Syphier's golden and false disagreement method: (1) Test weight, the golden proportion is 19.3, which is more important than metal such as silver, copper, lead, zinc, aluminum, etc. Compared with aluminum, gold is 40%heavier than silver, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. Trying it on the palm of your hand will feel that gold is heavy. If you have a sense of light floating, you should attract attention. (2) Visually inspecting color, golden luster with golden eyes, the higher the color, the more beautiful the color. As the saying goes, "Qiqing, Eight Yellow, Nine Five Five Red" It will be sad. (3) Check the hardness. The texture of the gold itself is soft, the gold jewelry is soft, and the color is low in color and the copper is harder. Therefore, how is the hardness of the bending? (4) Check the rhyme, and fall the gold jewelry from about one foot away from the desktop naturally. Large, that is, there are more metals such as copper in gold, and the color is not good. (5) The fire burning method, the gold resistance high temperature, the melting point is 1063.43C, so the saying goes "real gold is not afraid of fire refining". The jewelry is burned on the charcoal. After the cooling is cooled, the surface of the jewelry is still yellow, and it is real gold. If it becomes black, it is fake gold.
Syphier's golden and false disagreement method:
(1) Test weight, the golden proportion is 19.3, which is more important than metal such as silver, copper, lead, zinc, aluminum, etc. Compared with aluminum, gold is 40%heavier than silver, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. Trying it on the palm of your hand will feel that gold is heavy. If you have a sense of light floating, you should attract attention.
(2) Visually inspecting color, golden luster with golden eyes, the higher the color, the more beautiful the color. As the saying goes, "Qiqing, Eight Yellow, Nine Five Five Red" It will be sad.
(3) Check the hardness. The texture of the gold itself is soft, the gold jewelry is soft, and the color is low in color and the copper is harder. Therefore, how is the hardness of the bending?
(4) Check the rhyme, and fall the gold jewelry from about one foot away from the desktop naturally. Large, that is, there are more metals such as copper in gold, and the color is not good.
(5) The fire burning method, the gold resistance high temperature, the melting point is 1063.43C, so the saying goes "real gold is not afraid of fire refining". The jewelry is burned on the charcoal. After the cooling is cooled, the surface of the jewelry is still yellow, and it is real gold. If it becomes black, it is fake gold.