The species refer to the mass and transparency of the jade stone itself, i. E. The maturity of the jade stone. The thin crystals made up of jade, and the obscurity of the crystals, determine the seed and water (i. E., transparency) of the jade stone itself。
Crude sands: this refers to the large size of the granules that make up the original crust, and the crystals within the original rock are generally thick, with the majority being grown in beans。
Slender: this means that the granules that make up the original crust are fine, and the internal crystal structure of the original rock is generally fine and the seed is predominantly grass。
Sand-smoothing: the finger-skin casings are equally large in size and their internal crystal-cline particles are generally more uniform。
Sand-discrete: the size of the penthouse particles that make up the skin shell is confused, and the size and structure of the crystals inside the original stone is generally confusing, as is the case with the hair。
Water lengths and feet are highly transparent, short and low. Cultivation is often associated with the head, referred to collectively as water. The advantages and disadvantages of seeds depend on the quality of the water, while at the same time affecting the good and bad of the water, and they reflect the relationship between the qualitative determination of transparency。
The crystals are fine and thin, and the genre of the jade is old and known as the “old species”; and it's thick and loose, and it's tender, which is called “young” or “new”。
The “older” and “lower” of the jade are shown on the hardness of the emerald stone, the higher the hardness of the old, the more resistant it is to be used, the lower the hardness of the jade stone, the less resistant to grinding and the dryness of the inherent green。
What about the jade stone
1. Observations by pouring water indicate that the species are older if the water does not work quickly on the emerald crust, indicating that the crystal structure inside the emerald rock is more closely structured。
2. Observe the original crust of stone, and see the grains on the original crust of stone weather, with a hand touch, and if the grains are in a state of standing, they are evenly rigid and coarse, almost the same as old jade stones, and by placing a light, it is possible to see a sense of convergence across the entire radium. Inverse grains are not visible enough, are unevenly distributed and are easily defunct in the mass。
3 seeing the shape of the stone, the elliptical angle is more or less older。
