Live Appreciation of Treasures: Baoyou, this is a very good judge!

Chapter 78 Super Glass Species

Zhang Xiao didn't care what other people thought, and had a confident smile on his face from the beginning to the end.

"I really didn't expect that there would be purple jadeite."

"My friends, I will explain it to you in detail next, so you should listen carefully."

All the treasure friends in the live broadcast room are confused, isn't the rock in front of them already a waste rock?
What else do you explain to them?

"My God, did Expert Zhang spend so much money just to buy a piece of waste rock and explain to us how to distinguish waste rock?"

"I think it's unreasonable. Whoever has more money will do such a thing."

"You should stop talking nonsense, as long as you prepare a small bench and listen to Expert Zhang to give us a good analysis, it is serious."

"That's right, learn a little bit more in your hands, and don't be an ignorant gambler in the future." +9999
Su Manni moved a lot closer with the phone in her hand, just to let the treasure friends in the live broadcast room see it more clearly.

In the whole scene, old man Yu watched the most seriously, wishing to stick his eyes directly on it, he didn't even know that his feet couldn't help walking forward for a certain distance.

"Next, I will consolidate the simplest introductory knowledge for everyone. Generally, ultraviolet light is used to identify whether there is jade in the rough stone."

"As we all know, the ultraviolet lamp is an ultraviolet light source, and its wavelength can range from ten nm to four hundred nm. It is the only choice for us to identify emeralds."

Everyone was dumbfounded. Unexpectedly, the explanation they were looking forward to turned into popularizing this kind of knowledge that they had just started.

Anyone who has been in contact with the original knows the principle of using ultraviolet light to reflect light.

Some old friends couldn't help feeling disappointed when they heard Zhang Xiao's words.

However, what Zhang Xiao said next shocked them extremely.

"As long as the reflective rate reaches 12.00%, the reflective angle reaches more than [-]%, and the reflected light reaches between [-] and [-] lumens, it can basically be judged that this piece of jade is hard and oily and belongs to the top grade."

……

Zhang Xiao didn't stop as soon as he said it, and didn't end the basic explanation until more than ten minutes later.

From simple to complex, these most basic things, even those old players may not know it, they can know that the oiliness can be judged from the reflectance rate, and the type can be judged by the reflectance rate.

Zhang Xiao took the trouble to explain these things to everyone carefully.

The novices present were dumbfounded, and even the veterans were at a loss, and it took a long time to react.

Some people directly picked up their mobile phones to record all the previous scene, some kept repeating these few words, and some directly took out a notebook from their pockets and recorded frantically.

The old man Yu was so shocked that he couldn't describe it in words. He shook his head looking at these crazy people.

Memorizing what Zhang Xiao said before is useless.

Especially for those ordinary people, the effect can simply be ignored.

These things have to go through a lot of tempering, and experienced people can judge them correctly. The numbers that Zhang Xiao said are accurate to decimals cannot be judged by the naked eye.

Not to mention these very detailed numbers, even ordinary people with light and streamers cannot complete this task.

It gave him the feeling that Zhang Xiao was not analyzing problems for these people, but was summing up the experience of his life to these students from the professors of those advanced colleges.

Although everyone memorized every sentence and every number that Zhang Xiao said accurately and carefully, it was impossible to use his full power.

"What I said before is to use purple light to determine the oiliness and other substances in the original..."

"If you want to play with rough stones, you can practice more, and you will naturally know everything with more experience."

"These things I told you are the foundations of the foundation. These things are also the experience I have summed up after a long period of time, and I can provide you with some help."

After Zhang Xiao's voice fell, no one in the audience made a sound, and everyone was as quiet as death.

Let everyone almost fainted, this is also called the foundation of the foundation?

If it didn't take a long time to practice non-stop, it can be said that it was only after a lot of battles that he could reach this level. How did it become the foundation in Zhang Xiao's mouth?

Old man Yu couldn't bear the curiosity in his heart, and felt that the world was already in chaos, as if standing in front of him was not a young man, but an old expert with half a century of experience.

"Expert Zhang, tell me, can you see the lumens of light, the angle of reflection and the percentage of brilliance you mentioned earlier, can you see it with your eyes?"

Zhang Xiao was taken aback by what old man Yu said, and he stroked his hair helplessly.

"Old Yu, what's wrong with this, these are the most basic uses of the purple light, so there shouldn't be any problem!"

"This kind of experience can be summed up by anyone who has a certain amount of research on rough jadeite, and I'm not the first person to say such a thing. These are all based on experience and not fabricated out of thin air."

Regardless of whether it was the live Baoyou or the tens of millions of Baoyou in the live broadcast room, their eyes widened at the same time, and their mouths could stuff an egg.

I really don't know how Zhang Xiao's brain was formed, has it lost the limit of human beings?

The basis he said is simply a fantasy to other ordinary people, and it is more mysterious than those who say that they can go directly to heaven.

This kind of thing is the foundation in Zhang Xiao's mouth, so they can imagine that Zhang Xiao's level has reached a terrifying level.

"Our great expert Zhang has already confirmed everything systematically. Ordinary humans cannot meet your high requirements."

"Now Zhang Xiao has another classic line: This is the foundation of the foundation!"

"Sure enough, there is no harm without comparison. There is always a deep gap between geniuses and ordinary people, and I don't know that I am a genius." +1+1008611
Old man Yu still didn't dispel the doubts in his heart.

Borrowing purple light lamps from the rough stone friends around him, he wants to experiment with what Zhang Xiao said before, the streamer of each purple light lamp is a little different.

"Expert Zhang, I still have doubts in my heart. I wonder if you can explain it to me properly."

Click! !
Old man Yu turned on the first purple light flashlight in his hand, and the light directly looked at the pupils of Zhang Xiao's eyes.

"Expert Zhang, can you determine the lumens of light in this purple flashlight?"

With a confident smile on the corner of Zhang Xiao's mouth, he spoke immediately without hesitation.

"95 lumens."

click~

"One hundred and two point five lumens."

(End of this chapter)