"In addition to checking cracks with your eyes, you can also feel them by touch. ”

Liu Yan said slowly: "The eyes can be assisted by a strong flashlight, and the cut surface feels that there is no trace of fracture or crack, but sometimes, the cut surface of the jadeite rough is not very smooth, it may be that the inside of the jadeite rough has been damaged, but it has not yet been manifested on the surface of the jadeite, we can't see it with the naked eye, but we can feel it with our hands." ”

Chen Song and Yang Hao listened carefully, to put it bluntly, they relied on their own senses to identify.

Liu glanced at the two people who were listening attentively, and said with a smile: "Everything has a law, and this jade rough is no exception, as long as you are familiar with the characteristics of various cracks." ”

Yang Hao was stunned for a moment and asked, "Master, are there many kinds of cracks?"

Chen Song also looked at Liu with a confused expression.

Isn't this crack a rift?

Is there anything other than the difference in size?

"Yes, the jadeite rough is damaged by external forces, so that its structure is damaged, and the cracks produced inside it are various, and the clear material after unraveling is more beautiful, because it crisscrosses the jadeite facet at a glance, so the jade world names different kinds of cracks according to the shape of the crack, and also summarizes the corresponding general rough characteristics...... Come with me!"

After Liu finished speaking, he walked forward.

Chen Song and Yang Hao hurriedly picked up the bucket and followed.

Liu Yiyan said as he walked: "The common cracks are large cracks, small cracks, transverse cracks, through-the-sky cracks, parallel cracks, head and tail cracks, head and tail cracks, and large head and tail cracks...... Other not very common ones are in addition to the heart cracks just now, as well as ghost cracks, broken cracks, bag cracks, bump cracks, hug cracks, tire cracks, also known as heart cracks, fragments, nail cracks, wrapping lines, ......"

Chen Song and Yang Hao quickly remembered.

I was amazed at the kind of crack.

I didn't say I didn't know, I was shocked when I said it, I didn't expect that there were more types of cracks than the types of color tones on the jadeite!

Listening to this series of names, I can't wait for Liu Yiyan to speak slowly.

"These are literal meanings, just understand them according to the shape, and I will tell you that they belong to special cracks. ”

Liu Yiyan stopped in front of a piece of jadeite rough with a large white hook and said, "You sprinkle water on this piece." ”

Chen Song and Yang Hao put their hands in the bucket, picked up a handful of water, and sprinkled it on the cut surface of the jade rough that Liu Yiyan said.

After the cut surface met the water, it was clear that this rough stone had reached the ice species, and it was still gray.

Yang Hao couldn't help but ask, "Master, what's the situation?"

Liu glanced at the facet of the rough stone and said: "This jadeite rough belongs to the ice species colorless, but the bottom is too gray, so it is not very transparent, and it looks like it is not good to plant water." ”

Yang Hao asked, "Master, this piece doesn't seem to be cracked, why do you put it here?"

"Isn't it cracked?"

Liu Yiyan smiled and said, "Let's take a closer look." ”

Chen Song and Yang Hao put down the bucket, stepped forward to identify it carefully, and touched the cut surface with their hands from time to time.

The cut is smooth, and you can't see or feel any cracks.

The two secretly asked if Liu Yiyan remembered wrongly.

There's no crack in this piece at all, right?

Yang Hao raised his head and cautiously glanced at Liu and said, "Master, I didn't see the crack." ”

"Really?"

Liu raised his eyebrows and said, "You guys try to play the strong light." ”

The two took out a strong flashlight and shone it, shaking it on the cut surface for a long time and still didn't see a crack.

I couldn't help but mutter.

I'm afraid Liu Yiyan remembered it wrongly.

Just when Chen Song didn't find any cracks after careful inspection many times, and couldn't help but ask out loud, Liu Yan said helplessly: "Turn the strong light flashlight to the lowest setting!"

The brightness of these two people's flashlights was so bright that they felt dazzling even when they stood so far away, and it was strange that they could see the cracks inside!

"This ...... It's really cracking....."

"One, two, three, four...... It's a lot."

According to Liu Yiyan's instructions, the two adjusted the bright flashlight to the lowest level, shone on the rough facet, and after a careful look, they found that there were really a lot of cracks in the facet, but they were a little far away from the facet, and the bottom ash could not be identified by the naked eye alone.

"Master Liu, why is this happening?"

Chen Song asked, looking at the crack the size of a hair under the cut surface.

Liu Yiyan saw that the two of them had finally found out, sighed, and said, "This belongs to the invisible lock, and this kind of crack is also called stone tendon." ”

Yang Hao asked, "Then why do you want to reduce the light to the lowest level to see?"

"It's not that you can see it at the minimum, but the light of the flashlight in your hand just now is too bright, and the invisible locks are too small, and they are under the facet, so the locks inside are completely covered by the light. ”

Liu Yiyan warned: "Do not irradiate the jadeite rough under very strong light, the strong light will not only not make the cracks of the jadeite jade appear, but will even cover up the original cracks of the jadeite rough." ”

The two nodded secretly.

The planting water of this jadeite rough is good, the cracks are too small, and when the light shines, the cracks inside are directly fused by the light, so they can't be seen.

Yang Hao asked: "The position of this rough stone without cracks is still relatively large, and there is no processing value?"

Liu Yiyan replied: "There is processing value!"

"Then why is this being placed?"

Chen Song and Yang Hao looked at Liu in surprise.

Liu Yiyan smiled and said, "Then what do you think this piece can be processed into?"

The two of them were dumbfounded.

The bottom is so gray, the ring surface made is difficult to reflect at all, and it looks gray, there is no moist and thorough sense of light, and there is no beauty at all.

As for making a bracelet, not to mention that the color is not good-looking, it is the situation of those invisible cracks that I just saw, and it is estimated that this bracelet is also made with cracks, which is meaningless.

Yang Hao muttered: "It should be no problem to make an ornament, right?"

"The ornament is indeed no problem, but its bottom is like this, and it is not welcomed by the market, and the jade merchant pays attention to the circulation of funds, and few are willing to buy this kind of material that does not know how long it will take to sell the goods after processing. ”

Liu Yiyan paused and continued: "Besides, in addition to the fact that this material is not easy to sell, the money from the sale may not even be enough for the freight estimate, and the jade merchant can make a little money after processing, but Wu Bang is directly losing money, rather than this, it is better to throw this." ”

The two suddenly realized.

If you lose money to achieve the interests of others, you are not a fool!

Anyone would rather lose it than sell it.

"Look at this again. ”

Liu Yan walked to a nearby jadeite rough with a green band on the facet.

The rough cut is a white background green belonging to the glutinous species, and the green strip on the cut surface is about a finger wide, and the green on it is very yang.

The two walked over with buckets, and this time they didn't need Liu Yiyi's instructions, they directly picked up a handful of water from the bucket and sprinkled it on the cut surface.

The facet has not changed except that it is sharper than before!

The two glanced at each other, put down the bucket, and kept shaking back and forth on the cut surface with a strong flashlight, and looked closely.

After the light moved a little, they didn't find any cracks on it, and the two of them suddenly became secretly anxious.

Since Liu Yiyan is teaching how to see cracks, it means that there must be cracks on this rough stone.

If there is no crack on the bright surface, it means that there is a small lock in the dark, but where is it hidden?

In the end, the two moved the flashlight inch by inch on the cutting surface, stopping to inspect the freshman for a while at each point of movement.

When the flashlight moved to the finger-wide green strip in the middle of the facet, I was so excited that I almost exclaimed.

I saw a slightly darker lock in the green strip, which directly divided the green strip into two, and its sides were covered with smaller than it, these strands were slightly invisible, and the linear pattern was like a net all over the entire green strip.

Just now, the two of them had been looking at the white part, but they forgot that the jade materials here were all equivalent to scraps, with such a green strip on it, if there was no problem, it would have been sold a long time ago.

The most obvious location is actually the most problematic place!

It seems that this crack really has to be carefully observed, otherwise it will either be unclear or will be subconsciously missed.

"See?"

Liu looked at the two with a smile.

"Yes, I see!"

The two nodded hurriedly.

Chen Song asked, "Master Liu, why is there only cracks in the colored parts of this rough stone, but there are no other white parts at all?"

"This rough stone is actually very special, it was originally white, with only one big crack that formed when it tumbled. ”

Liu Yiyan stepped forward, took the strong light flashlight in Chen Song's hand, shone it on the green strip, and said: "The jadeite rough has an undoubted phenomenon, that is, its cracks are easy to grow, and it is also easy to color, and the green on it belongs to the invasion of external chromogenic ions, but the formation time is not enough, resulting in the green strip where the plant is tender, and there are many cracks. ”

Yang Hao asked, "Master, you just said that it was originally a big crack, why has it become a small lock now?"

"The species of this jadeite rough is very old, so the white part has no lines and no cracks, and the junction of white and green is originally a big crack, if the rough stone is mined later, after many years, the cracks on it will also become stone lines due to the extrusion of the deposit environment, and then heal into a normal jadeite without cracks, to put it bluntly, it is also because of lack of time, and it has not been completely healed. ”

"The cracks produced by this jadeite rough can be enlarged and healed, it's amazing!"

Chen Song and Yang Hao looked amazed.

Liu Yiyan smiled: "It's amazing, but from a geological point of view, it can be explained, and it is consistent with the growth law of ordinary stones." ”

Chen Song thought for a moment, pointed to the largest crack in the middle of the green strip and asked, "Master Liu, after this healing stripe is completely healed, will these smaller locks next to it disappear?"

Even if the healing mark disappears completely, it will only reduce the strands next to it, but not all of them. ”

Liu Yiyan shook his head and said: "Because the green stripes are more tender than the healing lines and the white part, the contrast between the density of the two is too large, and it is difficult to make the small locks on it disappear completely. ”

"In other words, as long as the jadeite rough remains in the deposit, its cracks will continue to decrease, merge, and disappear?"

Chen Song seems to be the process of the formation of jadeite rough.

"That's right, this is how the jadeite rough grows, the longer it is in the deposit, the higher its density, the better the germplasm, the less cracks, when it reaches a certain level, the whole piece is without cracks, which is also the main reason why the better the jadeite, the fewer the cracks. ”

Liu Yiyan sighed: "There is a saying that you are not afraid of big cracks and afraid of small locks, in addition to the small locks will seriously affect the pickup, more importantly, the jadeite species with small locks are tender, the more small locks represent the more tender the jadeite species, even after the finished product will still appear variants!"

Chen Song and Yang Hao nodded understandingly.

"Master Liu!"

A respectful voice suddenly came from the gate of the compound.

Chen Song turned his head to look at it, and couldn't help but be stunned.