For thousands of years, Hetian jade has been loved by people. Not only does it have a long history, but it also contains rich cultural connotations, so the value of Hetian jade has always been highly regarded.
There are many factors that affect the value of Hetian jade, and color occupies an important part of it. The color of Hetian jade can be divided into primary color and secondary color. Primary color refers to the color of Hetian jade itself when it is mineralized, which is determined by the mineral compositionThe secondary color is the color that changes the day after tomorrow due to external forces.
The primary color refers to the natural color of jade, including the color of impurities, the color of blending with the surrounding rock, and the color of re-blending and metamorphism during the mineralization process. The primary color of Hetian jade can be divided into white, yellow, blue, blue, ink, etc., and the blending between them and the participation of impurities in color show different colors. People also often name and distinguish different jade species according to the different colors of jade.
Secondary color refers to the color formed by external forces. According to the different external forces, secondary colors can be divided into natural secondary colors and artificial secondary colors. Natural secondary colors are naturally generated, while artificial secondary colors are changed by human labor. When geological movements cause great changes in mountains and rivers, the environment of jade is also affected. Either exposed to the surface, washed into a river, or buried in other rocks. The surrounding environment, such as wind and sun, water erosion, chemical changes, etc., will have an impact on the properties of jade, causing it to change, such as changing color. Artificial secondary color usually refers to the change of the color of jade after being worn and played by people.
Regarding the color of Hetian jade, the identification of dyed Hetian jade is mainly judged from the characteristics of color, shape and hardness. The color of dyed Hetian jade seed material is usually too intense, floating, rigid, unnatural, and the color of the crack is distributed along the crack or ridge line, which is quite different from the surrounding color, and there is no gradual transitionSometimes it can be seen to be directional, almost reticulated, and dry and not moisturizing. Zooming in to observe the crack, it can be seen that the particles in the center of the crack are the color of the whole or part of the dye, and the color near the crack has no penetration depth, and the edge has a sense of smearing and floating. The part of the fake skin is generally loose jade, and it is easy to fade and fade when it is scalded with boiling water. And for some previous dyeing methods, such as walnut skin, organic dyes, etc.