1. Observe whether the gold has a white highlight, cut the gold bar or gold jewelry with ingredients, and observe the cut surface with a magnifying glass. If there is a white highlight, because the gold and the cricket cannot be fused together, it means that the gold is mixed with a pupa. rn2、听声音，成色高的黄金首饰受敲击或往硬地抛掷时，发出“噗嗒、噗嗒”的沉闷低声，有声无韵也无弹力，K金有音韵、有声、 There is elasticity, the greater the elasticity, the more the rhyme, the more the elders, the worse the color. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds. 3, first measure the weight of a pure gold bars with an balance, and then put the gold bars into a measuring cup and flood the gold bars. Then put the detected gold bars in a measuring cup, whether the scale of the water rises or decreases. As long as it changes, it means that the gold bar is not pure gold. But if it is gold jewelry, this method is not applicable because there is air in gold jewelry. 4. Put the golden bars or gold jewelry on the fire for a while to observe its changes. Because the oxidation reaction occurs with oxygen in the air, the gold bars with insufficient purity will become gray; and the color of the pure gold will be red after the fire is baked. However, this method may be destroyed to jewelry. Extension information:
although gold is a very soft metal, it is not as good as lead and tin metal. Use nails on pure gold to draw traces. This softness makes gold very easy to process. However, this point is not ideal for the maker of the decoration, because it is easy to make the decorations hurt and make it make it make it wound and make it it. Lost luster and even affect beauty. Therefore, when making jewelry with gold, copper and silver are generally added to improve their hardness. It gold is forged and easy to extend, which can be crushed to a transparent and transparent green foil with a thickness of 0.001 mm. 0.5 grams of gold can be pulled into a 160 -meter -long golden.
There are many appraisal methods for gold jewelry, including color, weight, weight, listening sound, folding hardness, stone grinding, contrast cards, sour points, and fixed color. The first four sentences depends on the eyes and the feeling; the latter four sentences need to be used by tools and reagents. There are also common methods -burning with fire. —— "Quotation from the Internet"
. Inspectimal gold gold as a collection of valuable investment products, which has a general nature in the world. The same gold is in the world. There are also many fakes circulating on the market. If you want to check the authenticity of the environment, you can first check whether the official nature has a specific logo. If it is lower than 10K, it proves that the gold content is too low. It is best to observe with a magnifying glass when checking it to see more detailed. But if the gold jewelry is relatively long, then there will be no official purity logo. Although some counterfeit products have signs, they must be checked from the identification certificate. If there is obvious discoloration or the golden color disappears, this shows that it is just a gold -plated product.
. The golden can be identified by chemical testing and magnet testing. , Filter paper becomes gray -purple, and then add special reagents. If the filter paper becomes white, this means that it is real gold. But if there is no discoloration, it proves that this is a fake. You can also use magnets for testing. If this product is attracted by magnets, it proves that this is a fake, because gold does not contain magnetic.
. Test gold through bite In the film will find that some people like to identify golden knowledge and like to bite with their mouths and take a bite of gold. Essence
Pay content for time limit to check for freenAnswer Hello, kiss, first of all, I wish you a happy new year. I am glad to answer your questions. I summarized the fastest land method for identifying gold. Method 1: Weighing it by hand, gold is more than doubled than the same volume of silver, and the real gold is in the hand, and there is a feeling of falling, while copper or other substances only have a sense of heavyness and no fall. Method 2: Look at the color of gold, according to the different light and color of gold, you can identify the authenticity of gold. The real gold is mainly yellowish, yellow -red, and the color is basically 95 %. Method 3: Listen to the sound. The high -quality gold jewelry, when it is hit, or when it is thrown out, emit a dull sound of "dwelling, dwelling", no rhyme or pressure, the more elastic, the more sharp and the rhyme will be longer. Method 4: Fire burning method. The real gold jewelry is burned with fierce fire, which can durable and unchanged. Those who are fake will become dark brown, and they will also lose the glitter of gold.
There are many appraisal methods for gold jewelry, including color, weight, weight, listening sound, folding hardness, stone grinding, contrast cards, sour points, and fixed color. : Look at the color, according to the different gloss and color of the gold, you can generally distinguish between pure gold, K gold, real gold, fake gold. That is, gold is better yellow (yellow -red), and the color is more than 95%; the positive yellow color is about 80%; the blue and yellow color is about 70%; the yellow color is slightly gray and the color is about 50%. Therefore, there is a formula for "seven green eight yellow, yellow nine five red, yellow leucorrhea ash pairs of gold". For long -term gold jewelry, there will be a saying that "copper turns green, silver turns black, and gold will never change color". : Type weight, gold weighs more than double the same volume silver, lead, and tin. True gold has a feeling of falling on the hand, while copper or others only have a sense of heavyness without falling. : Listening to the sound, when the high -quality gold jewelry is knocked out or threw it hard, it emits a dull sound of "daedy, dwelling", no sound or elasticity, K gold has a rhyme, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound There are elasticity, the greater the elasticity, the more the rhyme, the more older, the worse the color. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds. : Folding hardness, high -colored gold, can leave traces with large head needles or nails. More than 97%of the gold jewelry, after two or three times, wrinkles appeared at the bend, also called fish scales; about 95%of gold jewelry, it feels hard when bending, and the fish scales are not obvious; The jewelry is very hard when the bending is bent, and there is no fish scale pattern; the gold jewelry containing more impurities, the bend is twice or three times to break; When using this method, the width and thickness of the jewelry should be considered. The thick and width should be hardened, and the thin and narrow ones are softer. Five: Use the test goldstone to identify the color, and use the determined gold and the subject's first jewelry to grind the road on the test gold stone. By comparing the color, the gold jewelry is determined. This method should be carried out under natural light and sunlight, and cannot be carried out under the direct sunlight and incandescent lamps. In the past, people used test stones to determine the general content of gold. The goldstone was a mixed black mineral such as quartz -containing quartz and menton stone. The gold was drawn on the testing stone to see the general shape of the gold. Pure gold: shiny dark yellow, thick yellow; silver -containing gold: light color transformed micro -band -inflammatory green; gold containing gold greater than 25%: earth white; copper gold: deeper color, red color tone; silver copper containing copper; Gold: yellow; gold containing zinc, same, nickel: white gold. : Use acid points to grind the golden -identified jewelry and contrast gold on the test stone. Try the nitric acid on the golden road with a glass stick. Essence If it is not gold or non -pure gold, the Golden Road disappears or changes. The law of changes is "three fast, three slows", that is, the low -quality disappearance is fast, and the high color disappears slowly; Depending on the disappearance of its golden road, the comparison of the comparison can determine the color of gold jewelry. Seven: Burning with fire, the jewelry is burned red (do not melt the jewelry) with fire (do not melt the jewelry). After cooling, observe the color change. 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. After burning red, it is quenched into the water, and the color remains unchanged. It really does not change color when it comes to fire.
The soil method for identifying gold is burning. Gold has real gold that is not afraid of fire. It is said that gold is burned with fire. After the burning, the surface of the gold is still golden yellow.
1. Observe whether the gold has a white highlight, cut the gold bar or gold jewelry with ingredients, and observe the cut surface with a magnifying glass. If there is a white highlight, because the gold and the cricket cannot be fused together, it means that the gold is mixed with a pupa. rn2、听声音，成色高的黄金首饰受敲击或往硬地抛掷时，发出“噗嗒、噗嗒”的沉闷低声，有声无韵也无弹力，K金有音韵、有声、 There is elasticity, the greater the elasticity, the more the rhyme, the more the elders, the worse the color. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds.
3, first measure the weight of a pure gold bars with an balance, and then put the gold bars into a measuring cup and flood the gold bars. Then put the detected gold bars in a measuring cup, whether the scale of the water rises or decreases. As long as it changes, it means that the gold bar is not pure gold. But if it is gold jewelry, this method is not applicable because there is air in gold jewelry.
4. Put the golden bars or gold jewelry on the fire for a while to observe its changes. Because the oxidation reaction occurs with oxygen in the air, the gold bars with insufficient purity will become gray; and the color of the pure gold will be red after the fire is baked. However, this method may be destroyed to jewelry.
Extension information:
although gold is a very soft metal, it is not as good as lead and tin metal. Use nails on pure gold to draw traces. This softness makes gold very easy to process. However, this point is not ideal for the maker of the decoration, because it is easy to make the decorations hurt and make it make it make it wound and make it it. Lost luster and even affect beauty. Therefore, when making jewelry with gold, copper and silver are generally added to improve their hardness.
It gold is forged and easy to extend, which can be crushed to a transparent and transparent green foil with a thickness of 0.001 mm. 0.5 grams of gold can be pulled into a 160 -meter -long golden.
There are many appraisal methods for gold jewelry, including color, weight, weight, listening sound, folding hardness, stone grinding, contrast cards, sour points, and fixed color. The first four sentences depends on the eyes and the feeling; the latter four sentences need to be used by tools and reagents. There are also common methods -burning with fire. —— "Quotation from the Internet"
. Inspectimal gold
gold as a collection of valuable investment products, which has a general nature in the world. The same gold is in the world. There are also many fakes circulating on the market. If you want to check the authenticity of the environment, you can first check whether the official nature has a specific logo. If it is lower than 10K, it proves that the gold content is too low. It is best to observe with a magnifying glass when checking it to see more detailed. But if the gold jewelry is relatively long, then there will be no official purity logo. Although some counterfeit products have signs, they must be checked from the identification certificate. If there is obvious discoloration or the golden color disappears, this shows that it is just a gold -plated product.
. The golden
can be identified by chemical testing and magnet testing. , Filter paper becomes gray -purple, and then add special reagents. If the filter paper becomes white, this means that it is real gold. But if there is no discoloration, it proves that this is a fake. You can also use magnets for testing. If this product is attracted by magnets, it proves that this is a fake, because gold does not contain magnetic.
. Test gold through bite
In the film will find that some people like to identify golden knowledge and like to bite with their mouths and take a bite of gold. Essence
Pay content for time limit to check for freenAnswer Hello, kiss, first of all, I wish you a happy new year. I am glad to answer your questions. I summarized the fastest land method for identifying gold. Method 1: Weighing it by hand, gold is more than doubled than the same volume of silver, and the real gold is in the hand, and there is a feeling of falling, while copper or other substances only have a sense of heavyness and no fall. Method 2: Look at the color of gold, according to the different light and color of gold, you can identify the authenticity of gold. The real gold is mainly yellowish, yellow -red, and the color is basically 95 %. Method 3: Listen to the sound. The high -quality gold jewelry, when it is hit, or when it is thrown out, emit a dull sound of "dwelling, dwelling", no rhyme or pressure, the more elastic, the more sharp and the rhyme will be longer. Method 4: Fire burning method. The real gold jewelry is burned with fierce fire, which can durable and unchanged. Those who are fake will become dark brown, and they will also lose the glitter of gold.
There are many appraisal methods for gold jewelry, including color, weight, weight, listening sound, folding hardness, stone grinding, contrast cards, sour points, and fixed color.
: Look at the color, according to the different gloss and color of the gold, you can generally distinguish between pure gold, K gold, real gold, fake gold. That is, gold is better yellow (yellow -red), and the color is more than 95%; the positive yellow color is about 80%; the blue and yellow color is about 70%; the yellow color is slightly gray and the color is about 50%. Therefore, there is a formula for "seven green eight yellow, yellow nine five red, yellow leucorrhea ash pairs of gold". For long -term gold jewelry, there will be a saying that "copper turns green, silver turns black, and gold will never change color".
: Type weight, gold weighs more than double the same volume silver, lead, and tin. True gold has a feeling of falling on the hand, while copper or others only have a sense of heavyness without falling.
: Listening to the sound, when the high -quality gold jewelry is knocked out or threw it hard, it emits a dull sound of "daedy, dwelling", no sound or elasticity, K gold has a rhyme, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound, sound There are elasticity, the greater the elasticity, the more the rhyme, the more older, the worse the color. The fake or low golden sound is crispy but no dullness. Generally, the sound of "Dangdang" is emitted, and there are surplus sounds.
: Folding hardness, high -colored gold, can leave traces with large head needles or nails. More than 97%of the gold jewelry, after two or three times, wrinkles appeared at the bend, also called fish scales; about 95%of gold jewelry, it feels hard when bending, and the fish scales are not obvious; The jewelry is very hard when the bending is bent, and there is no fish scale pattern; the gold jewelry containing more impurities, the bend is twice or three times to break; When using this method, the width and thickness of the jewelry should be considered. The thick and width should be hardened, and the thin and narrow ones are softer.
Five: Use the test goldstone to identify the color, and use the determined gold and the subject's first jewelry to grind the road on the test gold stone. By comparing the color, the gold jewelry is determined. This method should be carried out under natural light and sunlight, and cannot be carried out under the direct sunlight and incandescent lamps. In the past, people used test stones to determine the general content of gold. The goldstone was a mixed black mineral such as quartz -containing quartz and menton stone. The gold was drawn on the testing stone to see the general shape of the gold. Pure gold: shiny dark yellow, thick yellow; silver -containing gold: light color transformed micro -band -inflammatory green; gold containing gold greater than 25%: earth white; copper gold: deeper color, red color tone; silver copper containing copper; Gold: yellow; gold containing zinc, same, nickel: white gold.
: Use acid points to grind the golden -identified jewelry and contrast gold on the test stone. Try the nitric acid on the golden road with a glass stick. Essence If it is not gold or non -pure gold, the Golden Road disappears or changes. The law of changes is "three fast, three slows", that is, the low -quality disappearance is fast, and the high color disappears slowly; Depending on the disappearance of its golden road, the comparison of the comparison can determine the color of gold jewelry.
Seven: Burning with fire, the jewelry is burned red (do not melt the jewelry) with fire (do not melt the jewelry). After cooling, observe the color change. 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. After burning red, it is quenched into the water, and the color remains unchanged. It really does not change color when it comes to fire.
The soil method for identifying gold is burning. Gold has real gold that is not afraid of fire. It is said that gold is burned with fire. After the burning, the surface of the gold is still golden yellow.