Jade is very spiritual. Indeed, it will change color because of chemical reaction. For example, if jadeite is worn for a long time, its color will become darker. The original green will appear greener, which is a chemical reaction. There is an element chromium in human sweat. Emerald will gradually darken after being corroded by sweat, but the degree of color deepening is not obvious. Some things are not easy to see without careful inspection. Good jade is more transparent and brighter with it. If the color changes obviously, the difference is great, which means that the color that has been chemically dyed will have adverse factors on the human body. There are also many good jade, which should be measured according to its color, smoothness and price. How to judge the details depends on what you see. Speaking here now is tantamount to empty talk. All the jewelry stores are not bad, and they are not fake (the jewelry brand stores I saw), but the prices are really high and value for money, as long as I like them. Yours is dyed jade. It will fade after a long time and can be dyed again. It is recommended to wear natural jade. Jade without any chemical treatment has health care effect on human body. Really wear it for a long time and it will change color. Old people say that jade will absorb aura and become spiritual when worn for a long time, so jade can ward off evil spirits and dredge meridians, but it will not cause harm to people during wearing. The reason for this statement may be that jadeite will change after being worn for a long time, becoming particularly round and smooth, some will change color, or something similar to bloodshot will be produced. This is actually a physical change, which has nothing to do with immaterial phenomena. Discoloration usually goes from shallow to deep, which is caused by people's long-term contact. Things that are rubbed for a long time will form an oil film on the surface, and the places where stone tablets and pillars in tourist attractions often contact will turn bright black. That's the reason. There is jade that forms "bloodshot", but the substance is constantly changing, and it is normal to add complex external influences (human contact, sweat, different constitutions) ...) (1) Look.

Mainly depends on the crystal transparency, internal structure, luster and so on. Real jade is transparent, oily and shiny, with natural patterns, and the internal fiber state is not easy to imitate.

2. Listen

Real jade sounds crisp, while fake jade sounds dull.

(3) measurement

Mainly to measure hardness. With the glass plate (friction hardness of 5.5) as the standard, except jadeite and turquoise, stripes can generally be drawn on the glass plate, and jadeite itself is complete. Fake jade is generally soft and can't scrape the glass.

Common fake jade is generally made of plastic and glass. They are all amorphous materials with low hardness and low density, and they are also the essential characteristics of materials. Plastic, for example, can be picked with a steel needle or floated gently in your hand. Glass is bubble-like under light or sunlight, and amorphous under polarizer (there is no periodic change of light and shade when rotating), and there are raw materials for making spiral stripes. Good luck and happiness!