Say the term jade.

1, water head: In fact, as the name implies, water head is the hydration degree of a piece of jade. If a piece of jade looks full and moist, it is a good head. It can also be said that the water head is sufficient and the water head is long. On the contrary, it is the difference head and short head.

2, rigidity: a piece of jade has good rigidity, that is, good texture and high hardness. The crystal grains of jadeite are closely combined, and a relatively perfect state is achieved by polishing process. The light sensation is full, the contrast is strong, and the light refraction effect on the surface is remarkable. It looks like cold light shining, as hard and resolute as steel.

3. Fluorescence: Fluorescence is also a good phenomenon of jadeite. When light passes through jade, it will reflect a bright line, which is what we call fluorescence. Generally, jadeite with high transparency and good water head is more likely to fluoresce with a certain radian or curved surface.

4. Glue: The glue of jadeite is the glue that looks like solidification. Under the light, the surface of jade flows like glue, and this jade is stuck. Generally speaking, jadeite with fine texture and good water head will stick to the surface.

5. Pit: The current jadeite is generally said to be the old pit jadeite. It can be understood that the original stone of jadeite is delicate and full of water. When the color is good, it becomes an old pit, and vice versa. The old pit can also refer to the comparison of mining time of the deposit, and the new pit is relatively late.

6. Cotton wadding: Cotton wadding in jadeite is usually filiform, banded and blocky. Almost all jadeites have some cotton wool more or less, and a little cotton wool can add a unique impression to jadeite.