5 thoughts on “How to distinguish the authenticity of gold at home”

  1. 1. Look at the color: the higher the purity of the gold jewelry, the deeper the color. Dark red yellow color is above 95 %, light red yellow yellow 90-95 %, pale yellow is 80--85 %, blue yellow 65-70 %, color blue with white light is only 50-60 %, slightly yellow and white and white Less than 50 %.
    2, 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. Gold jewelry should have a feeling of sinking in his hands.

    3, see hardness: pure gold is soft and low, and shallow marks can be used to use nails. Teeth bite can leave dental marks. High -quality gold jewelry is low in color. 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 more than 99 % to throw 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 with fire, and the color changes are observed after cooling. 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.

    The expansion information:
    It pure gold has gorgeous yellow, but after incorporating other metals The silver alloy is light yellow or gray -white. Jin Yi was grinded into powder, which is why Jin is scattered in nature. Pure gold jewelry is also easily worn and reduced.
    Gold, as a precious metal, has good physical characteristics. "Real gold is not afraid of fire" means that the gold under the general flame is not easy to melt. The density is strong and the feel is heavy. Good toughness and ductility, good guidance.

    The color of gold is golden yellow, metal luster, difficult to break down. The hardness is 2-3, the pure gold is 19.3, and the melting point is 1064.4 ° C; it has good ductility and can be pressed into thin foil. It has extremely high heat transfer and conductivity. The resistance of pure gold is 2.4P.
    The pure gold in nature is very small, often including silver, copper, iron, 钯, 铋, platinum, nickel, 碲, selenium, 锇 and other accompanimental elements. Natural gold contains 15%of silver in silver More than 20%of copper are called copper gold ore, with 5-11%of 钯 钯 钯 钯 钯 矿 矿 钯 钯 铋 铋 铋 铋 铋 铋 矿 矿 矿 铋 铋 铋 铋 矿 矿 矿 矿 矿 矿 矿.
    Reference materials: Baidu Encyclopedia-Gold

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  3. Pay content for time limit to check for freenAnswer you, good dear, you can use fire at home to identify the authenticity of gold. First prepare a candle, lit the candle with a lighter, and then clamp the gold with the crickets to burn it on the candle until the surface of the gold is black. Put the black gold in the cold water for cooling. Looking at the color of gold, if the gold is found to return to the golden yellow, it means real gold, because real gold is not afraid of fire refining. If it is fake gold, no matter how long it is cooled, it cannot be restored to the original color.

  4. Introduce 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) See the hardness: pure gold is soft and low. It can draw light marks with nails. The teeth can leave the dental mark. 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.

  5. Introduce 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.

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