Identify by soaking in hot water. We can put the jade in boiling hot water, and after a period of time, see if there is any discoloration in the water, or rub the jade with cloth to see if there is any discoloration. If it is really jade, it will not fade.
According to the color, density, smoothness and convexity of the epidermis, we can roughly estimate the internal color of jadeite raw materials, the quality of water head, the quality of land, the old and tender types and the number of cracks.
Judging the authenticity of jadeite includes: listening to the sound, watching the color, watching the clarity, weighing and measuring the hardness. Listen to the sound: tap the jade, natural jade sounds crisp, fake jade is black and heavy.
Method 1: Is there a testing institution nearby? The certificate issued by the testing organization is the simplest and most authoritative identification method. Method 2: It is one-sided to identify jadeite by its characteristics. Let me explain it in detail below. To identify yourself, we must first know the characteristics of jade.
How to identify jadeite
1. Method of identifying jadeite: look at color, flaw, microwave pattern, surface, hardness, cold touch, winding hair on jadeite and burning. Look at the color. The color of natural jadeite is not enchanting, clear and changeable in depth.
2. The method of identifying true and false jadeite is as follows: Listen to the sound: tap the jadeite, the natural jadeite sounds crisp, and the fake jadeite is dull and heavy. Look at the color: the color of real jade and fake jade can be distinguished. Real jade is natural, soft and changeable, while fake jade is frivolous, frivolous, symmetrical and unified.
3. When listening to the sound to identify jadeite, you can tap its surface first and listen to the sound made by jadeite. If it is natural jade, we usually hear a crisp sound when knocking at the door, because the internal structure of natural jade is dense and there are no bubbles.
How to tell the true and false jadeite?
The method of distinguishing true and false jadeite: color root. The color root is slightly dark green with a little or a thin band. Among these colors, slightly darker green gradually transitions to relatively lighter green. The color and foundation of natural jade A goods are natural and generous, and the green is distributed in roots or blocks, with clear and clear outline. Emerald
According to the color, density, smoothness and convexity of the epidermis, we can roughly estimate the internal color of jadeite raw materials, the quality of water head, the quality of land, the old and tender types and the number of cracks.
Look at the polished surface: the polished surface of natural jadeite is fine and smooth, with grease showing a strong glass luster. If you look closely at the polished surface, you can usually see the mottled crystal interwoven structure. In general, the variegated crystal particles of the same jadeite are uniform in size; At the same time, slightly transparent to opaque white fibrous crystals can be seen, commonly known as "stone flowers".
Jade inspection method?
1. How to identify the authenticity of a certificate depends on the marks: on a real jade certificate, the most conspicuous marks are several English abbreviations, and the common marks are "CMA", "CAL" or "CNAL". CMA is the symbol of metrological certification of testing institutions, and the institutions with this symbol are legal testing institutions.
2. The appraisers make a preliminary judgment on the appearance of jadeite, then weigh it, and then observe whether jadeite emits fluorescence with fluorescent lamp.
3. Weight: Jade belongs to jadeite, and its hardness is about 5 to 7. When you put jade in your hand, you will feel like you have left your hand. If it is too light, other aspects of jadeite need further identification. Listen to the sound: jade is dense, so it is brittle.
4. Identify true and false jadeite: First, first, look at whether there are small holes in the face of natural light, whether it is true or not, and whether it is really smooth. Second, drop a drop of water on the jade surface with a toothpick. If it is true, it will hang on it like dew, not fake. Be sure to clean the jade before inspection.
Where can jadeite be identified? How and where to identify jadeite?
1. Jade can go to an authoritative jewelry and jade appraisal institution recognized by the state for instrument appraisal and issue an appraisal certificate. The simplest way to identify jadeite is: luster: after being soaked in strong acid and alkali, jadeite has loose structure, and there are pits on the surface before it is full, which makes it spread and its luster weaken.
2. General jewelry appraisal bureau, jade wholesale market and large jewelry store can all identify the authenticity of jade.
3. Identifying the origin of jadeite If you want to identify jadeite, the easiest and most effective way for beginners is to send jadeite to the local jadeite quality inspection center for inspection, and at the same time send the jadeite identification certificate to the quality inspection center for identification.