Chapter 56 Guaranteed
Hetian jade is a natural mineral. Because it contains very low levels of radioactive elements, its radiation value is relatively low and relatively stable, ranging from approximately 0.07 to 0.08 micrograms.
But even if it's low, there's still a limit. It's impossible for it to be four times lower than the average, or even lower than the average for ancient paper paintings.
This isn't just nonsense; it's utterly impossible.
Therefore, there is something wrong with this jade. Whether it was the initial appraisal or the subsequent appraisal, there were definitely problems.
But the appraisal report was so blatantly taken away?
The section chief and the policewoman stared blankly, but Lin Sicheng kept his eyes fixed on Guan Xingmin.
Guidance is fine, helping is fine, but you can't make us take the blame... That's what Lin Sicheng meant.
Of course, it's also because it's not stamped, so it has no effect. Otherwise, it's fine as it may.
Guan Xingmin hesitated for a moment, then took the folder from the section chief and pulled out the second one.
Lin Sicheng still didn't move: Director Guan, hurry up and make a decision...
Guan Xingmin was both amused and exasperated: No one must have taught him this, how could Lin Sicheng know it?
He sighed helplessly and then gave a wink.
The section chief immediately understood: the re-examination report was in triplicate. Besides the two copies for him and Xiao Zhu (the policewoman), there was another copy with the deputy section chief who was with the professors.
If you're going to destroy the evidence, shouldn't you destroy it completely?
He sighed, went over and whispered something to the deputy section chief, then took back the third copy as well.
Without exception, they all ended up in Lin Sicheng's pocket.
Was a shady deal completed so quietly?
Wang Qizhi's eyes lit up slightly: This composure, especially this shamelessness, is a waste that he's not in the system.
What would have happened if Lin Sicheng hadn't done that today?
Of course, we're in the same boat as the provincial and municipal forensic centers.
There's no doubt that when the case is overturned, those two scoundrels will be smugly asserting: "Look, even the guidance group from Xida University couldn't identify it..."
It was as if the guidance group had jumped right into a trap. Then, unsurprisingly, Wang Qizhi was laughed at: "You're the team leader, if you're not responsible, who is?"
Therefore, Lin Sicheng was trying to salvage Wang Qizhi's situation.
Wang Qizhi breathed a sigh of relief, took the folder from Guan Xingmin again, and began to flip through the pages one by one.
He first looked at the instrument test report:
I had Raman spectroscopy done at the provincial department, and the main component of the chromogenic substance was calcium carbonate... No problem.
I tested it with a UV probe: no staining... no problem.
Infrared spectroscopy revealed that the degree of hydroxyl loss in the jade was normal.
It has been examined under a high-powered microscope: the tool marks are obvious, and the cracks are caused by natural thermal expansion and contraction... which is normal.
That's perfect, I've never done thermoluminescence before.
But it's normal not to do it: jade is not ceramic, which requires high-temperature firing. What's the use of measuring the last heating time?
Are we perhaps going to research the origins of Hetian jade?
Therefore, the forensic agency cannot be blamed for negligence...
Secretly pondering, Guan Xingmin whispered a suggestion: "Should we call Professor Yu over to take a look?"
Lin Sicheng shook his head.
Professor Yu dared to sign the re-examination report because he was absolutely certain. If you asked him to come and see it now, he would definitely say the same thing: it's true, absolutely true.
If we ask someone from the school at the last minute, firstly, it won't be in time, and secondly, it will be a laughing stock.
He thought for a moment and said, "Let's take a look first!"
As he spoke, Lin Sicheng reached into Guan Xingmin's white coat pocket and pulled out a flashlight and a magnifying glass.
Wang Qizhi and Guan Xingmin also joined in.
With just one glance, the three of them knew why the two levels of forensic centers had authenticated it as genuine and why Professor Yu was so certain.
A typical Hetian mutton fat jade pebble, or a typical chicken bone white: as the name suggests, the jade is slightly dry, the overall jade quality is white, and it reflects a luster like chicken bones.
This is because the jade artifact was buried in an alkaline water environment for a long time, which caused the minerals to dissolve and the jade to calcify.
Next, look at the patina: the jade surface is oily and the orange peel texture is natural and fine. This is caused by the accelerated disintegration of the jade under a constant thermal expansion and contraction environment.
Looking at the carving: it's bold and vigorous. In areas with concentrated fur and dense lines, such as the lion's head and back, there are chisel marks one after another, seemingly broken yet connected. This indicates that it wasn't polished much after it was finished.
However, the decorative patterns are clearly layered, integrating various techniques such as openwork, relief carving, and high relief carving, exhibiting a balance of roughness and fineness, and strength and gentleness. This perfectly reflects the characteristics of the Mongol Yuan Dynasty, a period characterized by the combination of nomadic peoples and traditional Central Plains culture.
In layman's terms: This jade has been buried for a long time, was unearthed in a northern location, the summers are hot enough, the winters are cold enough, and the local soil is highly alkaline... It's perfect, matching the climate and soil environment of Yulin.
It means there's no problem with the era, the place of origin, or the craftsmanship.
According to instrument testing, it seems that apart from the radiation level being too low, everything else is fine.
Wang Qizhi and Guan Xingmin looked at each other in bewilderment: Had Yu Zijian's report been drawn too early?
Of course not.
Because the radiation value of Hetian jade is very stable, with a range of at most around 0.01 microns. How come this piece is missing a full 0.05 microns?
Of course it burned up.
The reason for burning is that high-quality replicas of antique jade must be treated at high temperatures to replicate the deep cracks found in genuine antique jade artifacts.
In addition, there is a unique trick to imitating chicken bone white ancient jade: simmering the head to imitate the spots.
The general method involves coating the jade with lime, burying it in sawdust, sealing it, and burning it for two days. After burning, the jade will exhibit a chicken-bone white jade texture and irregular grayish-white spots, while also producing fine fire cracks.
However, it has a drawback: the jade surface is too dry, lacking any oily feel, and it feels rough to the touch.
However, the solution is not difficult: immerse the jade in the fat layer of a live sheep, dog, or even a live cow. It will take anywhere from five to six months to develop a patina that is more authentic than jade that has been polished by hand for ten years.
At the same time, fire-damaged cracks will have a textured surface similar to orange peel... This piece of jade was probably treated in this way.
But then another question arises: no matter how realistic the imitation is, this jade is still a fake. So how did it manage to fool Raman spectroscopy, infrared spectroscopy, and high-power microscope detection?
Subconsciously, Guan Xingmin raised his head and stared straight at Lin Sicheng: "How did you do that?"
Lin Sicheng blinked: "How would I know?"
"You don't know, yet you dare to take away the re-examination report?"
The same logic applies last time: he wasn't sure if there were radioactive elements in the reflow pot, so how could he dare to send the two "Hong Kong businessmen" to the hospital?
It can't be that Lin Sicheng wants to go to jail, can it?
Guan Xingmin urged in a low voice, "Hurry up, I'm really not sure what to do!"
By helping Lin Sicheng destroy evidence in front of his colleagues, he was, in the eyes of the Municipal Public Security Bureau, a traitor. Without a satisfactory answer from his superiors, would they let him off the hook?
Lin Sicheng sighed: "It was soaked in alkaline water!"
Guan Xingmin was taken aback: "It's that simple?"
"It's not exactly simple, because there are many steps involved, but I can guarantee it's just soaking in water..."
After a slight pause, Lin Sicheng pointed to the paperweight: "Absolutely 100%!"
Guan Xingmin perked up: "We've known each other for so long, when have I ever seen Lin Sicheng make such a full promise?"
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