Unparalleled Treasures

Seeing Zhang Can's expression, Zhou Nan's little aunt was stunned, and asked nervously, "Why, this thing is worthless?"

Zhang Can pondered for a while, then nodded before replying: "Let me explain the difference between zircon and diamond to you first. Diamond is the hardest substance in the world. I won't talk about its value. You also understand, so I will explain it to you." Let’s talk about zircon, because diamonds are precious and valuable, no matter what kind of thing, as long as it is valuable, there will be fakes, fakes, and substitutes. Zircon is the best substitute for diamonds. In appearance, zircon is the most similar type to diamonds. Pure natural zircons are not worthless. Natural gem-grade zircons are also called gems. Although they are not as good as diamonds, they are also valuable for collection. As for the substitutes for diamonds in the market, it can be said that 90.00% of them are not natural zircons, but a kind of artificially synthesized zircons. Zircon is even more incomparable with diamonds. In order to maximize value, fakes usually use this artificial zircon instead.”

This time, Zhang Can’s explanation made it unbearable for Zhou Nan’s little aunt and uncle, especially Zhou Nan’s little aunt, trembling with anger, muttered in her mouth: “I must sue these liars. They, sue!"

Xie Jiacheng is also shameless. The jewelry of the elder sister-in-law and the second sister-in-law are all genuine. Although they are not particularly valuable and are somewhat different from the purchase price, they are all genuine. There is nothing to say about this. The richest family, but they are the ones who make mistakes one after another, which makes him lose face at all, and can only vent his anger on the businessman who sold them to them!

Only Xie Yong and Zhou Nan were like outsiders. They didn't feel angry for them. Instead, they thought Zhang Can's side was more interesting. They asked Zhang Can one after another.

"Zhang Can, what is the difference between zircon and diamond?"

"Brother Zhang, do you want me to bring another basin of water?"

Zhang Can couldn't help laughing, waved his hands and said, "You can only test rosewood with water, but you can't test zircon with water. This..."

After pondering for a while, he said to Xie Yong: "Well, you can find a piece of glass over here, it doesn't need to be too big, a small glass mirror for girls will do!"

"Yes, I have it in my room!"

Xie Yong excitedly agreed, and quickly jumped up to his house to take a glass mirror as big as a cutting board.

Zhang Can stretched out his hand to Zhou Nan's little aunt and said, "Auntie, please give me the ring!"

Zhou Nan's little aunt hurriedly handed him the diamond ring, and Zhang Can took it. Instead of testing it first, he held the diamond ring and explained: "Look, the difference between diamonds and zircons, in fact, the difference can be seen with the naked eye. It is difficult to distinguish, no matter what aspects of visual inspection, light, refraction, and side observation, the reason why zircon is a substitute for diamonds is because the similarity is too high to be distinguished by the naked eye. If we want to distinguish whether a diamond is real, Let me talk about a few points. First, zircon is a heterogeneous body. Looking down from the top surface of the polished zircon facet, you can see that the facets at the bottom have clear double shadows, while diamonds have no double shadows. film."

As Zhang Can said, he put the diamond ring flat on the coffee table, and then looked down at the light. Zhou Nan leaned his head over to look at it, and said, "Hey, there really is a double image!"

Several people came over one after another to learn how to look at it. They all looked down from the top of the diamond ring, and they saw a clear double shadow at the bottom.

Zhang Can also said: "The second point, this is also the simplest and most practical identification method. Diamond is also commonly known as diamond, which is the hardest known substance in the world. Its hardness reaches ten on the Mohs scale. There are only eight grades. If you want to be the most secure, you can only use objects with a Mohs hardness of nine grades to scratch. Real diamonds can scratch marks, but zircons can’t be scratched, and they may damage themselves, but we In order not to damage my aunt’s ring, I don’t use things with a hardness of [-] to test. The hardness of glass is actually only about [-], which is far lower than [-], but the gap with zircon is not very big. If you use glass to test It is easier and more convenient, and will not damage the zircon, have you ever seen a knife for scratching glass?"

Almost everyone in the hall nodded. Scratching glass is not cutting-edge technology. Many people have seen it. Ordinary hardware stores have artificial diamond scratching knives for scratching glass. Synthetic diamond is harder than natural diamond, that is, natural diamond. The hardness of diamond is slightly lower, but it is easy to scratch the glass. Use a scribe knife inlaid with artificial diamond to scratch the glass, and there is a very crisp sound, and the glass is easily scratched without any effort.

Zhang Can held the diamond ring in his hand, and then used the zircon tip of the diamond ring to swipe on the surface of the glass mirror without too much force. There was an unpleasant "creaking" sound, and the glass mirror was scratched and cracked. Yes, but the sound was very unpleasant. It was obvious that the diamond-scratched glass on the surface of the diamond ring was not so arbitrary.

At this time, everyone really believed in Zhang Can. No matter how beautiful the words are, it is better to use the facts to prove that what they saw with their own eyes is more effective than a thousand beautiful words.

Zhang Can smiled and said: "There is a third point, but most people don't know much about it, and that is the specific gravity. The specific gravity of diamond is [-], while the specific gravity of zircon is more than [-], so we say , Diamonds and zircons of the same size, zircons are much heavier, but people who are not familiar with diamonds don’t understand, and you can’t tell them apart.”

"This is, I don't know anything about diamonds and zircons. If you hadn't made it so clear just now, I wouldn't know anything about it!" Zhou Nan nodded and followed suit. Zhang Can in the gold shop just explained The diamond in that diamond ring is a broken diamond, but zircon was not mentioned, so she also finds it very fresh and interesting to say it now. If Zhang Can is a teacher, then she will think that Zhang Can's speech is undoubtedly It was very successful and attracted them all.

The old lady waved her hand and said happily: "Okay, okay, don't look at it, today is my birthday, and Xiao Zhang is a guest again, you are not guests? This host has to look like a host!"

After sitting down again, the Xie brothers looked at Zhang Can differently. They all sat close to him and asked him questions about antiques. Originally, they were not interested in this business. Interested, but Zhang Can only spent half an hour to attract their family.

And Xie Jiacheng completely believed Zhang Can's opinion on his watch, and decided to go to the specialty store to disassemble it for verification.

Zhou Nan was even more radiant with a smile. I didn't expect that Zhang Can, whom I met by chance, would have such good insight. Grandma really liked it. It made grandma happy. This is better than giving her any high-end things. Send good things, and the three uncles still give less?

Looking at the old lady's family, it is obvious that the conditions are quite good. The three brothers of the Xie family all seem to have financial strength, and Zhou Nan's parents, from the words they accidentally mentioned, seem to be some kind of official. What kind of management, what kind of real power figure, otherwise she wouldn't use that kind of tone, but Zhou Nan didn't have the frivolous and flaunting behavior of an official lady or a rich second generation. If he asked for the gold bracelet at a higher price in front of him, he really couldn't tell that she was a rich person. From this point of view, Zhang Can had a good impression of Zhou Nan.

The old lady doesn't like to waste money in big hotels and restaurants, and she doesn't like to put up banquets. On this [-]th birthday, she only asks her children to stay with her at home.

This is what Zhou Nan secretly told Zhang Can. In the following one or two hours, the children of Zhou Nan's uncle and second uncle all came over one after another, calling grandma and giving gifts at the same time, and the old lady accepted it with a smile. .

However, Xie Yong also secretly told Zhang Can that although the cousins ​​gave gifts to the old lady, they usually get more from the old lady. The old lady is their protector and financial backing. Basically, they have When there is difficulty or pain, they will not turn to their parents, but to the old lady. Only grandma is the one they can rely on most.

After a while, Xie Yong whispered to Zhang Can again: "Actually, I am too. Grandma is nagging me, but I know she is really good to me!"

The old lady is a very wise and kind elder, Zhang Can can feel it from this period of contact and conversation.

A few aunts were busy cooking in the kitchen, and a few uncles were talking in the living room, talking about business matters. Zhou Nan, a cousin, two cousins ​​and a cousin were also laughing and joking. , They glanced at Zhang Can from time to time, and then whispered in Zhou Nan's ear, followed by another burst of laughter.

Zhou Nan blushed, and Zhang Can knew what they were talking about without even thinking about it. It could be seen that although Zhou Nan blushed, she didn't argue about anything, but it didn't mean that she fell in love with her at first sight and fell in love with her. It didn't take long, but Zhang Can seemed to get to know Zhou Nan naturally.

This girl is actually very lofty and aloof in her heart. I just met her by chance. Maybe because I gave her the bracelet and made the old lady's birthday happy at her grandmother's house, so I may have a feeling for myself. Some favors, but this is by no means love!

Zhang Can will not be blind enough to think that Zhou Nan fell in love with him at first sight. What is his identity and level, but he can understand very well. With Zhou Nan's beauty, status and family, she is not the person he should like and pursue. Liu Xiaoqin... Zhang Can's heart trembled when he thought of this girl!

I feel a little pain in my heart. It is undeniable that Liu Xiaoqin is a good girl. She sold her own future and life for her father without hesitation. Zhang Can likes and appreciates this filial piety and courage, but in his heart, she always It hurts that she lied to herself!

Zhang Can didn't think there was anything wrong with this kind of deception in the past, or in the movies and TV shows he saw. He also felt that he would absolutely tolerate and like such deception, but when it really fell on him, I just feel like I can't stand it!

After drinking a cup of hot tea, Zhang Can got up and said goodbye to the old lady: "Old man, I won't bother your family anymore, I still have some things to do!"

"No, boy, you can't go!"

The old lady waved her hand, refused, and said with a smile: "You are my friend. Since you are here, you are my guest. There is nothing good about it. I don't like extravagance. My sons have to go to the university. Restaurant, I don’t agree, I think no matter how good the food is, it’s not as good as casual meals cooked at home. What I want is the atmosphere of family reunion. You see, I’m 80 years old, and my life is coming to an end. Can you watch The happiest thing is to have children and grandchildren around their knees!"

Zhang Can turned her head and looked at Zhou Nan again, she smiled and raised her pretty chin, stretched out a white finger and shook it.

Can't go!

The old lady stood up suddenly and said to Zhang Can: "Xiao Zhang, come here, come with me to the room, I want to chat with you for a while!"

"Oh..." Zhang Can was stunned. The expression of the old lady obviously meant that as long as he went to the room alone, there might be some treasures for him to appraise. Thinking that there might be more rare things, Zhang Can also Get excited!