Seeing that the two of them still looked like they didn't understand.

Liu Yiyan took out a sign directly from the cabinet full of finished products, pointed to a small green strip on it, and said: "Look at the green on this, the color in the middle is slightly darker, and then this green will gradually transition to a relatively light green on both sides, until the green disappears. ”

Yang Hao looked at the uneven color line on the jade brand in Liu Yiyan's hand, and asked curiously, "Master, is this color root regular?"

"There is no pattern!"

Liu Yiyan shook his head.

"Then why is the colored part of this sign directly like a landscape painting?"

Yang Hao was puzzled.

Chen Song also had the same question.

The jade brand in Liu Yiyan's hand, square plain, without any carving, belongs to the colorless and transparent glass bottom, there is no trace of impurities in it, the whole body exudes fluorescence, and there are different sizes of green distributed on the brand, the green is very yang, very positive!

On the colorless transparent background, the green is like an ink line, outlining a beautiful landscape pattern, and under the fluorescent reflection, it is like a fairyland!

"That's the charm of machining, and that's what it looks like when it's processed in a carefully selected position on the material!"

Liu Yiyan smiled: "Because the color line, also known as the pulse line, originates from the connection of many fluid points at the same moment, just like turbulent flow, the turbulent micromass not only has transverse pulsation, but also has reverse motion relative to the total motion of the fluid, so the particle motion elements in the turbulent flow are random, and the magnitude and direction of the flow velocity are also randomly changed, so it belongs to disorder. ”

"Master Liu, what exactly does turbulence mean?"

Chen Song felt a little dizzy when he heard it, and he couldn't understand what Liu Yiyan said at all.

"Turbulent flow, also known as turbulence, is a flow state of fluid, from a physical point of view, when the flow rate is very small, the fluid will flow in layers, not mixed with each other, called laminar flow, or called flake sugar, after gradually increasing the flow rate, the streamline of the fluid begins to appear wave-like swing, the frequency and amplitude of the swing will also increase with the increase of flow velocity, this flow condition is called transition flow, when the flow velocity increases to a large size, the streamline is no longer clearly identifiable, there are many small vortices in the flow field, called turbulence, also known as turbulence, turbulence or turbulence. ”

Liu Yiyan said patiently: "Its characteristics are disordered, because the fluid points are mixed with each other, the movement is disorderly, so its movement elements have randomness and diffusion, the color on the jade is like turbulence, with randomness and diffusion, just like this piece of nothing, because of the uneven distribution of color roots, it looks like a landscape pattern, so it is cut out and polished separately is what you see now!"

Chen Song nodded understandingly, as if thinking of something, and asked, "Then won't this color root continue to spread?"

"Yes!"

Liu Yiyan nodded and said: "The color roots will gradually spread, but the diffusion of the color roots is related to the jadeite seed water, the jadeite with good water, the color of the color root will spread very well, and it is also obvious that if the jadeite seed water is not good, it will affect the spread of the color root." ”

Liu Yiyan said with a smile: "The jadeite wool that has been unlocked or the jadeite that has been finished will continue to spread, like the jadeite that has been a finished product, after wearing it for a period of time, the color root of the jadeite will change and spread, that is, the phenomenon of green growth!"

"So amazing? What causes it?"

Yang Hao asked with some surprise.

"Is it magical?"

Liu Yiyan smiled and said: "The fundamental reason is that during the wearing of jadeite, the substances secreted by the human body enter the jadeite and fully fill the gaps between the jadeite crystals, making the jadeite structure more dense and increasing the transparency of the jadeite, which is what people call people raising jade, so that the color roots of the jadeite can spread more widely, which is what people say is green!"

Chen Song frowned and asked, "Is it understandable that jadeite with delicate texture and good water cultivation can be understood, because the inside can reflect the incident light, and the color of the color root also spreads with the reflection of the incident light?"

Liu Yiyan smiled: "It can also be understood in this way!"

Yang Hao looked at Liu Yiyan's hand, which was only simply polished and did not have any carved brand, and asked, "Master, why is such a slippery brand called a no-nothing card?"

"The name of this Wufu card comes from the Zigang card without any ornamentation, the whole brand is clean, showing the original appearance of the jade brand, because there is no ornamentation, it takes its homonym, called the Wushi card, in Buddhism, nothing is there, nothing means that there is anything! ”

Liu Yan sighed: "Maybe he wants to tell us that this person has endeavored all his life, in fact, peace is the best, and under the great complexity, in fact, minimalism is the rarest!"

Looking down at the idle card in his hand, he muttered in a low voice: "Or perhaps, he thinks through this meaning, and for us, the younger generations, he can't help but have expectations, with a good blessing, so he hopes that our hard work will not be disappointed, and we can get what we want!"

Yang Hao saw the look of remembrance on his master's face, and couldn't help but ask curiously, "Who is he?"

Chen Song whispered with some embarrassment: "Lu Zigang!"

Yang Hao asked, "Who is Lu Zigang?"

"Lu Zigang is a native of the Ming Dynasty, that is, ......"

"Let him check the books himself!"

Liu Yan directly interrupted Chen Song's words.

Yang Hao scratched his head in embarrassment.

Chen Song helplessly spread his hands, gave Yang Hao a helpless look, turned his head to Liu and asked, "Master Liu, don't all jadeites have colored roots?"

This problem has been bothering Chen Song, because the existence of color roots cannot be found on some jadeite samples.

"You're wrong about this! All jadeite has colored roots, but not all jadeites show colored roots, some jadeites can see colored roots, and some are not excellent roots, such as dragon stone species, hibiscus species or high-grade jadeite full green to glass species, they can't see excellent roots!"

Liu Yiyan explained: "Because the color root distribution of these kinds of jadeite is very uniform, the color is also very uniform, the color is almost the same as the background color, or the color has been melted into the background color of the jadeite, so people can not see the transition of color shades, so the color root can not be seen, and the jadeite with good water will spread obviously, on the contrary, the color root will affect the spread of the color root if the water is not good, and the jadeite with good water is not easy to see the excellent root!"

Chen Song and Yang Hao suddenly dissipated the doubts in their hearts.

Chen Song asked, "Master Liu, how do you identify the real color through the color root?"

"Look at the color root hue, because the color root is the most intense part of a piece of jadeite, but it can also come in a variety of hues, including blue, green, black, purple, and so on...... Because the color root of the color has a great impact on the quality of jadeite, the color of the color root is positive, which directly affects the color of the finished jadeite, because only the color is positive, after the finished product, it can be a colorful jadeite. ”

After Liu finished speaking, he walked to the glass cabinet full of finished products, put the nothing to do card, and took out two imperial green pendants from it.

Pointing to the imperial green pendant with blue tones in the green, he said: "This piece gives people a blue tone in the green, but it is not a color cast, this green belongs to the best color and the highest value of green, also known as emerald green, giving people a noble beauty." ”

Then pointed to the blue, but some dark green piece of imperial green, said: "This color root is a little dark green, so these two are both imperial green, but there is a big gap in quality, there is also a huge gap in the value of the two, you can distinguish the quality of jadeite through the color root and the truth and falsehood." ”

Yang Hao asked, "Master, how do you tell the difference?"

"Look at the manifestations and distributions of color roots and transitions!"

Liu Yiyan said slowly: "The color root of jadeite can be filamentous, ribbon-like, cloud-like, point-like, block-like, flake-like, clumpy, etc., the more colors, the larger the volume, and the jadeite with a large area of color will not be bad!"

Chen Song and Yang Hao hurriedly wrote it down in their notebooks.

As for the distribution of the color roots, it is natural that the more distributed the better, the finer the better, and the more uniform the better! The finer and more uniform the distribution of the jadeite color roots, it gives people the feeling that the color of the jadeite and the flesh of the jadeite are combined, or the color of the jadeite meat, so the value of the jadeite is very high. ”

Liu glanced at the two brands in his hand and continued: "As long as the color root of the jade is slowly transitioning, it is better, remember...... If the color root is an instantaneous transition, one side is light in color, the other side is dark, and the color root appears too suddenly, it looks like a flaw, which will seriously affect the beauty and value of the jadeite itself, so the gradient of the color root has a very large impact on the quality of the jadeite!

Chen Song asked, "How do you see the specific distribution of the color roots of the jadeite rough with weathered shells?"

Yang Hao also said loudly: "Yes, there is an weathered shell, so it is estimated that the distribution of color roots cannot be seen, right?"

"This is not difficult to ..... natural emerald green, generally has a direction, as if it comes out from the inside, is the color root phenomenon, in short, the color root is the birthplace of color, and the surrounding light color is formed from the color root. ”

Liu Yiyan smiled: "So on the jadeite rough, if the color root of the jadeite is excessively concentrated, it will form a very dark strip or spot, and the larger area of the color root will form ringworm, which is the origin of the saying that green goes with ringworm, in addition, the saying that I would rather buy a line and not buy a piece is also related to the color root to a certain extent, and you can also judge the specific situation of the color root through the pine flower and python belt!"

Yang Hao and Chen Song suddenly realized.

Secretly scolded himself for forgetting the basic performance of the three jadeite roughs, such as the pine flower, python belt and ringworm of jadeite!

Yang Hao glanced at Liu expectantly and asked, "Master, how do you look at ringworm?"

"Ringworm isn't something that can be explained in a while, now ......"

A hint of cunning flashed in Liu Yiyan's eyes, he glanced at the two of them, and said with a smile: "I won't teach you!"