How to distinguish the authenticity of topaz from whether it is natural or not!

Question 1, how to distinguish the true and false topaz topaz is a general gemstone, its composition is fluorine-containing silicate, the hardness is 8, the relative hardness is high, similar to crystal, according to the classification strictly speaking, it is a semi-precious stone, the common colors are colorless, pink, yellow and blue, etc. Common gemstones that are easy to mix with topaz mainly include crystal, aquamarine, tourmaline and glass imitations, among which the most easily mixed is yellow crystal. In fact, apart from the fact that topaz is softer and has a slightly velvety appearance, it is extremely difficult to distinguish between the two to the naked eye, which is the fundamental reason why yellow crystal can lead to doubts about the value of yellow topaz in the market.

Distinguish between real and fake topaz and look at luster: whether real jade is translucent or opaque, it has a warm luster, and it is normal to have a small amount of impurities or cotton wool-like patterns inside; The color of fake jade is dry, gray and dull, and there are bubbles. Hardness:

Carved and scraped with a knife, the real jade leaves no traces. Specific gravity: real jade feels heavy, and fake jade is light.

Listen to the sound: hang the jade with a thread in the air, hit it with a hard object, the sound of the genuine product is crisp and pleasant, and the aftertaste is melodious; The fake ones are relatively dull and dry. Look at the break:

Observed with a 10x magnifying glass, the fractures of the real jade are uneven, and a relatively fine structure can be seen; The fracture of the fake jade is neat and shiny, and it is often a glass imitation, and the fracture structure is rough and there is no waxy luster. If you don't invite experts, first-time jade players should identify the authenticity of jade by themselves, which can be observed from three aspects: 1. Because the glass texture is very brittle and hard, the structure is arranged and dredged, and the density and toughness of jade are lacking, and it cannot withstand strong high-speed rotary carving, so it is generally not processed on the glass with high relief and round carving.

Second, use a magnifying glass to find bubbles, even if you can only see one, you can confirm that it is not jade. 3. Chromium oxide is added to the glass, and the color is close to ruby; Cobalt oxide is added, and the color is nearly sapphire; Chromium oxide and copper oxide are added to give the color to the ...... of emeraldsAnd so on, and so on, and there are many kinds of fake jade. However, their tones always appear thin, lacking the oily and rich feeling of natural jade.

Look, mainly look at the crystal transparency, the real jade has strong transparency, and the grease is luster; Listen, Zhenyu's voice is crisp, on the contrary, the voice is hoarse; In the test, the real jade was scratched through the glass, leaving scratches on the glass, while the jade itself was not damaged in the slightest. Common fake jade includes plastic, colored glass, marble (marble), electric fake jade, jade made of jade powder and crystal and salt water, and jade imitated by glass, etc., and the means of identification are also different. The texture of plastic is lighter than jade, the hardness is poor, and it is generally easy to identify.

Coloring off-duty is also easy to distinguish. As long as you take it to the light or check it in the sun, you will see that there are many bubbles in the glass. Question 2:

How to distinguish natural topaz Pure natural topaz material, there is a natural jade texture, and because of the different minerals it contains, the color may be slightly different, and it does not belong to the range of defects, which is the most effective substance of natural topaz.

Method of identifying jade A Look at the color.

Formula: "The color type is not correct, the color floats without roots".

The color is evil, foil! This is mainly reflected in the green, and many C, B+C are mainly dyed green. There are also other colors, which give people the feeling that they are not right and evil!

If you don't look at the outstanding root, flash! The main manifestation is that the color floats on the surface, there is no transition from the inside to the surface, or the excess is not obvious.

b Look at the surface.

Tips: Orange peel and acid cracks.

Tips: Pick up the bracelet, under the light (any light will do), adjust the position of the bracelet, catch the reflective points on the surface of the bracelet, and see if there are pits and acid cracks on the surface with the naked eye. Be careful not to take out the magnifying glass, you will be laughed at by the connoisseurs!

c Look at the germplasm.

Formula: "germplasm does not match".

This is mainly for some jadeite, its particles are very coarse, but on the whole, it gives people a feeling of a very long water head, this phenomenon should not be the phenomenon of natural jadeite. (Except, of course, some jadeite that has recrystallization) Novices flash when they see this kind of thing! Veterans will judge by other means.

d Look at the texture.

Method: Pick up the bracelet and face it at the light, noting that this should be transmitted light, (the third point above is not using transmitted light). If, the texture inside is messy, serious like a mesh and tree roots, novice, flash! Veteran, be careful!

e Listen to the sound.

Steps:1Prepare an agate stick, a rope. (General merchants have it, you must ask him if you want it, don't care about face).

Hang the bracelet with a rope and be careful not to hold it with your hands!!

Gently tap the bracelet with an agate stick, (note, the agate stick prevails!) Coins, keys, other dds, are all inaccurate! ）

Sound: The sound of a cargo is clear and melodious, as beautiful as the sound of wind chimes!

B goods, refers to jadeite that has only been washed on the ground. The voice, dull, hoarse. Some slightly pickled dd, the sound is also clear, but short, and there will be no melodious echo!

c, voice, dull, hoarse. It's like the sound of two keys tapping each other.

Jade can not only beautify people's lives, cultivate temperament, but also dispel diseases and keep them safe. Its products are directly used for fitness and health care: jade pillows, jade pads, fitness balls, massagers, walking sticks, jade combs, which have the effect of nourishing the skin, calming and calming the nerves.

Jade is expensive, the selection technology is very demanding, the vast majority of consumers are difficult to distinguish its advantages and disadvantages, true and fake, a little careless is easy to buy inferior products or fakes, suffer major economic losses. There are many jade shops selling in the market, and jade is generally divided into two categories: nephrite and jadeite. Jadeite is also called jadeite.

In terms of chemical composition, nephrite is a silicate containing calcium, magnesium and iron; Jadeite is a silicate containing sodium and aluminum. Common ways to distinguish are:

1.Water identification method A drop of water is dropped on the jade, such as a dewdrop, the real jade that does not disperse for a long time; The droplets disappear quickly are counterfeit goods.

2.Hand touch method If the real jade is touched by hand, there is a feeling of cold lubrication.

3.Inspection method Orient the jade to the light, such as sunlight and light, if the color is clear and the green color is evenly distributed, it is the real jade.

4.Tongue licking method The tip of the tongue licks the real jade, which has an astringent feeling; Fake jade, on the other hand, has no astringent feeling.

5.Magnifying glass ** method Put the purchased jade under the magnifying glass**, mainly whether there are cracks, no cracks are high-quality jade, and those with cracks are secondary. Even if it is a real jade, the value of the cracks is greatly reduced, and the more cracks and the more obvious the value, the lower the value.

Is there any**, there is**Send it up, I can help you take a look, jade.

**Three Crown Professional Hetian Jade Sales*** Furun Centennial provides you with the above information.