Because jadeite is a rock rather than a single crystal, there are still many gaps between crystals or minerals in the physical structure of jadeite. The author thinks that these cracks are dry and there is no special oil infiltration. After the jadeite jewelry is worn by people, various secretions of human skin will penetrate into dry gaps through contact during the wearing process, which will increase the light transmittance of jadeite, make the worn jadeite look more moist and slightly increase the transparency. Before wearing jade ornaments, there may be some inconspicuous green, which is difficult to find because of the lack of transparent texture of jade. After wearing it, the more crystal clear the texture, the more green it will gradually reveal, which has formed a folk saying that "the more you wear it, the greener it is". This is a reversible physical process. If jadeite is not worn for a long time, the filler in the gap will return to the state before wearing after volatilization. Obviously, in fact, this kind of "green" does not grow because it is popular after someone wears it, nor because of the special chemical reaction caused by the body skin secretion after wearing it. It becomes transparent after wearing it, and then "appears". Therefore, if jadeite doesn't even have those "hard-to-find greens" before wearing it, it won't "get greener as you wear it" anyway, which is what the folks call "jade that can't be worn".