The waterline is a translucent rib-like thing inside the jade, appearing in a straight line or nearly straight line. “Waterline†is a fault or defect in jade, but some Hetian jade with “waterline†is relatively finer and more oily.
The formation of the Hetian jade water line:
After the formation of Hetian jade, the deposition of ore-forming materials such as tremolite and the closure of the ore-forming fluid itself led to the accumulation of liquid pressure, which eventually caused the internal fault of Hetian jade to re-act.
The fault activity leads to the formation of a series of straight tensile shear fissures in Hetian jade. The pressure of long-term accumulation of ore-forming fluids is also instantaneously released and rapidly filled into micro-cracks. The tremolite is perpendicular to the direction of shear stress. Growth, and finally the formation of tremolite fibers, so the formation of water lines in Hetian jade is related to the multiple activities of ore-forming fluids.
In layman's terms, it is the line formed by the secondary crystallization in the fracture of the Hetian jade ore body, just like the scar after the human skin is healed.
How to identify the water line in Hetian jade?
The “waterline†in natural jade is distributed in a linear pattern, sometimes visible to the naked eye, and sometimes it is hidden under the skin color of the jade, which needs to be observed with strong side light. When the waterline is identified, it is shaped like a rib in the jade material, and it has a transparent feeling, and it is more obvious than the jade of the surrounding part, and it is easy to see the difference in appearance.
What jade materials are there in the water line?
Whether it is Hetian Yushan material or seed material, and regardless of Qinghai material or Russian material, Korean material will have waterline. But not every Hetian jade has a waterline. Relatively speaking, the waterline of Qinghai is more frequent.
Qinghai jade has many water lines distributed and disordered. The water line of Hetian seed material is relatively regular and the quantity is very small. It is not unusual to see the water line in small seed materials.
The waterline is a place where the density of the jade is relatively large. When the master is engraving, if the waterline is encountered, the difficulty of engraving will increase. Therefore, in processing, in order to avoid the waterline, it will be cut along the waterline.
If in the general seed material, the position of the water line is at the edge, and the naked eye is difficult to find, the influence on the value of the jade is small, and the experienced master thinks that there is a water line material, the density tends to be large, oily. Also better, so the price is higher.
Moreover, although the water line of some jade articles is relatively obvious, it is better to evade or cover the waterline during the processing, but it is more distinctive. If the water line is used well, it is a good thing.
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