Uncle Wang has been recycling gold jewelry for nearly 30 years, and he is very clear about the doorway, and all kinds of gold stealing methods have already been exercised.

And as for how to determine if Beiye is a layman...

Give it a try and you'll find out?

"So, let's start weighing now?" Uncle Wang took out an electronic scale from under the counter and asked Beiye with a smile.

After nodding in agreement in the northern night, Uncle Wang changed his hands into white gloves, took out a piece of gray gauze and moistened it slightly, picked up the gold coins one by one, wiped them with gauze, and put them on the electronic scale for weighing.

After all the gold coins were weighed, looking at the weight displayed by the electronic scale, Bei Ye frowned.

498 grams.

"Why is there 2 grams missing?" asked Bei Ye staring at Uncle Wang, his tone was very unkind.

"It's normal for gold to wear out, and the true weight is one or two grams less than the original weight. Still with a professional smiling expression, Uncle Wang responded to Beiye's question without blushing and heartbeat, "Although gold is an inert metal, it is soaked with sweat from the palm of the human hand in the process of being minted into gold coins for people to play with, and it will inevitably be corroded after a long time, and the 50 gold coins are only 2 grams less, which is already very well preserved." ”

"Hmph, are you a fool to me?" Bei Ye sneered, "The inertia of gold is so strong, only aqua regia in the known world can dissolve it, how can it corrode gold with only human sweat?!"

"What's more, I just weighed these 50 gold coins before I came in the morning, no more, no less, exactly 500 grams, why is it that there are 2 grams less than you here? ”

"Hehe, you are not the only guest who has come to me to sell gold for so many years. Uncle Wang smiled, with an expression that knew that you would ask this, "And no matter how I explain it, I guess you shouldn't believe it, so whether I am eight taels of scales or really worn, your pound of gold is large enough, and I can make a small profit after recycling, I won't count these two grams as yours, even if you have 500 grams of gold here?"

"Huh?" I thought it would be involved for a while, but I didn't expect the other party to let go so quickly, Bei Ye was puzzled, feeling as if he had missed something, but he nodded and agreed first.

Seeing Bei Ye nodding in agreement, a hint of smugness flashed in Uncle Wang's eyes, but he quickly carefully covered it up.

Good, hooked.

"Okay, now that we've checked the weight through the scales, we'll need to check the gold by fire, because the temperature is high and the gold may melt down, and the coins won't be in their current shape, so do you see if there's a problem?"

Afraid that Beiye would not understand, Uncle Wang explained: "Since some gold objects will be doped with a small amount of iron, copper, silver and other metals, in order to ensure the interests of our store, we will remove these impurities by burning the gold when recycling it, and then recycle the weight of the burned gold as the final weight." ”

"Of course, your gold looks good in terms of color, and the gold content should be more than 95%, and if you don't agree to burn, we can also recover 95% of the current weight as the final recovery weight. ”

"No need, burn and weigh. Beiye said bluntly.

"Okay. Uncle Wang thought to himself that I like this kind of refreshing injustice, so he took Beiye to the studio behind the store, took out a small crucible, poured all the gold coins into it, and then took an oxygen blowing gun and began to burn the gold coins.

Slowly shaking the crucible so that the gold coins gradually melted and turned into a liquid state under the burning of the musket, and when all the gold coins were completely melted, Uncle Wang turned off the musket, put the crucible aside to let it cool, and then took out the gold that was re-condensed into a solid state, put it in the ultrasonic scrubber to clean, carefully absorb the water on the gold nugget with gray gauze, and put it on the electronic scale again to weigh.

447 grams.

"447 grams, plus the 2 grams I told you earlier, that's a total of 449 grams. Shaking his head, Uncle Wang showed a regretful expression to Beiye, "It's a pity, you should let us recycle it at 95%." ”

"Of course, if you want to feel that this weight is a problem, you can also take a break and try again in another gold store. ”

"No need. ”

After taking a deep look at the numbers on the electronic scale, Beiye turned his head to look at Uncle Wang and said with a light smile: "I don't know how many years Uncle Wang has been engaged in this business?"

"It's been 27 years. Thinking that things were almost done, Uncle Wang replied while packing up the props in the studio, "I started learning art with my master at the age of 17, and I have been doing this for almost 30 years now. ”

"It's been almost 30 years, and that's a long time. Bei Ye smiled, "No wonder the technique is so skillful." ”

"After all, it is the craft of eating, and now people invest in gold mostly to buy bank gold nuggets or directly buy paper gold, our gold inspection line is becoming more and more difficult to do, thanks to the appreciation of the owner, willing to give food in the store, I naturally have to be more careful and serious when checking gold. ”

"No, no, no, Uncle Wang, you misunderstood, I'm not praising you for your skill in gold inspection. Bei Ye laughed, patted Uncle Wang's shoulder and whispered in his ear, "I'm praising you for stealing gold, you're really skilled." ”

"!!!" Uncle Wang's hand shook when he heard this, and the crucible that had been wiped clean in his hand and was about to be put back on the shelf almost fell to the ground, and he smiled reluctantly, "Sir, you really know how to joke, you have seen every move I made when I checked the gold just now, where there is an opportunity to do anything, let alone steal the gold from under your nose." ”

"Really?" Bei Ye let go of the hand that was holding Uncle Wang's shoulder and stood aside, "That's good, since Uncle Wang, you have weighed out that my gold is 449 grams, then let's recycle it according to 449 grams, I admit it." ”

"But the 500 grams of gold I brought became 449 grams, and I still feel a little unwilling, so I want to buy some things from you later, I don't know how much you can sell me the gauze for wiping gold, the crucible for melting gold, and the water for washing gold? Is 500 yuan enough?"

"Sir, are you kidding?" Uncle Wang's voice gradually became a little reluctant, "Most of these little things are items that are about to be thrown away after use, where is it worth so much money, sir better not make fun of me." ”

"Since it's a small object that you can throw away after use, wouldn't it be nice to sell it to me to make some extra money? I paid 500 yuan to collect these rags, and the price was high enough. ”

"......" Uncle Wang's face was cloudy and silent.

"Or is there some mystery hidden in these rags, so it's not convenient for you to sell them to me now?"

"Hmph, it turned out that I was here to smash the field. Uncle Wang's face darkened, and he no longer had the same enthusiastic appearance as before, and said coldly, "But I'm very puzzled, I asked myself how seamless the whole gold inspection process was, how did you see it?"

"It's simple. Bei Ye smiled, "Because I know that the gold in my hand is 500 grams of real gold, without any wear and tear and without any impurities." ”

"So in the end, when you weigh it as less than 500 grams, I know that you must have done something, and then you just need to push back where you did it. ”

"If I'm not mistaken, the gloves you wear and the gauze you use to wipe the gold coins are made of polymer ceramic fibers. "This material is extremely resistant to corrosion, and even when soaked in aqua regia, which dissolves all gold, it remains intact. ”

"The two grams that were lost during the first weighing were dissolved by the opportunity of wiping the gold with this gauze dipped in aqua regia. Speaking of this, Bei Ye shook his head and sighed, "To be honest, I didn't think of this when I weighed it for the first time, and I thought it was really a problem with the scales. ”

"But when I found out that the ultrasonic equipment you used to clean the gold in the back was a gray-brown ceramic jar, and the lights in the studio were dim, and you were still wearing those gloves when you put the gold in and when you fished it out, I was convinced that there must be something wrong with these gloves. ”

"Gold testing needs to look at the color, and this is especially true for burning gold, only gold that can still maintain its red gold color under high temperature burning is high-purity gold. And the dim lighting in your studio is not right on the colors, a low-level mistake that you can't make as a gold technician with many years of experience. ”

"So the role of this light is not to check the gold, but to mask the color of the solution in the ultrasonic instrument, the color of aqua regia. ”

"The dim lighting, the gray-brown ceramic jar, and the location of the instrument in the corner were all designed to hide the fact that the liquid in the ultrasonic solution was not water but aqua regia. That's why you don't dare to fish the gold out of it with the palm of your flesh and you have to wear gloves to get it. ”

"Bang bang. Under the analysis of Beiye's slow and logical reasoning, Uncle Wang's mind slowly regained his composure from the panic that was exposed at the beginning, and finally applauded: "It's really a good imagination, but it's a pity that I have already poured out the water in the ceramic jar when I was cleaning up just now, and there is really no way to prove to you that it is just ordinary clear water and not the aqua regia you said." ”

"How could you really dump that water. Bei Ye sneered, "There must be something in the sewers here, and it looks like the poured out aqua regia was just something you moved to another place to collect for insurance." ”

"Well, but I guess you're going to deny it. Bei Ye shrugged and said, "But it doesn't matter, the speed at which the king water dissolves the gold is not fast, and the gold nuggets have not been cleaned in it for a long time, so there is no reason why as many as 50 grams were stolen so quickly." ”

"Uncle Wang, can you show me the crucible that was used to burn the gold just now?"

“......”

"If I'm not mistaken, there must be a small opening at the top edge of the crucible that is hard to see with the naked eye. ”

"When the gold is melting, slowly turn the crucible under the pretext of uniform heating, so that the melted gold flows down the small opening into the cavity in the crucible, and I am afraid that most of the 50 grams of gold that I have disappeared have been stolen by you in this way. ”

"One of the advantages of stealing gold this way is that the bright flames of the oxygen muskets cover it all up, making it impossible to see what's going on inside, and by the time the nuggets solidify and take them out, it's all over. ”

"Of course, there are downsides, as long as you take out the cauldron and smash it, I believe you should still be able to find my gold that you stole from you. ”

"Hmph, this cauldron is an antiquity that has been passed down from generation to generation in my family, how can you say that if you smash it, you will smash it?" Uncle Wang snorted coldly and said viciously, "Besides, even if there is really gold in it after smashing, it may not be yours, maybe it is the gold nugget that my ancestors hid inside in order to avoid disaster?" This guest, I advise you not to make trouble here." ”

"Hey, it's really a man who dies for money, but for a little gold, he actually put his own ancestors in, you really have a long face for your ancestors. ”

"Actually, to be honest, I don't want to do anything. Looking directly into Uncle Wang's eyes, Bei Ye said lightly: "The gold shop in the world is as dark as it gets, even if I want to come back from you and sell the gold you stole from you, I'm afraid it's just a repeat of your process." ”

"So as long as you give me the money according to the 500-gram recycling weight, I can treat today's incident as if it didn't happen, such a request is not troublesome, right? ”

"Of course, if you think this is really troublesome, then you can just bring it up to me. But then I'll let you know..."

"I'm not afraid of trouble!"