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.
Identified by hardness. Real jadeite has a high hardness. We can scratch or scrape the surface of jade with sharp nails or knives. If it is real jade, the surface of jade will feel very slippery and will not leave any scratches.
The identification method of jadeite is as follows: look at the color root. Natural jadeite, especially green jadeite, has color roots. A color root is a place where green is thick, and then green will spread around the color root. Under the transmission of strong light, green will fade or disappear in some places, but the color root is still green.
The popular and unreliable recognition method in the workshop is listening to sound recognition. It sounds crisp and pleasant to knock A jade with A jade, and dull to knock B jade. (In this way, if there is a crack in the jade, it will affect the sound transmission, and it is completely unreliable to identify it by feeling.
Where is the jadeite identified?
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.
4. Jade can go to an authoritative jewelry and jade appraisal institution recognized by the state for instrument appraisal and issue an appraisal certificate. In this way, the result is exact, the authenticity is clear at a glance, and it can be foolproof.
5. To identify jadeite, you can go to the local jewelry and jade quality supervision and testing center. The local jewelry agency is more authoritative. In addition, in some jade crystal wholesale distribution centers, such as Sihui, Donghai and other cities, there will also be gem testing institutions.
6. In formal shopping malls, jadeite is generally equipped with a certificate. These certificates are appraised by a regular jade jewelry appraisal center, and usually indicate that the jadeite you bought is Grade A, B and C. The A goods refer to pure natural jadeite without any treatment. Under the irradiation of fluorescent lamps, goods A will not change.
How to test the authenticity of jadeite jade
1, the method to identify the authenticity of 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
2. Identify by the color and luster of the surface. Real jadeite feels smooth by hand and looks shiny in the sun. The pattern inside is also exquisite, which has a cool feeling.
3. Look at the gloss. Swing the jade left and right in the sun, carefully observe the luster of the jade surface, and identify the authenticity of the jade. Natural jadeite has a good glass luster, but the luster is not very strong. Jade has a strong resin luster after artificial dyeing and glue injection. Fluorescence reaction.
4. The method of identifying jadeite is as follows: The type of jadeite refers to the structure and structure of jadeite. It is an important symbol of jade quality.
5. Identify true and false jadeite: First, first, look at whether there are 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.
6. 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.