4 thoughts on “Foot gold to identify authenticity and false methods”
Kellie
Differential gold requires some experience. Here are only some identification methods.
(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. Reference materials:/Quality/Jewel The back to maintain your silver jewelry
Now more and more young people are in love with silver jewelry, silver jewelry is fresh, unique in style, unique style, unique style The craftsmanship and low price, quickly swept the world in a short period of time, becoming the new pet of young people.
But the distressing is that the silver jewelry may have a black phenomenon after a period of time. Why? How should silver jewelry be maintained correctly?
Why do silver jewelry?
The chemical properties of silver are relatively stable and have strong corrosion resistance. However, sulfur, nitric acid and oxide in air and other natural media have a certain corrosion effect on silver. Silver jewelry has been worn for a long time, and sulfur and silver will form a layer of black sulfide film on the surface of the silver jewelry. At the beginning, it will be manifested as a small spots, and then spreads into pieces, forming people commonly referred to as silver scale and silver mold. It turns black, which seriously affects the color and luster of the surface of the silver jewelry.
Meority
According to the principle described above, pay attention to the following points in the process of wearing silver jewelry:
1. In front of silver, please apply a layer of colorless nail polish to make the surface luster lasting.
2. Silver jewelry should be avoided in hot springs or seawater areas. Silver jewelry contacts warm water or sulfide can easily change the surface.
3. When bathing and swimming, be sure to remove the silver decoration to avoid contact with chemicals such as bleaching powder.
4. When makeup, please try to avoid contact with cosmetics and perfume with silver.
5. During the wearing process, please try to avoid any other chemicals contacting silver ornaments to avoid chemical reactions.
6. After each wear, you can use cotton or noodle paper to gently wipe the surface, remove water and dirt, and then collect it in a sealing bag to avoid contact with the air
How to deal with how to deal with it Silver jewelry
In unfortunately your silver jewelry has been seriously discolored, please try to handle it as follows:
0. Black oxides.
1. You can try to apply a little toothpaste on the surface of the silver jewelry, and then scrub it with warm water with a toothbrush.
2. When the surface of the silver jewelry is slightly corrosive, it can be slightly discolored. You can use a detergent or a hot medium soap to gently wipe it.
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%. K gold jewelry is a jewelry made of other metals (such as silver, copper metal) to its golden materials, also known as "opening gold" and "color gold". Due to the number of other metals, different K numbers of K gold jewelry are formed. The size and gold content of the K number are as follows:
In gold jewelry, the pure gold jewelry texture is soft, the teeth are bite, and it is easy to bend. I feel heavy and feel heavy. 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 used "gold" and "KG" English letters represent the texture. 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 K gold jewelry marked "18K". %. 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 easily confused with gold jewelry, some are gold -plated jewelry, some are gold jewelry, some are copper jewelry, and some are copper alloy jewelry. Let's explain all the brief explanations:
The gold -plated jewelry is plated on the surface of other metal jewelry on the surface of the electroplating method. Essence 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 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.
The gold -plated jewelry, gold jewelry, or copper jewelry, and Asian gold jewelry, generally do not have a gold jewelry -like printing. Or it is different from gold jewelry. If some jewelry is engraved with the English letters "GK", it means "gold plating". 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.
Pay content for time limit to check for freenAnswer dear, hello! I have seen your question here and I am trying to organize the answer. I will answer it later. Please wait a minute ~nHello dear [Smile], the questions you ask. The related answers provided for you are as follows: 1. The first method is to carefully observe the pendant from the two perspectives. You will find that the colors on both sides are different, and the front is dark. The side is bright. 2. The second method is manual weighing. The weight of gold is about twice the metals such as silver and copper. If the shape of the gold pendant is very large, but it is called by hand, it will give people a light feeling, that is, some other metals may be mixed with it. At this time, you need to pay attention.nThousands of gold pendants refer to gold jewelry with a gold content of not less than 999. The mark is thousands of gold, 999 gold, GOLD999 or G999. The mark of the gold pendant includes the manufacturer's code, materials and purity, such as: X Gold 990, XAU990, X -foot gold, etc. Among them, letters X are the manufacturer code. When making precious metals with different materials or different purifications, materials and purity should be represented separately. When the pendant cannot be printed due to too thin or too small, it should be attached to the mark containing the mark content. Method of identifying thousands of gold pendants: The higher the purity of the golden jewelry of the golden color, 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); The pale yellow is 80 ~ 85%, the cyan is 65 ~ 70%, the color is only 50 ~ 60%white light, and the slightly yellow and white are less than 50%. The proportion of gold weight 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, 18K gold pendant, and fake gold jewelry feels light. This method is not suitable for gold jewelry inlaid. Look at the golden hardness of the gold and the low hardness, the hardness of the hardness, the shallow marks with the nails, the teeth can leave the dental marks, the golden island, the high -quality gold jewelry is lower than the soft color, the more copper, the harder, the bending method, the more bending method, and the bending method. It can also test hardness, pure gold is soft, easy to bend, the lower the purity, the less likely to bend. Gold jewelry analysis: Gold jewelry refers to jewelry made of gold as the main raw material. The chemical symbol of gold is AU, the proportion is 19.32, and the hardness of Moh is 2.5.n1 morenBleak
If it is purchased by a regular store, you can rest assured
If it is not sure, I suggest you go to a special institution to identify it. Because technologies such as fraud now are getting more and more clever, there are already metals that have the same gold proportion of gold. In the place where professional testing, it is necessary to cut the gold to test it to test whether it is really pure gold inside and outside. The detection surface is useless, some fake things, the surface is plated 24K gold
Differential gold requires some experience. Here are only some identification methods.
(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.
Reference materials:/Quality/Jewel
The back to maintain your silver jewelry
Now more and more young people are in love with silver jewelry, silver jewelry is fresh, unique in style, unique style, unique style The craftsmanship and low price, quickly swept the world in a short period of time, becoming the new pet of young people.
But the distressing is that the silver jewelry may have a black phenomenon after a period of time. Why? How should silver jewelry be maintained correctly?
Why do silver jewelry?
The chemical properties of silver are relatively stable and have strong corrosion resistance. However, sulfur, nitric acid and oxide in air and other natural media have a certain corrosion effect on silver. Silver jewelry has been worn for a long time, and sulfur and silver will form a layer of black sulfide film on the surface of the silver jewelry. At the beginning, it will be manifested as a small spots, and then spreads into pieces, forming people commonly referred to as silver scale and silver mold. It turns black, which seriously affects the color and luster of the surface of the silver jewelry.
Meority
According to the principle described above, pay attention to the following points in the process of wearing silver jewelry:
1. In front of silver, please apply a layer of colorless nail polish to make the surface luster lasting.
2. Silver jewelry should be avoided in hot springs or seawater areas. Silver jewelry contacts warm water or sulfide can easily change the surface.
3. When bathing and swimming, be sure to remove the silver decoration to avoid contact with chemicals such as bleaching powder.
4. When makeup, please try to avoid contact with cosmetics and perfume with silver.
5. During the wearing process, please try to avoid any other chemicals contacting silver ornaments to avoid chemical reactions.
6. After each wear, you can use cotton or noodle paper to gently wipe the surface, remove water and dirt, and then collect it in a sealing bag to avoid contact with the air
How to deal with how to deal with it Silver jewelry
In unfortunately your silver jewelry has been seriously discolored, please try to handle it as follows:
0. Black oxides.
1. You can try to apply a little toothpaste on the surface of the silver jewelry, and then scrub it with warm water with a toothbrush.
2. When the surface of the silver jewelry is slightly corrosive, it can be slightly discolored. You can use a detergent or a hot medium soap to gently wipe it.
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%. K gold jewelry is a jewelry made of other metals (such as silver, copper metal) to its golden materials, also known as "opening gold" and "color gold". Due to the number of other metals, different K numbers of K gold jewelry are formed. The size and gold content of the K number are as follows:
24K, 99%or more; 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, the pure gold jewelry texture is soft, the teeth are bite, and it is easy to bend. I feel heavy and feel heavy. 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 used "gold" and "KG" English letters represent the texture. 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 K gold jewelry marked "18K". %. 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 easily confused with gold jewelry, some are gold -plated jewelry, some are gold jewelry, some are copper jewelry, and some are copper alloy jewelry. Let's explain all the brief explanations:
The gold -plated jewelry is plated on the surface of other metal jewelry on the surface of the electroplating method. Essence 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 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.
The gold -plated jewelry, gold jewelry, or copper jewelry, and Asian gold jewelry, generally do not have a gold jewelry -like printing. Or it is different from gold jewelry. If some jewelry is engraved with the English letters "GK", it means "gold plating". 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.
Pay content for time limit to check for freenAnswer dear, hello! I have seen your question here and I am trying to organize the answer. I will answer it later. Please wait a minute ~nHello dear [Smile], the questions you ask. The related answers provided for you are as follows: 1. The first method is to carefully observe the pendant from the two perspectives. You will find that the colors on both sides are different, and the front is dark. The side is bright. 2. The second method is manual weighing. The weight of gold is about twice the metals such as silver and copper. If the shape of the gold pendant is very large, but it is called by hand, it will give people a light feeling, that is, some other metals may be mixed with it. At this time, you need to pay attention.nThousands of gold pendants refer to gold jewelry with a gold content of not less than 999. The mark is thousands of gold, 999 gold, GOLD999 or G999. The mark of the gold pendant includes the manufacturer's code, materials and purity, such as: X Gold 990, XAU990, X -foot gold, etc. Among them, letters X are the manufacturer code. When making precious metals with different materials or different purifications, materials and purity should be represented separately. When the pendant cannot be printed due to too thin or too small, it should be attached to the mark containing the mark content. Method of identifying thousands of gold pendants: The higher the purity of the golden jewelry of the golden color, 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); The pale yellow is 80 ~ 85%, the cyan is 65 ~ 70%, the color is only 50 ~ 60%white light, and the slightly yellow and white are less than 50%. The proportion of gold weight 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, 18K gold pendant, and fake gold jewelry feels light. This method is not suitable for gold jewelry inlaid. Look at the golden hardness of the gold and the low hardness, the hardness of the hardness, the shallow marks with the nails, the teeth can leave the dental marks, the golden island, the high -quality gold jewelry is lower than the soft color, the more copper, the harder, the bending method, the more bending method, and the bending method. It can also test hardness, pure gold is soft, easy to bend, the lower the purity, the less likely to bend. Gold jewelry analysis: Gold jewelry refers to jewelry made of gold as the main raw material. The chemical symbol of gold is AU, the proportion is 19.32, and the hardness of Moh is 2.5.n1 morenBleak
If it is purchased by a regular store, you can rest assured
If it is not sure, I suggest you go to a special institution to identify it. Because technologies such as fraud now are getting more and more clever, there are already metals that have the same gold proportion of gold. In the place where professional testing, it is necessary to cut the gold to test it to test whether it is really pure gold inside and outside. The detection surface is useless, some fake things, the surface is plated 24K gold