How to distinguish the authenticity of gold without passing through the instrument

**Identification of jewelry.

Identification requires some experience. Here are just a few ways to identify them.

1) Look at the color: **The higher the purity of the jewelry, the darker the color. In the absence of a gold medal, the general fineness can be determined according to the following colors (based on lapis and gold.

The so-called lapis gold is only contained); The color of dark red yellow is above 95, light red yellow is 90--95, light yellow is 80--85, blue-yellow is 65-70, the color blue with white light is only 50--60, and the yellowish and white is less than 50. The commonly said seven green, eight yellow, and nine red can be used as a reference. (2) Weight:

** The specific gravity is 19 32, which is heavier than silver, copper, lead, zinc, aluminum and other metals. Like the volume of **heavier than ** more than 40, heavier than copper 1 2 times, heavier than aluminum 6 1 times. **Jewelry should have a sense of sinking in the hand, and fake gold jewelry feels light.

This method does not apply to ** jewelry inlaid with gemstones.

3) Look at the hardness: pure gold is soft, low hardness, shallow marks can be scratched with nails, teeth can leave tooth marks, ** jewelry with high fineness is softer than low fineness, the more copper content, the harder it is, the bending method can also test the hardness, pure gold is soft, easy to bend, the lower the purity, the less easy to bend.

4) Listen to the sound: real gold with a fineness of more than 99 is thrown on the hard ground, which will make a horn sound, with no rhyme and no elasticity. Fake or low-color** sound is brittle and no dullness, generally makes a "dangdang" sound, and the sound has an aftersound, and beats violently after landing.

5) Burn with fire: burn the jewelry to be identified with fire (do not melt and deform the jewelry), observe the color change after cooling, if the surface is still the original ** color is pure gold; If the color is darkened or darkened to varying degrees, it is not pure gold. Generally, the lower the fineness, the stronger the color, and all of them turn black, indicating that it is fake gold jewelry.

6) Look at the mark: domestic ** jewelry are purified and prepared according to international standards, and marked with a killing mark, such as "24k" marked with "foot red" or "pure gold"; 18K gold, marked with the word "18k", the fineness is lower than LOK, according to the regulations, you can't play K gold stamp. At present, criminals in the society often use fake brands, imitation stamps, and use rare gold, sub-gold, and even brass to pass off as real gold, so the identification of ** jewelry should be determined according to the sample for comprehensive judgment to determine the authenticity and fineness.

Hello dear, to detect the authenticity of **, you can use the following methods:1Looking at the appearance, the real ones usually have a bright and consistent golden yellow color, and different purities and alloy ratios may have different colors.

Genuine** in light will shoot lead with a soft sheen, while inferior ** may have a dull appearance. 2.**Usually not magnetic, you can judge the authenticity of ** through magnetic testing.

Hold a strong magnet close to it, if it is attracted or caught by the magnet, it may be a counterfeit or doped with other metals. 3.**Has a higher density and is generally heavier than other metals.

Density testing can determine the purity of **. This test involves the use of a specialized instrument called a density meter, which measures the density of a sample to determine its purity. Items with normal density may be ** or other metals of similar density.

4.Acid testing is a common method that can be used to detect the authenticity of **. This test involves exposing a small piece of an unknown metal to different concentrations of an acid in order to observe its reaction.

The real ** is not attacked by most acids, while most counterfeit metals such as copper or gold plating react. This kind of testing requires experience and caution and should be performed in a suitable environment. 5.

If you still have doubts about the authenticity of **, give the **sample to a trusted jeweler or gold jewelry store to help test it. Moriga rent.

The metal detector is a detector used to detect metal content, which can accurately measure the composition of **, so as to judge the authenticity of wide eggplant**. 2.Magnetic Detection:

Magnetic scrutiny detection can detect the magnetism of **, the real ** will not be attracted by the magnet, if ** is attracted by the magnet, it means that ** is false. 3.By specific gravity detection:

The specific gravity of the real ** is, if the specific gravity is lower, it means that the ** is false. 4.Tested by pickling:

Put ** in an acidic solution, the real ** will not be corroded, and if it is corroded, it means that ** is fake. Hope mine can help you!

Summary. Pro, to detect the authenticity of **, you can take the following methods:1

Observe the appearance: Genuine ** usually has a distinctive yellow sheen, while fake ** may have a different color or shine. The real ** is also heavier, so if an object looks large but light, it may be fake.

2.Use magnetic testing: ** is non-magnetic, so you can use magnetic testing to rule out fake gold.

Bring a magnet close to **, if ** is attracted or affected by magnetism, it may be fake. 3.Density:

The density of ** is relatively high, and the density test can be used to detect the authenticity of **. This test requires the use of special tools, such as density meters. 4.

Chemical tests: Chemical tests can be performed using acidic solutions. The real ** will not be corroded by acidic solutions, while fake gold may be affected.

Pro, to detect the authenticity of **, you can take the following methods:1Observe the appearance:

Genuine ones usually have a distinctive yellow sheen, while fake ones may have a different color or sheen. The ** of the real yard mountain is also relatively late to medium-heavy, so if an object looks large but light, it may be fake. 2.

Use magnetic testing: ** is non-magnetic, so magnetic testing can be used to rule out counterfeit gold matching. Bring a magnet close to **, if ** is attracted or affected by magnetism, it may be fake.

3.Density: The density of ** is relatively high, and the density test can be used to detect the authenticity of **.

This test requires the use of special tools, such as density meters. 4.Chemical Tests:

Chemical tests can be performed using acidic solutions. The real ** will not be corroded by acidic solutions, while fake gold may be affected.

However, it is still recommended that you seek professional testing: if you have doubts about the authenticity of **, it is best to seek professional testing. It can be sent to a regular jewelry store, gold jewelry store or a professional testing agency for testing.

It should be noted that the above methods are for reference only, and the most accurate way is to test through a professional testing institution. If you need to ensure that the acorn is as authentic as Zen, it is recommended to consult a professional or institution to test the residual dust.

Hello, I am happy to serve you and give you the following answers: There are many methods to test the authenticity of Fang Shenling, the most commonly used of which are: 1

Colorimetry: The color of the face is dark gold, and the color of the false color is often pale gold, or silver, so you can judge whether it is true by observing the color of the ** with the naked eye**. 2.

Specific gravity method: The density of ** is higher than that of other metals, so it can be judged by comparing the weight whether it is true**. 3.

Chemical analysis: The composition of ** can be judged through chemical analysis, so as to judge whether it is true**. 4.

Resistance test method: You can judge whether it is true by measuring the resistance of **. Ray diffraction method:

The structure of ** can be judged by X-ray diffraction, so as to determine whether it is true**. Personal tip: When buying, you should carefully check the quality of the purchase to ensure that you are buying the real thing.

In addition, you should try to choose a regular merchant to buy** to avoid buying fake**.

Hello, I am happy to serve you and give you the following answers: There are many ways to test the authenticity of **, the most commonly used of which are: 1

Colorimetry: The color of ** is dark yellow, and the color of false ** is often light yellow, or light yellow, or gray, or green, or purple, or red, or blue, or black. Therefore, it is possible to judge the authenticity of ** by comparing the color group accompaniment.

2.Refractive index method: ** of the refractive index is, while the false ** refractive index is often or lower.

Therefore, the refractive index can be measured to determine the authenticity of **. 3.Magnetic method:

is non-magnetic, while false tends to be magnetic. Therefore, the authenticity of ** can be judged by measuring the magnetism. 4.

Density method: The density of the collapse stupid is, and the density of the false is often lower than that. Therefore, the authenticity of ** can be judged by measuring the density.

5.Chemical analysis: The chemical composition of ** is Au, and the chemical composition of false ** is often other elements other than Au.

Therefore, the authenticity of ** can be judged by chemical analysis. The above is the method of testing the authenticity of **, when using these methods, we should pay attention to careful inspection, so as not to make wrong judgments. In addition, you can also go to a professional appraisal agency for identification to ensure the authenticity of the rolling imitation.

Summary. Pro-inspection ** authenticity: visual inspection: 1. Check the lettering of **. It is generally engraved with AU999 or pure gold 9992, looking for obvious discoloration. Look carefully at the edge of the product, if it is another color, then the gold may be gilded.

It's true or false.

Pro-inspection ** authenticity: visual inspection: 1. Check the lettering of **.

It is generally engraved with AU999 or pure gold 9992, looking for obvious discoloration. Look carefully at the edge of the ** product If the lack of a suffocation is another color, then the gold may be gilded.

Is this gold-plated? How much is the gold-plated this**.

There is also an inspection: the gold sold in the regular **store has bills, **gram weight, purity, **information are all on the bills.

There is also a high density, good ductility, usually when striking the high color of the ** jewelry, it will make a dull sound of answering the sail. If it is thrown or thrown on hard ground, it has no sound and no elasticity. On the contrary, the lower the color, the louder the sound and the more elastic the hail.

The above is the most basic ** test method, oh dear.

Pro: The 24k gold-plated gold layer is **** today, about yuan per gram, oh dear.

You can refer to the <> of Oh Pro

I wish you a happy Chinese New Year, a lot of money in 2023, good health, and all the <>best

You just see which gold this is? Or fake.

I have to see the real thing to know <>

Because to judge from all sides.

I put it in the water and sank it, and it didn't have much elasticity, but it would leak silver out of the water and it would be gone.

**It will sink in the water, but its color is generally golden yellow, metallic luster, and it is difficult to decompose Oh pro 3

You said that you will show silver in the water, maybe it is not very pure, dear.

Could it be gold-plating? Or could it be fake?

Yes, pro 3

You don't have to worry too much, the poor type of pro-hypocrisy frankly guesses, like there will be some **** stores in every place to go directly to them and tell them what I want to change, people will know it at a glance, and then give you a burn, all of which are clear [in the smile letter].

1. Color identification:

**Can be distinguished by color, different colors** color is also different. When gold is reddish-yellow or yellow-red, the gold content can generally reach 90%. to 95% **, while yellow gold content is generally above 80%, while turquoise is around 70%.

2.Sound Discrimination:

**Can be identified by sound. **There will be a dull and muffled sound when hitting and throwing, and it will be less elastic. If it's flexible, make it. If the voice is long and high-pitched, accompanied by a sonorous sound, it is fake gold.

3.Hardness identification:

**Can be distinguished by its hardness. Generally, the hardness of ** is relatively low. Scratching with a pin or fingernail cap may produce scratches. And**There will be folds when bending, which are generally fish scales, and if there is none, it is fake**.

One of the most valuable and sought-after metals in the world, there is a wide variety of jewelry, and many jewelers make a variety of jewelry that will make an impression. But the problem is that there are always some criminals who are making fake ** jewelry, and some of them can even be fake. This results in a lot of people not being able to identify them properly.

They may be made into bracelets, necklaces, or even some kind of jewelry. Jewelers usually make certain markings on it so that they can discern it with a magnifying glass.

So, as ordinary people, do we have some way to distinguish them? The answer is yes. There are some scientific ways we can detect and identify them.

This time, we have sorted out 6 tips that teach you how to identify the real from the fake.

01. Floating test.

Prepare a tall glass, fill it with water, and you're ready to start testing. Throw the metal into it, and the solid gold jewelry will quickly sink to the bottom. Imitation gold and other metals may float above the bottom or even completely above the water.

In addition, real gold does not rust or discolor when wet.

2. Magnet test.

The easiest test is to use magnets, real gold can never attract magnets. The magnet is easy to carry, you can feel free to carry it in your pocket, and it is easy to test. There are quite a few imitation gold and other alloys that attract magnets.

So, just get close to them with a magnet and see if they will be attracted by the magnet to tell if it's real or fake.

0. **Test.

We can even test it with **. People who have worn fake jewelry may have encountered cases where it causes discoloration, but you can also try to test its authenticity directly. Just hold the metal in your hand for a few minutes, and it's best to do so in hot weather.

Wait for your ** to sweat, and after the sweat reacts to it, observe the same changes. If it is fake, it may be discolored and may be black or green. And the real ones don't make a difference.

4. Vinegar test.

The white vinegar that is very common at home can also be used to detect the authenticity of **, but it is best to operate it with a dropper. You can start by inhaling some white vinegar with a dropper and dripping it on the **. Or place the metal on a flat surface with paper towels and a few drops of white vinegar on top of the **.

If you notice that it has changed color, it is fake. Usually, it will not change color because of this.

5. Acid test.

If you have liquid nitric acid in your home, you can also try it for testing. And it works for most ***. At the time of testing, use a dropper to drop a drop on top of the metal to see if there is a reaction on it, and the fake gold will immediately turn green where the acid appears.

The ** on sterling silver will turn milky white. Gold does not react with nitric acid, and the result is only a drop of clear liquid that does not change color.

6. Ceramic test.

Prepare a ceramic plate that has not yet been glazed, and then put the metal on it to apply a little pressure to see if gold will appear on the ceramic, some cases are true, if black appears, it is fake.