5 thoughts on “How to distinguish between true and false gold?”
Alonzo
There are six methods to distinguish: . Visual inspection 1, the official logo of the golden 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 in 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.
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
Pay content for time limit to check for freenGood night! I picked up a gold and wanted to distinguish between true and false, the proportion of gold, but soft, and traces of bite with teeth.nYou can post a picture to seenPoor copper and lead in injectionnLooking at the things in your hand, 80%are not gold 80. Try it with your teeth, it is easy to leave a marknIf it is gold, it will be worth 5,000 yuann4 morenBleak
If you just see gold, it is simple! Looking at the proportion, general gold is more soft than other metals. It is very soft. Do n’t you bite with your teeth before! Ha ha!
It if you look at the purity, go to the test department, just!
Pay content for time limit to check for freenAnswer our daily use of authenticity of gold and falseness. There are about the following four: 1. Viewing color gold is seven green eight yellow nine purple ten red. It means that the golden yellow gold content is 70%, the yellow gold contains 80%, the purple yellow gold contains 90%, and the red yellow contains almost 100%. 2. Seeing the proportion of gold is the largest proportion of the material, and its proportion is 19.37, and the same weight of brass; the volume of the red copper is much larger than the gold of the same weight. Those who have experience, look at the color, weigh the weight, and know one or two. 3. The hardness of the hardness redness is the smallest. You can bite the marks with your teeth. 4. The fire burning the real gold is not afraid of the fire, burned in the flame, and it is still glittering. The other metals will be oxidized and discolored as soon as it burns.
There are six methods to distinguish:
. Visual inspection
1, the official logo of the golden 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 in 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.
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
Pay content for time limit to check for freenGood night! I picked up a gold and wanted to distinguish between true and false, the proportion of gold, but soft, and traces of bite with teeth.nYou can post a picture to seenPoor copper and lead in injectionnLooking at the things in your hand, 80%are not gold 80. Try it with your teeth, it is easy to leave a marknIf it is gold, it will be worth 5,000 yuann4 morenBleak
If you just see gold, it is simple! Looking at the proportion, general gold is more soft than other metals. It is very soft. Do n’t you bite with your teeth before! Ha ha!
It if you look at the purity, go to the test department, just!
Pay content for time limit to check for freenAnswer our daily use of authenticity of gold and falseness. There are about the following four: 1. Viewing color gold is seven green eight yellow nine purple ten red. It means that the golden yellow gold content is 70%, the yellow gold contains 80%, the purple yellow gold contains 90%, and the red yellow contains almost 100%. 2. Seeing the proportion of gold is the largest proportion of the material, and its proportion is 19.37, and the same weight of brass; the volume of the red copper is much larger than the gold of the same weight. Those who have experience, look at the color, weigh the weight, and know one or two. 3. The hardness of the hardness redness is the smallest. You can bite the marks with your teeth. 4. The fire burning the real gold is not afraid of the fire, burned in the flame, and it is still glittering. The other metals will be oxidized and discolored as soon as it burns.