Is the jade you bought fake? An article teaches you how to judge the authenticity of jade at home

Generally, jade is divided into three grades: A, B, and C.

A-grade refers to jewelry made from natural jadeite raw stones;

B-grade jade is made by soaking (not very good) jade in strong acid. After soaking for a period of time, the structure of the jade will be destroyed and the dirt inside will be washed away. Then place it in a vacuum state and inject glue to increase the transparency of the jade.

The green color of product C is artificially dyed. Some raw stones worth tens of yuan can be sold for hundreds of thousands of yuan after being pickled, glued and dyed to deceive those who don’t know much. ”

There are several aspects to distinguish between ABC jadeite: gloss, surface, color, weight, sound, touch, etc. The current jade market is sluggish and the situation is very chaotic. It is very necessary to understand some jade knowledge.

1. Look at the luster. When identifying A and B grade jadeite with the naked eye, first look at the luster under natural light. Generally, the luster of A-grade jade is a strong glassy luster, while the luster of B-grade jade is mostly waxy, with poorer brightness and smoothness. The edges of B-grade and C-grade jadeite often show a faint bluish-purple light, which is the color of the reflected light from the organic gum that fills it.

2. Look at the surface. Generally, you need to use a magnifying glass, 10 times is enough. The surface of A-grade jade is generally smooth, especially old jade; the surface of B-grade jade often has continuous corrosion pits. The corrosion structure on the surface of B-grade jade is disordered because the various minerals in the jade have different degrees of solubility in acid.

Like this, spider-web-like acid etching marks are often formed on the surface; while the scratches and polishing marks on the surface of A-grade goods are relatively orderly, because the friction force is generally along one direction.

3. Look at the color. For colored jadeite, B-grade and C-grade jadeite give people the feeling that the color is unnatural, the color edges often diverge, and the color appears to be floating. The color root is not visible or is not obvious. The color of A-grade goods is different, and is said to have “solid color”.

4. Look at the weight. A-grade jade is natural jade with a very high density. It will feel heavy in the hand. B and C-grade jade have been artificially corroded and filled with glue. The internal structure has been destroyed, and the natural density will decrease, so they are lighter in the hand.

5. Listen to the sound. Hang the jewelry in the air with a thin thread such as hair, and gently hit it with agate or A-grade jadeite. It will produce a very melodious, clear and echoing sound, which is crisp and pleasant with a metallic feel. The sound of B-grade jadeite is dull, not crisp, and not pleasant.

6. Natural A-grade jade feels like cool glass when touched. The processed B and C grade jadeite feel greasy to the touch.

The above is a simple method to distinguish the authenticity of jadeite. Of course, with the emergence of endless counterfeiting methods nowadays, it is still necessary to go to a professional appraisal agency for appraisal.

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