5 thoughts on “How to identify the authenticity of gold”
Israel
Differential gold requires some experience. Simply introduce some identification methods. But it is best to go to the gold shop!
(1) See 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 contains only silver ingredients in gold); dark red yellow color is more than 95 %, light red yellow 90-95 % The pale yellow is 80-85 %, the cyan is 65-70 %, and the white light is only 50--60 % white light. The slightly yellow and white are less than 50 %. Generally, Qiqing, Eight Huang, and Jiu Chi can be used as a reference. (2) Type weight: The proportion of gold is 19.32, 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.
(3) Look at the hardness: pure gold is soft and low. It can draw light marks with nails. Teeth bite can leave tooth prints. High -colored gold jewelry is low and soft, with copper with copper, contains copper containing copper, contains copper containing copper The harder, the harder, the bending method can also test the hardness, the pure gold is soft, it is easy to bend, the lower the purity, the less likely to bend.
(4) Listening to the sound: Real gold with a color of more than 99 % throwing it on the hard ground, it 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.
(5) Burning with fire: The jewelry will be burned red (do not melt the jewelry) with fire (do not melt the jewelry), and observe the color change after cooling. Dark or different degrees of darkness 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.
(6) Seeing the mark: Domestic gold jewelry is allicized and prepared according to international standards, and the killing records, such as "24K" indicate "foot red" or "foot gold"; The word "18K" is marked, and those who have a lower color are lower than LOK. At present, illegal elements are commonly used to manufacture 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 of the real.
The accurate identification of gold jewelry in accurate commonly used common methods.
(1) Testing gold stone method: Select the black test gold stone with delicate texture, use the standard tasting films with different gold content (on the gold medal) on the test gold stone, and then put the gold jewelry sample you want to identify in The scratches on the same goldstone, drip the concentrated nitric acid to remove the impurities, and find the traces left on the test gold stones compared with the traces of the tested slices. The accurate gold content of gold jewelry samples to be determined.
(2) Chemical method: also known as reagent test method. Gold is insoluble in separate nitric acid, sulfuric acid, and hydrochloric acid, and silver and copper ingredients can be dissolved with nitric acid. Take gold decorative sample. Putting nitric acid on a certain part, if gold will not change color, if it is silver products, it will generate silver oxide and turn black; For gold jewelry with a gold content of more than 95 %, test with nitric acid, the surface changes very small.
Gold jewelry refers to jewelry made of gold as the main raw material. The chemical symbol of gold is AU, with a gravity of 17.4 and Mo's hardness is 2.5. Gold jewelry can be divided into two categories: pure gold and K gold in terms of gold content. The gold content of pure gold jewelry is more than 99%, and it can reach up to 99.99%, so it is known as "nine nine gold", "full gold", and "red gold". K gold jewelry is a jewelry made of other metals (such as silver and copper metals) to its golden materials, also known as "gold" and "color gold". Due to the number of other metals, different K numbers of K gold jewelry are formed. k数的大小与含金量如下：rn 24k，99%以上；22k，91.7%；21k，87.5%；18k，75%；14k，58.5%；12k，50%；10k，41.66%；9k， 37.5% 8k, 33.34% 6k, 25% In gold jewelry, pure gold jewelry texture is soft, teeth are bite, and it is easy to bend. , I feel a heavy feeling. K -gold's head jewelry texture is slightly harder, the teeth bite the use of mintes, the color is yellow in yellow, and the number of K is reduced, the white increases, and the yellow is shallow. The feel of K gold jewelry is not as heavy as pure gold jewelry. In addition, both pure gold and K gold jewelry have a printing sign. Printing on gold jewelry is useful "gold" and "KG" English letters. When indicating the gold content, the word "99" or "24K" indicates that it is pure gold jewelry. The K gold jewelry is marked with the corresponding K number, such as the "18K" K gold jewelry, and its gold content is 75 %. In addition, the jewelry also marks the printing of the origin of different manufacturers. Really gold jewelry, printing standards, completeness, and clear, is an important identification of judgment. The types of jewelry that is easy to confuse with gold jewelry, some are gold -plated jewelry, some are gold jewelry, some are copper jewelry, and some are copper alloy jewelry. The following briefly explain: Gold -plated jewelry is plated on the surface of other metal jewelry on the surface of the metal jewelry. The color is similar to the real gold jewelry. The golden light is bright, and it is difficult to confirm the new time. However, the gold -plated jewelry feels lightly, the texture is hard, the teeth are bitter, and it is easy to fade with a long time. Some gold -plated gold -plated jewelry, the color is either red or white, or flowers. This gold jewelry refers to 24K or 22K gold foil on other metal surfaces, such as the KD number of K gold foil is too low, and its softness is poor. The appearance of the golden jewelry is similar to the real gold jewelry. The golden light is sparkling and it is not easy to fade, making it difficult to argue. However, if you carefully observe the depression, angle, back, etc. of the jewelry, you can find that the gold foil is uneven and there is a phenomenon of tilting edges. If there are broken joints on the jewelry, the cross section of the metal material can be seen from the outside. In addition, the feel of the gold jewelry is also lighter, the texture is harder than the pure gold jewelry, the teeth are bitter, and it is not easy to bend. The copper jewelry color is yellow with red, fake, darker luster, soft texture, and light weight. Copper alloy jewelry (copper tin alloy), white color, hard and light quality, long -term coloring, will make the skin darker. Whether it is gold -plated jewelry, gold jewelry, or copper jewelry, and Asian gold jewelry, it is generally not printed with gold jewelry. Or it is different from gold jewelry. If some jewelry is engraved with English letters "GK", it means "gold -plated". Or the signature traces are blurred and crooked. Consumers should identify whether there are printing, printing whether the printing is in compliance with the above provisions, and whether the printing is clear, etc. to determine the authenticity of gold jewelry. 1. Gold is "seven greens, eight yellows, nine purple ten red". It means that the blue gold contains 70%, the yellow contains 80%, the purple is 90%gold, and the red is almost 100%gold. 2. Sound identification method. Let the jewelry fall into the hard place, the sound is dull, and the explanation is good; the sound is crisp and the color difference is different. 3. Bend identification method. Twitte -folding utensils, the real gold is soft, easy to bend and not easy to break. 4. Trail identification method. With a hard needle tip on the surface of the real gold, there are obvious traces, and the false traces are blurred. 5. Demonstration of weight. Gold is the largest proportion of the material, and its proportion is 19:37. Bonard and red copper of the same weight are much larger than the same weight gold and red gold. You can know. 6. Fire burning identification method. True gold jewelry can not change color with fire, but it is not resistant to fake. After burning, it will turn dark brown, and it will lose light. Good luck!
Pay content for time limit to check for freenAnswer Hello, how do you use your mobile phone to distinguish the authentic gold ring? 1. Inquiry on the mobile phone book, you can check the encoding. When buying a gold ring, the merchant usually comes with a certificate with all the information of the gold ring on it to Baidu on its own. There are no such fake gold rings, or the information searched is not right. 2. The hardness mobile phone can see the hardness. Use the mobile phone to draw one force on the surface of the gold ring. After the real gold ring is engraved by the mobile phone, a deeper mark will appear on the surface. The marks on the surface of the fake gold rings are relatively light, and there are even no imprint. 3. Lighting mobile phones can see the lights. With the help of mobile phone lights to view the surface color of the gold ring, the surface of the real gold ring is golden yellow, and the color is well -colored. The color of the fake gold ring is a little pale, and it is faintly gray or green.nIf you answer your help, please help give a praise ~ In addition, you can click my avatar to follow me. In this way, you can ask me to consult me directly. Thank you for your support and look forward to you with you Meet again
1. Look at the color. The higher the purity of the gold jewelry, the darker the color. If there is no gold medal, you can determine the general color according to the following color (based on the golden gold. The so -called green gold is only the silver component in the gold); The pale yellow is 80 ~ 85%, the cyan is 65 ~ 70%, the color is only 50 ~ 60%white light, and the slightly yellow is less than 50%white.
2. 掂 weight. The density of gold is 19.32, which is higher than ordinary metal, so the gold will be heavier at the same volume. 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.
3. Listen to the sound. The real gold with more than 99%of the real gold is thrown on the hard ground, and it will make a 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.
4. Testing hardness. Pure gold is soft and low, and shallow marks can be used to use nails. Teeth bite can leave tooth marks. High -colored gold jewelry is lower than the soft color. Jin is soft, easy to bend, the lower the purity, the less likely to bend.
5. Burning with fire. Use the fire to burn red (do not melt the jewelry), and observe the color change after cooling. If the surface is still the original golden color, it is pure gold; Generally, the lower the color, the stronger the color, and the darkens are all, indicating that it is a fake gold jewelry.
6. See the mark. Domestic gold jewelry is allicized and prepared according to international standards, and the killing records, such as "24K" indicate "foot red" or "foot gold"; 18K gold, the word "18K", which is lower than LOK, according to regulations, according to regulations, according to regulations You can't play the K -printed number.
At present, criminals in the society are commonly used to make fake cards and imitation stamps, and use thin gold, Asian gold, and even brass to impersonate real gold. Therefore He is high and low.
Both. Buy gold to find the seller to identify the card, and then go to the bank to identify it. With the appraisal card, the bank does not accept the appraisal fee. Besides, no one dares to sell fake money
Differential gold requires some experience. Simply introduce some identification methods. But it is best to go to the gold shop!
(1) See 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 contains only silver ingredients in gold); dark red yellow color is more than 95 %, light red yellow 90-95 % The pale yellow is 80-85 %, the cyan is 65-70 %, and the white light is only 50--60 % white light. The slightly yellow and white are less than 50 %. Generally, Qiqing, Eight Huang, and Jiu Chi can be used as a reference. (2) Type weight: The proportion of gold is 19.32, 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.
(3) Look at the hardness: pure gold is soft and low. It can draw light marks with nails. Teeth bite can leave tooth prints. High -colored gold jewelry is low and soft, with copper with copper, contains copper containing copper, contains copper containing copper The harder, the harder, the bending method can also test the hardness, the pure gold is soft, it is easy to bend, the lower the purity, the less likely to bend.
(4) Listening to the sound: Real gold with a color of more than 99 % throwing it on the hard ground, it 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.
(5) Burning with fire: The jewelry will be burned red (do not melt the jewelry) with fire (do not melt the jewelry), and observe the color change after cooling. Dark or different degrees of darkness 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.
(6) Seeing the mark: Domestic gold jewelry is allicized and prepared according to international standards, and the killing records, such as "24K" indicate "foot red" or "foot gold"; The word "18K" is marked, and those who have a lower color are lower than LOK. At present, illegal elements are commonly used to manufacture 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 of the real.
The accurate identification of gold jewelry in accurate commonly used common methods.
(1) Testing gold stone method: Select the black test gold stone with delicate texture, use the standard tasting films with different gold content (on the gold medal) on the test gold stone, and then put the gold jewelry sample you want to identify in The scratches on the same goldstone, drip the concentrated nitric acid to remove the impurities, and find the traces left on the test gold stones compared with the traces of the tested slices. The accurate gold content of gold jewelry samples to be determined.
(2) Chemical method: also known as reagent test method. Gold is insoluble in separate nitric acid, sulfuric acid, and hydrochloric acid, and silver and copper ingredients can be dissolved with nitric acid. Take gold decorative sample. Putting nitric acid on a certain part, if gold will not change color, if it is silver products, it will generate silver oxide and turn black; For gold jewelry with a gold content of more than 95 %, test with nitric acid, the surface changes very small.
Gold jewelry refers to jewelry made of gold as the main raw material. The chemical symbol of gold is AU, with a gravity of 17.4 and Mo's hardness is 2.5. Gold jewelry can be divided into two categories: pure gold and K gold in terms of gold content. The gold content of pure gold jewelry is more than 99%, and it can reach up to 99.99%, so it is known as "nine nine gold", "full gold", and "red gold". K gold jewelry is a jewelry made of other metals (such as silver and copper metals) to its golden materials, also known as "gold" and "color gold". Due to the number of other metals, different K numbers of K gold jewelry are formed. k数的大小与含金量如下：rn 24k，99%以上；22k，91.7%；21k，87.5%；18k，75%；14k，58.5%；12k，50%；10k，41.66%；9k， 37.5%
8k, 33.34%
6k, 25%
In gold jewelry, pure gold jewelry texture is soft, teeth are bite, and it is easy to bend. , I feel a heavy feeling. K -gold's head jewelry texture is slightly harder, the teeth bite the use of mintes, the color is yellow in yellow, and the number of K is reduced, the white increases, and the yellow is shallow. The feel of K gold jewelry is not as heavy as pure gold jewelry. In addition, both pure gold and K gold jewelry have a printing sign. Printing on gold jewelry is useful "gold" and "KG" English letters. When indicating the gold content, the word "99" or "24K" indicates that it is pure gold jewelry. The K gold jewelry is marked with the corresponding K number, such as the "18K" K gold jewelry, and its gold content is 75 %. In addition, the jewelry also marks the printing of the origin of different manufacturers. Really gold jewelry, printing standards, completeness, and clear, is an important identification of judgment.
The types of jewelry that is easy to confuse with gold jewelry, some are gold -plated jewelry, some are gold jewelry, some are copper jewelry, and some are copper alloy jewelry. The following briefly explain: Gold -plated jewelry is plated on the surface of other metal jewelry on the surface of the metal jewelry. The color is similar to the real gold jewelry. The golden light is bright, and it is difficult to confirm the new time. However, the gold -plated jewelry feels lightly, the texture is hard, the teeth are bitter, and it is easy to fade with a long time. Some gold -plated gold -plated jewelry, the color is either red or white, or flowers.
This gold jewelry refers to 24K or 22K gold foil on other metal surfaces, such as the KD number of K gold foil is too low, and its softness is poor. The appearance of the golden jewelry is similar to the real gold jewelry. The golden light is sparkling and it is not easy to fade, making it difficult to argue. However, if you carefully observe the depression, angle, back, etc. of the jewelry, you can find that the gold foil is uneven and there is a phenomenon of tilting edges. If there are broken joints on the jewelry, the cross section of the metal material can be seen from the outside. In addition, the feel of the gold jewelry is also lighter, the texture is harder than the pure gold jewelry, the teeth are bitter, and it is not easy to bend.
The copper jewelry color is yellow with red, fake, darker luster, soft texture, and light weight. Copper alloy jewelry (copper tin alloy), white color, hard and light quality, long -term coloring, will make the skin darker.
Whether it is gold -plated jewelry, gold jewelry, or copper jewelry, and Asian gold jewelry, it is generally not printed with gold jewelry. Or it is different from gold jewelry. If some jewelry is engraved with English letters "GK", it means "gold -plated". Or the signature traces are blurred and crooked. Consumers should identify whether there are printing, printing whether the printing is in compliance with the above provisions, and whether the printing is clear, etc. to determine the authenticity of gold jewelry.
1. Gold is "seven greens, eight yellows, nine purple ten red". It means that the blue gold contains 70%, the yellow contains 80%, the purple is 90%gold, and the red is almost 100%gold.
2. Sound identification method. Let the jewelry fall into the hard place, the sound is dull, and the explanation is good; the sound is crisp and the color difference is different.
3. Bend identification method. Twitte -folding utensils, the real gold is soft, easy to bend and not easy to break.
4. Trail identification method. With a hard needle tip on the surface of the real gold, there are obvious traces, and the false traces are blurred.
5. Demonstration of weight. Gold is the largest proportion of the material, and its proportion is 19:37. Bonard and red copper of the same weight are much larger than the same weight gold and red gold. You can know.
6. Fire burning identification method. True gold jewelry can not change color with fire, but it is not resistant to fake. After burning, it will turn dark brown, and it will lose light. Good luck!
Pay content for time limit to check for freenAnswer Hello, how do you use your mobile phone to distinguish the authentic gold ring? 1. Inquiry on the mobile phone book, you can check the encoding. When buying a gold ring, the merchant usually comes with a certificate with all the information of the gold ring on it to Baidu on its own. There are no such fake gold rings, or the information searched is not right. 2. The hardness mobile phone can see the hardness. Use the mobile phone to draw one force on the surface of the gold ring. After the real gold ring is engraved by the mobile phone, a deeper mark will appear on the surface. The marks on the surface of the fake gold rings are relatively light, and there are even no imprint. 3. Lighting mobile phones can see the lights. With the help of mobile phone lights to view the surface color of the gold ring, the surface of the real gold ring is golden yellow, and the color is well -colored. The color of the fake gold ring is a little pale, and it is faintly gray or green.nIf you answer your help, please help give a praise ~ In addition, you can click my avatar to follow me. In this way, you can ask me to consult me directly. Thank you for your support and look forward to you with you Meet again
1. Look at the color. The higher the purity of the gold jewelry, the darker the color. If there is no gold medal, you can determine the general color according to the following color (based on the golden gold. The so -called green gold is only the silver component in the gold); The pale yellow is 80 ~ 85%, the cyan is 65 ~ 70%, the color is only 50 ~ 60%white light, and the slightly yellow is less than 50%white.
2. 掂 weight. The density of gold is 19.32, which is higher than ordinary metal, so the gold will be heavier at the same volume. 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.
3. Listen to the sound. The real gold with more than 99%of the real gold is thrown on the hard ground, and it will make a 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.
4. Testing hardness. Pure gold is soft and low, and shallow marks can be used to use nails. Teeth bite can leave tooth marks. High -colored gold jewelry is lower than the soft color. Jin is soft, easy to bend, the lower the purity, the less likely to bend.
5. Burning with fire. Use the fire to burn red (do not melt the jewelry), and observe the color change after cooling. If the surface is still the original golden color, it is pure gold; Generally, the lower the color, the stronger the color, and the darkens are all, indicating that it is a fake gold jewelry.
6. See the mark. Domestic gold jewelry is allicized and prepared according to international standards, and the killing records, such as "24K" indicate "foot red" or "foot gold"; 18K gold, the word "18K", which is lower than LOK, according to regulations, according to regulations, according to regulations You can't play the K -printed number.
At present, criminals in the society are commonly used to make fake cards and imitation stamps, and use thin gold, Asian gold, and even brass to impersonate real gold. Therefore He is high and low.
Both. Buy gold to find the seller to identify the card, and then go to the bank to identify it. With the appraisal card, the bank does not accept the appraisal fee. Besides, no one dares to sell fake money