What kind of jade has rigidity?

The first type: old jade

Old jade has high density, small crystal gaps, fine texture, high hardness, and is easy to "harden". On the contrary, jade with a loose texture has insufficient crystal density and it is difficult to have "rigidity" no matter how it is polished.

The second type: Jadeite with high transparency and high clarity

High transparency means that the jade has sufficient water head. The so-called high clarity means that there are very few flaws inside the jade, such as cracks, dirty colors, asbestos, etc.

The third type: Jade with a certain curvature on the surface

Exquisite and perfect polishing can best reflect the "rigidity" of jadeite. The perfect curves and curvatures are calculated through the refraction of light. Exquisite polishing skills and perfect curvature play a decisive role in the "hardness".

It is worth noting that even if the jade meets the above conditions, it will not necessarily have the phenomenon of "getting hard". If the above conditions are not met, there will be no "rigidity". Therefore, "being strong" is innate and cannot be forced. As mentioned earlier, the "hardness" is reflected in the sense of light, and the hardness of jade can be felt under the refraction of light. Therefore, Qigang and Qiying often had car conflicts. After all, the "glow" feeling is also caused by the effect of light, which creates a glowing and shiny feeling on the surface.

When we shake colorless ice jade, we can see a white, soft, hazy white light, like the bright moonlight at night. This is the luster of jade. The essence of jade is also an optical phenomenon. It is because the crystal particles that form jade are extremely small and arranged in an orderly manner. When illuminated by light, it appears to be colorful. Fluorescence is a type of follow-up light. It will form a corresponding reflection angle based on the change in observation angle. Therefore, jade with fluorescence can give people the feeling that the jade is brighter than the surrounding environment at any angle.

Jadeite with lustre is mostly jadeite with very good water quality, because jadeite with rough texture will not have the optical effect of lustre. Moreover, good polishing also plays a big role in the luster of jade. Theoretically, any jadeite of the glutinous grade or above may exhibit the fluorescence phenomenon, and the closer the shape of the jadeite is to a perfect circle, the more prominent the fluorescence effect will be. The effect of lustre is most obvious among old and fine jadeite, especially colourless jadeite.

Both "yingying" and "qigang" are optical effects caused by the action of light, but they are essentially different. Because most jadeite that is hard will also be shiny, especially when the jadeite reaches at least ice grade, this coexistence phenomenon often occurs. But on the other hand, jadeite that is shiny is not necessarily hard. Jadeite with strong rigid light can also appear to have a similar glowing effect under natural light.

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