning part of the precautions for density testing. The density test of gold can be filled with water in a small bottle. If there is a millimeter scale on the wall of the small bottle, it will help you to complete the test more conveniently. It doesn't matter how much water is. As long as the gold ware is put in, the water does not overflow, so don't pretend to be full. After putting in the golden device and after the gold ware, you must carefully record the water level height. Then put the goldware into the bottle. Record the changes in the water level before and after, and then calculate the value of the water volume, which is accurate to milliliters. Calculate density with the following formulas. Gold density = total weight/water increase in water. If the density is close to 19 grams/ml, it is real gold or metal with density close to gold. The density of 14K gold is equivalent to 12.9-14.6 grams/ml, yellow 18K gold density is equivalent to 15.2-15.9 grams/ml, white 18K gold density is equivalent to 14.7-16.9 grams/ml, and 22K gold density is equivalent to 17.7-17.8 grams/ml.
The fourth method is to bite with teeth. We can often see people bite gold on the screen to test the authenticity. If the Olympic player takes the gold medal, we will bite. Theoretically, the color of the gully in the bite seal has not changed. It means that the real gold is real, and the deeper the bite marks, the higher the goldenness of the golden gold. But we do not recommend this method because this may hurt the teeth. In addition, because lead is softer than gold, bite marks will be left on the gold -plated lead.
The last method is not recommended to use, because your gold ware may be damaged, but this is also a good way to expose the fake gold. Find an unlawish porcelain plate. If not, you can buy a piece of porcelain at home in the home improvement store.
Culed porcelain plates with gold wares. If a black scratch is left on the porcelain plate, your gold ware is not real gold. If the scratch is golden, it is true gold. Maybe some people say that the older generation of experience can see the authenticity of gold, but now the alloy technology is too powerful, and it can achieve the true level of fake chaos. Therefore loss.
First, visual check 1, check the official logo of gold. Generally, 999 or 990, or 10K, 18K, 22K, 24K. It is not considered lower than 10K, because the content of gold is too low. If you observe with a magnifying glass, you will see more carefully. 2, ancient gold jewelry will not have obvious official purity logos. 3, of course, there will be official signs of counterfeit gold jewelry, so further inspections need to be performed. 4, find obvious discoloration. Check the wear area of the golden surface, which is usually on the edge of the golden products to check the color change there. If the golden color disappears and becomes another color, then this product is just a gold -plated. . The bromine chemistry test 1. Put the golden products into the alcohol solution for a small meeting. 2. Pour a filter paper sperm solution. 3. At this time, the filter paper becomes gray -purple. 4, drop 4 drops of bromo -A reagent to the filter paper, if the filter paper becomes white, then this gold product is real gold. The test time takes 20 minutes. . Magnetic test This is a simple test, but it is not a sufficient proof to prove whether it is true gold. You can find a powerful magnet for testing. Gold is not a magnetic metal. If your product is attracted by magnets, it is enough to prove that this product is not gold. But you can't prove that it is gold because your product does not respond to magnets, because there are many non -magnetic metals. . The density test is only a very small metal density exceeding gold. The density of pure 24k gold is about 19.3 grams/ml, which is much higher than other metals. The density test method is enough to prove that your product is gold. The higher the density, the higher the purity of gold. Make sure your product has no additional gem. 1. If you do not have equipment in this area, jewelry shops can usually do density testing for you. 2, you can put your golden products in the container full of water, and then test the volume of overflowing water, and then except for the weight of the product you call, that is, the density of your gold product. Keep in mind that different gold purity has different grams/ml ratio: 14k- 12.9 ~ 14.6 grams/ml 18k gold-15.2 to 15.9 grams/ml 18k platinum-14.7 ~ 16.9 grams/ml 22k-17.7%to 17.8 grams to 17.8 grams /Ml. . Bite test everyone has watched movies, and the mininger bite gold to test it. I also saw that when the Olympic athletes won the gold medal, they would bite their "gold" medal. How simple this test is. 1, bite a gently. 2. Check your bite marks. The deeper the bite marks, the higher the purity of the gold. Actually, this is not recommended for testing, which will damage your teeth. What's more, the lead will be given to the gold, and the lead is softer. 6. Ceramic scratch testing 1. Using unlawish ceramics. If you don't have this, you can buy it from a ceramic shop. 2. Cover your gold products with ceramics. If it is a black scratch, it means that your product is not gold. If it is a golden scratch, it proves that your product is gold.
Many consumers will ask, is there fake gold? The answer is yes. Basically, the more popular things are, the higher the possibility of fake that thing. Now as the price of gold gradually increases, our vendors also use gold to operate. The phenomenon, but they fake them, we also have high tricks to distinguish!
Methods/steps
It color: the higher the purity of the gold jewelry, the deeper the color. If there is no gold medal, you can determine the general color according to the following color (based on green gold. The so -called green gold is only silver in gold): dark red yellow color is more than 95%, and light red yellow yellow to 95% The pale yellow is 80%to 85%, the cyan is 65%to 70%, the color blue with white light is only 50%to 60%, and the slightly yellow and white are less than 50%. Generally, Qiqing, Eight Huang, and Jiu Chi can be used as a reference.
This weight: The proportion of gold is 1932, which is more important than metal such as silver, copper, lead, zinc, aluminum. The volume of gold is more than 40%heavier than the silver, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. The gold jewelry should have a feeling of sinking in the hand, and the fake gold jewelry feels lightly. This method is not suitable for gold jewelry inlaid.
Itt the hardness of the hardness: pure gold is soft and low. It can draw light marks with nails. Teeth bite can leave tooth marks. High -colored gold jewelry is low in color. Hard, bending method can also test hardness, pure gold is soft, easy to bend, the lower the purity, the less likely to bend. If it is made for raw gold, the curved is broken, and the section has obvious sand granules.
In listening to the sound: The real gold with a color of more than 99%is thrown to the hard ground, which will make a tap sound, there is no rhyme or elasticity. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds.
This burning with fire: The jewelry will be burned red (do not melt the jewelry) with the fire (do not melt the jewelry), and observe the color change after cooling. During different degrees, it is not pure gold. Generally, the lower the color, the stronger the color, and the darkens are all, indicating that it is a fake gold jewelry.
Themids: Domestic gold jewelry is all prepared according to international standards, and stamps, such as "24K" indicate "foot red" or "foot gold"; 18K gold, indicate "18K", indicate "18K" Words; those who have less than 10k in color, cannot be called K -printed number according to regulations. At present, illegal elements are commonly used to make fake cards and imitation stamps in the society. They use rare gold, Asian gold, and even brass to impersonate real gold. Therefore, the identification of gold jewelry must be comprehensively determined according to the sample to determine the true and false and the quality.
Gold is not only an important material for making jewelry, but also one of the important products of investing in financial management. Therefore, gold has always been the fragrant sprout in the jewelry market. Many people will use excess money to buy gold. But because it is too popular, there are also many fraud gold in the jewelry market. These fake gold circulate in the market, leading to damage to the interests of the public. In order to prevent the public from buying fake gold, let me tell everyone how to distinguish the authenticity of gold. On how to distinguish the authenticity of gold? First of all, you can distinguish the color of gold. Most of the fake gold on the market will be mixed with 铱 elements, but because the gold and the elements cannot be fused together, everyone can use it. Observing the golden surface of gold, you will see the highlight of white, but no matter what everyone thinks of the color is golden brown.
 It look at the logo of gold. In China, gold jewelry must be used as a killing in accordance with national standards. It is pure gold, so you can see whether the gold jewelry is marked with 24K or a thousand gold marks. If the gold jewelry is not labeled, then everyone must be careful. The gold jewelry is likely to be fake. In addition, if it is marked with 18K, etc., then everyone must know that the jewelry cannot be regarded as pure gold.
 OK, I will introduce to you how to distinguish the authenticity of gold and false, I do n’t know if you have learned how to distinguish the authenticity of gold? If you also want to know friends who are golden or other jewelry knowledge, come to pay attention to the jade carving master Netease. The jade carving master has rich jewelry knowledge and a large amount of jade carving boutique for everyone to read and appreciate.
Domestic gold jewelry must be used to be killed in accordance with regulations. It indicates that 24K represents a purity of more than 99.6%, indicating that 18K means that the purity is above 75%.
How to distinguish the authentic tips of gold, let's take a look immediately!
First of all, let's take a look at the characteristics of gold. It is a very soft metal, but compared with the two metals of lead and tin, it is still hard. For pure gold, you can use your nails to draw traces. Good softness makes gold very easy to process. However, this is not ideal for the manufacturers of jewelry, because it is easy to cause the decoration to wound and lose their luster and even affect the beauty. Therefore, when making jewelry with gold, copper and silver are generally added to improve their hardness. We call this kind of gold as "gold". Europe is very clear about the golden division of gold. It consists of three numbers, such as 417 representing 10K gold, and the purity of gold is 41.7%. 585 represents 14K gold, and the purity of gold is 58.5%. 750 represents 18K gold, and the purity of gold is 75%. 917 represents 22K gold, and the purity of gold is 91.7%. 999 represents 24K gold, and the purity of gold is 99.9%. If the gold is divided into 24 parts, 24 parts are pure gold, and those excluding other metals are 24K gold, and the purity of gold is 99.9%. 22K gold represents 22 copies of gold, and the remaining 2 are other metals, and the golden degree of gold is 91.3%. 18K gold indicates that 18 copies are pure gold, and the remaining 6 are other metals, and the golden degree is 75%. Every time the number of carats decreases, the purity will be reduced by about 4.1625%. 24K gold is thousands of gold, but the thousands of gold is too soft, and it is generally not used to make jewelry or coins. Among the gold below 24 gold, other mixed metals will increase its hardness and change the color of gold. It can be said that 24K is the softest and 10K gold is the hardest, because 10K gold contains only 41.6%of pure gold, and the rest are other metals than gold. Mixing other metals will make the color of gold more beautiful, such as common white, yellow, red gold and so on. Maybe someone has seen the GF mark, which refers to gold -plated. There are carat numbers and a score before GF. For example, 1/20 14K GF represents a unit of 14K gold plating outside other metals, so 5%is pure gold and 95%is other metals. Therefore, when there are no props, we can find these "official signs." Let's judge the authenticity of gold and falseness. After understanding these knowledge, we will enter the topic below.
The first method is a very professional test method. Generally, only jewelry dealers or craftsmen will adopt, that is, nitric acid testing method.
The gold is placed in a small stainless steel container.
The drops of nitric acid on the golden device and observe the reaction.
If off the acid is green, then this golden device is either made of ordinary metals or gold -plated. If it is golden, it is gold -plated copper.
Ifly, if you present milk, it is silver -plated silver.
It without any response, then this golden device is true.
The second method is the magnetic detection method. Gold is a magnetic metal, so it can be attracted by magnets. This method is simple and easy. Use magnets to suck the golden device. If the magnet can attract gold, it is fake. However, it cannot be attracted by the magnet alone that it cannot prove that this golden device is true, because it may also be made from other non -magnetic metals.
The third is the weighing comparison method, and density tests can also be performed. Gold of the same volume is more than 40%heavier than silver, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. The gold jewelry should have a feeling of sinking in the hand, and the fake gold jewelry feels lightly. The density of 24K pure gold is about 19.3 grams/ml, which is higher than most metals. So detection purity helps you judge the authenticity of gold. According to experience, the higher the density, the higher the purity of the gold. Note that when the density is detected, the gold device cannot be inlaid with any jewelry. See the warning part of the precautions for density testing. The density test of gold can be filled with water in a small bottle. If there is a millimeter scale on the wall of the small bottle, it will help you to complete the test more conveniently. It doesn't matter how much water is. As long as the gold ware is put in, the water does not overflow, so don't pretend to be full. After putting in the golden device and after the gold ware, you must carefully record the water level height. Then put the goldware into the bottle. Record the changes in the water level before and after, and then calculate the value of the water volume, which is accurate to milliliters. Calculate density with the following formulas. Gold density = total weight/water increase in water. If the density is close to 19 grams/ml, it is real gold or metal with density close to gold. The density of 14K gold is equivalent to 12.9-14.6 grams/ml, yellow 18K gold density is equivalent to 15.2-15.9 grams/ml, white 18K gold density is equivalent to 14.7-16.9 grams/ml, and 22K gold density is equivalent to 17.7-17.8 grams/ml.
The fourth method is to bite with teeth. We can often see people bite gold on the screen to test the authenticity. If the Olympic player takes the gold medal, we will bite. Theoretically, the color of the gully in the bite seal has not changed. It means that the real gold is real, and the deeper the bite marks, the higher the goldenness of the golden gold. But we do not recommend this method because this may hurt the teeth. In addition, because lead is softer than gold, bite marks will be left on the gold -plated lead.
The last method is not recommended to use, because your gold ware may be damaged, but this is also a good way to expose the fake gold. Find an unlawish porcelain plate. If not, you can buy a piece of porcelain at home in the home improvement store.
Culed porcelain plates with gold wares. If a black scratch is left on the porcelain plate, your gold ware is not real gold. If the scratch is golden, it is true gold. Maybe some people say that the older generation of experience can see the authenticity of gold, but now the alloy technology is too powerful, and it can achieve the true level of fake chaos. Therefore loss.
First, visual check
1, check the official logo of gold. Generally, 999 or 990, or 10K, 18K, 22K, 24K. It is not considered lower than 10K, because the content of gold is too low. If you observe with a magnifying glass, you will see more carefully.
2, ancient gold jewelry will not have obvious official purity logos.
3, of course, there will be official signs of counterfeit gold jewelry, so further inspections need to be performed.
4, find obvious discoloration. Check the wear area of the golden surface, which is usually on the edge of the golden products to check the color change there. If the golden color disappears and becomes another color, then this product is just a gold -plated.
. The bromine chemistry test
1. Put the golden products into the alcohol solution for a small meeting.
2. Pour a filter paper sperm solution.
3. At this time, the filter paper becomes gray -purple.
4, drop 4 drops of bromo -A reagent to the filter paper, if the filter paper becomes white, then this gold product is real gold.
The test time takes 20 minutes.
. Magnetic test
This is a simple test, but it is not a sufficient proof to prove whether it is true gold. You can find a powerful magnet for testing.
Gold is not a magnetic metal. If your product is attracted by magnets, it is enough to prove that this product is not gold. But you can't prove that it is gold because your product does not respond to magnets, because there are many non -magnetic metals.
. The density test is only a very small metal density exceeding gold. The density of pure 24k gold is about 19.3 grams/ml, which is much higher than other metals. The density test method is enough to prove that your product is gold. The higher the density, the higher the purity of gold. Make sure your product has no additional gem.
1. If you do not have equipment in this area, jewelry shops can usually do density testing for you.
2, you can put your golden products in the container full of water, and then test the volume of overflowing water, and then except for the weight of the product you call, that is, the density of your gold product. Keep in mind that different gold purity has different grams/ml ratio: 14k- 12.9 ~ 14.6 grams/ml 18k gold-15.2 to 15.9 grams/ml 18k platinum-14.7 ~ 16.9 grams/ml 22k-17.7%to 17.8 grams to 17.8 grams /Ml.
. Bite test
everyone has watched movies, and the mininger bite gold to test it. I also saw that when the Olympic athletes won the gold medal, they would bite their "gold" medal. How simple this test is.
1, bite a gently.
2. Check your bite marks. The deeper the bite marks, the higher the purity of the gold.
Actually, this is not recommended for testing, which will damage your teeth. What's more, the lead will be given to the gold, and the lead is softer.
6. Ceramic scratch testing
1. Using unlawish ceramics. If you don't have this, you can buy it from a ceramic shop.
2. Cover your gold products with ceramics. If it is a black scratch, it means that your product is not gold. If it is a golden scratch, it proves that your product is gold.
Many consumers will ask, is there fake gold? The answer is yes. Basically, the more popular things are, the higher the possibility of fake that thing. Now as the price of gold gradually increases, our vendors also use gold to operate. The phenomenon, but they fake them, we also have high tricks to distinguish!
Methods/steps
It color: the higher the purity of the gold jewelry, the deeper the color. If there is no gold medal, you can determine the general color according to the following color (based on green gold. The so -called green gold is only silver in gold): dark red yellow color is more than 95%, and light red yellow yellow to 95% The pale yellow is 80%to 85%, the cyan is 65%to 70%, the color blue with white light is only 50%to 60%, and the slightly yellow and white are less than 50%. Generally, Qiqing, Eight Huang, and Jiu Chi can be used as a reference.
This weight: The proportion of gold is 1932, which is more important than metal such as silver, copper, lead, zinc, aluminum. The volume of gold is more than 40%heavier than the silver, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. The gold jewelry should have a feeling of sinking in the hand, and the fake gold jewelry feels lightly. This method is not suitable for gold jewelry inlaid.
Itt the hardness of the hardness: pure gold is soft and low. It can draw light marks with nails. Teeth bite can leave tooth marks. High -colored gold jewelry is low in color. Hard, bending method can also test hardness, pure gold is soft, easy to bend, the lower the purity, the less likely to bend. If it is made for raw gold, the curved is broken, and the section has obvious sand granules.
In listening to the sound: The real gold with a color of more than 99%is thrown to the hard ground, which will make a tap sound, there is no rhyme or elasticity. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds.
This burning with fire: The jewelry will be burned red (do not melt the jewelry) with the fire (do not melt the jewelry), and observe the color change after cooling. During different degrees, it is not pure gold. Generally, the lower the color, the stronger the color, and the darkens are all, indicating that it is a fake gold jewelry.
Themids: Domestic gold jewelry is all prepared according to international standards, and stamps, such as "24K" indicate "foot red" or "foot gold"; 18K gold, indicate "18K", indicate "18K" Words; those who have less than 10k in color, cannot be called K -printed number according to regulations. At present, illegal elements are commonly used to make fake cards and imitation stamps in the society. They use rare gold, Asian gold, and even brass to impersonate real gold. Therefore, the identification of gold jewelry must be comprehensively determined according to the sample to determine the true and false and the quality.
Gold is not only an important material for making jewelry, but also one of the important products of investing in financial management. Therefore, gold has always been the fragrant sprout in the jewelry market. Many people will use excess money to buy gold. But because it is too popular, there are also many fraud gold in the jewelry market. These fake gold circulate in the market, leading to damage to the interests of the public. In order to prevent the public from buying fake gold, let me tell everyone how to distinguish the authenticity of gold.
On how to distinguish the authenticity of gold? First of all, you can distinguish the color of gold. Most of the fake gold on the market will be mixed with 铱 elements, but because the gold and the elements cannot be fused together, everyone can use it. Observing the golden surface of gold, you will see the highlight of white, but no matter what everyone thinks of the color is golden brown.

It look at the logo of gold. In China, gold jewelry must be used as a killing in accordance with national standards. It is pure gold, so you can see whether the gold jewelry is marked with 24K or a thousand gold marks. If the gold jewelry is not labeled, then everyone must be careful. The gold jewelry is likely to be fake. In addition, if it is marked with 18K, etc., then everyone must know that the jewelry cannot be regarded as pure gold.

OK, I will introduce to you how to distinguish the authenticity of gold and false, I do n’t know if you have learned how to distinguish the authenticity of gold? If you also want to know friends who are golden or other jewelry knowledge, come to pay attention to the jade carving master Netease. The jade carving master has rich jewelry knowledge and a large amount of jade carving boutique for everyone to read and appreciate.
Domestic gold jewelry must be used to be killed in accordance with regulations. It indicates that 24K represents a purity of more than 99.6%, indicating that 18K means that the purity is above 75%.