What is the “cotton” of jade?

Usually, jade players often pay attention to whether there is "cotton" in jade when purchasing jade. This shows that the cotton in jade still has a certain impact on the value of jade. So what exactly is the “cotton” in jade?

Cotton in jade is actually a common phenomenon in jade. Usually, cotton appears inside jade in the form of white substances in the form of lumps, silk fibers or flakes, and is an integral part of jade. As long as it is pure natural jade, there will be cotton inside, it's just the difference whether it is obvious or not.

The cotton in jade is composed of mineral crystals during the geological evolution process of jade formation. Its physical structure and chemical properties are very stable, and will not change due to just a few decades of wearing. The cotton inside will not dissolve.

The formation of cotton is mainly due to the arrangement of crystals inside jade; secondly, it is caused by impurities and defects in jade. When this type of cotton gathers together, it forms blocks of cotton. When it disperses, it will spread in the jade structure, which will make the jade look very turbid as a whole. Cotton like this that is so abundant that it affects the overall appearance of the jade is considered a jade defect and will have a certain impact on the value of the jade.

Cotton not only affects the appearance of jade, it also affects the quality and color of jade. The more obvious and abundant the cotton is, the more it will affect the transparency of the jade, making the jade appear less light, transparent and spiritual.

Cotton will also affect the quality evaluation of jadeite's water quality. In severe cases, it may affect the internal structure of jadeite, making it loose, thus affecting the density of jadeite. The more cotton there is, the worse the light transmittance of the jade will be, which will make it difficult for the color of the jade to penetrate, and will also affect the diffusion of the color and color roots of the jade within the jade.

The cotton inside the jade can be seen through side light or bottom light, which appears transparent or translucent. Cotton is a unique defect of jade. If the cotton is unevenly distributed, thick, and has large grains, it will reduce the quality of jade. However, not all cotton will reduce the value of jade. Cotton that is evenly distributed, consistent in size, and looks crystal clear will often increase the value of jade and add to its beauty.

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