2 thoughts on “How to identify the purity of gold with the naked eye?”
Carroll
Eye viewing method
(1) Clarify the manufacturer and the color: The surface layer of the gold jewelry should print the manufacturer and alloy purity (color), and the words should be clear. If there is no mark on the jewelry, or the mark is blurred, it should be suspected of the authenticity of the gold jewelry. rn(2)检查颜色及变化：rn黄金应有耀眼的赤黄色，它的光泽和颜色是经久不衰的，成色越高，颜色越美，所以人们常说“七青、 Eight Yellow, Nine Five -Year Age ". The so -called gold jewelry referred to as other multi -metals can be recognized from color. u003C3> Ear -hearing The composition of sound debate. Put the jewelry from the height of nature. If only the sound of "tab" is made, and there is no rhyme and no elasticity, it is the gold of the purity of 990 ‰. If the sound of sinking rhyme has a long elasticity, it means that it is not high, and the jewelry contains more copper and other metal components. u003C4> Hand Mym 掂 is more weight. The proportion of gold is 19.3, which is higher than silver, copper, aluminum, tin and other metals. The same volume of gold is 40%heavier than silver, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. By comparative weight, you can also identify whether it is faked with other metal gold jewelry. The easiest way is to know the weight with your hands to know true and false. As the saying goes, gold is "pressed" because the same volume of gold is much heavier than other metals such as copper and aluminum. u003C5> Teeth biting method tooth biting real gold. Gold hardness is low, soft, and bite with teeth, there will be traces, and other metals do not have this feature. Moreover, the higher the color of the gold jewelry, the softer it is, and it can also check the level of the color through a bend method. If the color is low, there are more silver and copper components, so it is not easy to bend. With this method, you can recognize whether the gold jewelry is charged. u003C6> tongue licking method Put the gold jewelry in your mouth and lick with your tongue for a while, and then smoke. If there is no odor, it is gold; if there is a sweet silk taste, it means that it is copper.
Eye viewing method
(1) Clarify the manufacturer and the color:
The surface layer of the gold jewelry should print the manufacturer and alloy purity (color), and the words should be clear. If there is no mark on the jewelry, or the mark is blurred, it should be suspected of the authenticity of the gold jewelry. rn(2)检查颜色及变化：rn黄金应有耀眼的赤黄色，它的光泽和颜色是经久不衰的，成色越高，颜色越美，所以人们常说“七青、 Eight Yellow, Nine Five -Year Age ". The so -called gold jewelry referred to as other multi -metals can be recognized from color.
u003C3> Ear -hearing
The composition of sound debate. Put the jewelry from the height of nature. If only the sound of "tab" is made, and there is no rhyme and no elasticity, it is the gold of the purity of 990 ‰. If the sound of sinking rhyme has a long elasticity, it means that it is not high, and the jewelry contains more copper and other metal components.
u003C4> Hand
Mym 掂 is more weight. The proportion of gold is 19.3, which is higher than silver, copper, aluminum, tin and other metals. The same volume of gold is 40%heavier than silver, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. By comparative weight, you can also identify whether it is faked with other metal gold jewelry. The easiest way is to know the weight with your hands to know true and false. As the saying goes, gold is "pressed" because the same volume of gold is much heavier than other metals such as copper and aluminum.
u003C5> Teeth biting method
tooth biting real gold. Gold hardness is low, soft, and bite with teeth, there will be traces, and other metals do not have this feature. Moreover, the higher the color of the gold jewelry, the softer it is, and it can also check the level of the color through a bend method. If the color is low, there are more silver and copper components, so it is not easy to bend. With this method, you can recognize whether the gold jewelry is charged.
u003C6> tongue licking method
Put the gold jewelry in your mouth and lick with your tongue for a while, and then smoke. If there is no odor, it is gold; if there is a sweet silk taste, it means that it is copper.
I can't see it, I have to do experiments ...