When Han Xiaoxiao mentioned the ruby in the dark, Han Peacock knew that Han Xiaoxiao really knew about this kind of gem. It seemed that Liu Xiaoxiao had not seen him for a while, and Liu Xuxiao must have taught Han Xiaoxiao a lot. Otherwise, Han Xiaoxiao would
Laughter will not progress so quickly.
Han Peacock just looked at Liuxu, but he didn't expect that out of the corner of his eye, he saw Beauty Zhou showing a bright smile. There was satisfaction and relief in that smile. What did it mean? Han Peacock was dumbfounded again.
"Teacher Zhou, are you right what I said? Idiots cannot be taught!" Han Xiaoxiao continued to attack Han Feng.
Han Feng, a brat, had turned into a fool, and Han Peacock was helpless.
Han Feng, who was even more helpless, could only ask Han Peacock for help. Han Peacock had to say: "This is alexandrite, also called alexandrite. It is a variant of chrysoberyl. Under normal light during the day, it looks like gold.
Emerald, but under the light and tungsten lamp, it will turn red, so it is called emerald in the day and ruby in the night."
"It's fake, right? Doesn't it mean that chrysoberyl is cat's eye, while other gemstones such as emerald and tourmaline can only be named? Are chrysoberyl also found in this emerald vein?" Han Feng was a little dissatisfied.
When Han Feng said this, the strange Han Xiaoxiao did not refute, but looked at Han Feng with a strange smile.
The other adults all held up their foreheads. Han Feng was deceived by Han Xiaoxiao and became lame. He brought this gem. Just now, he was anxious because the value was too low. It was not as valuable as Han Xiaoxiao's. Now he is worried.
Are you starting to belittle yourself?
Han Feng was embarrassed to be seen. He touched his head and said awkwardly: "Haha, I didn't expect that a gem I just picked up would be so valuable."
"Did you take it casually? You were obviously robbing me." Han Xiaoxiao glared at Han Feng and said.
"It's all yours, right?" Han Feng said directly.
The two people were jostling each other, but Han Kongque and the others were looking at the gem with great interest.
"Is this Alexandrite?" Liuxu asked curiously.
Qin Mingyue said: "I have seen cat's eye stone, but I have never seen a cat's eye stone that can change color!"
Zhou Meiren said: "I have only seen it once. The price of this thing is not too expensive, but it is definitely rare."
Han Kongque said with a smile: "That's because of the lack of hype. Buy a batch first, then find some people to write more soft articles. After a period of speculation, the price will be high."
"It's really magical, it can actually change color!" Liuxu ignored Han Peacock.
This gemstone is a real good thing. Because it has the color-changing effect of turning green under sunlight and red under candlelight and incandescent lamps, many people praise alexandrite as "the emerald in the day and the ruby in the night."
It is said that in 1830, alexandrite was first discovered in an emerald mine in the Urals of Russia. The miners dedicated this color-changing gemstone to the Russian Crown Prince Alexander II.
On Alexander II's 21st birthday, he set this newly discovered strange gemstone in his crown and named it "Alexandrite", which means alexandrite.
"Is this completely different from cat's eye stone?" Qin Mingyue asked.
Zhou Meiren said: "Of course, alexandrite, like cat's eye, is a chrysoberyl in mineralogy, but they are two different gemstones due to their different optical characteristics."
"Why is the price of such a good gem so low?" Qin Mingyue asked strangely.
"It's not that the price is not high, but it's a bit lower than other precious gems." Zhou Meiren is an expert in this field, so she understands it very well.
"Isn't there really a lack of hype?" Qin Mingyue glanced at Han Peacock and said.
Liu Xu smiled and said: "Do you really listen to his nonsense? If you really follow the method he said, you will definitely lose your life. How many counterfeiters are there in the antique jewelry market now? They have formed a huge industrial chain.
, if you want hype, I think the happiest person is them."
When Zhou Meiren thought about it, this was really the case. In the jewelry market, artificial corundum alexandrite, artificial spinel alexandrite, artificial synthetic alexandrite, and fake alexandrite were sold everywhere.
If she really buys a batch of alexandrite according to Han Kongque's method and waits for the price to rise, the price will definitely not reach her target, and the counterfeiters will ship in large quantities.
"That's the only bad thing about the market now. Counterfeit goods are rampant!" Zhou Meiren could only sigh.
"Actually, it's very easy to identify this thing, right?" Han Peacock asked again.
Zhou Meiren glanced at Han Kongque and said, "Do you think that everyone is like you and can recognize what kind of gem this is at a glance?"
"Dad is awesome." At this moment, Han Feng and Han Xiaoxiao, who had been complaining about each other just now, immediately shouted in unison.
"What's great? Isn't it just about identifying jewelry with the naked eye? Your mother and I can do it too," Zhou Meiren said angrily.
"Mom, you are a professional, my father is an amateur, and it is quite good for an amateur to achieve this level." Han Feng said matter-of-factly.
"Haha" Han Feng said, Liu Xu and Qin Mingyue both laughed, and even Zhou Meiren, who was a little angry just now, also showed a smile.
Han Kongque could only smile bitterly. He knew that for people like Zhou Meiren who often come into contact with jewelry, it is not difficult to identify alexandrite with the naked eye.
Characteristics such as pleochroism, inclusion characteristics and particle size are easily identifiable.
Natural alexandrite appears dark green or fluorescent green under sunlight, has a particle size of less than 1 cm, is trichromatic, and has gas and liquid two-phase inclusions.
Artificial corundum alexandrite only has dichroism, artificial spinel has no pleochroism, artificial corundum alexandrite, and artificial spinel alexandrite have gas, liquid inclusions and arc-shaped color bands.
Therefore, as long as you have some professional knowledge, it is not difficult to identify alexandrite.
"The color of this alexandrite is really good." The alexandrite fell into Zhou Meiren's hands, and she immediately beamed with joy.
Qin Mingyue was definitely not ashamed to ask: "It looks similar to emerald. Is this considered good?"
"The emerald itself is the top-grade green, and this alexandrite changes color to pigeon blood red, which makes it even more rare." Zhou Meiren said.
Han Kongque laughed and said to Qin Mingyue: "Don't be embarrassed. With your level, how dare you say you know about jewelry?"
"If I don't understand, just ask. The more you ask and the more you listen, the more you understand." Qin Mingyue rolled her eyes at Han Peacock. If you don't know, you just don't know. If you don't ask, you won't know when. If you ask,
You will know later.
"Uh!" Han Kongque could only admire him, and that's right. If he didn't have such a little energy, Qin Mingyue would not be Qin Mingyue.
"The price of an alexandrite cat's eye of this color will definitely not be low." Liu Xu interrupted the conversation between Han Peacock and Qin Mingyue.
Zhou Meiren continued: "Alexandrite has a perfect color-changing effect, which is the basis for evaluation and purchase. In most cases, alexandrite appears deep red to purple under light, and pale yellow-green and blue-green under sunlight. The best emerald green
The red color of ruby is rarely seen.”
Han Peacock chuckled and said: "If we get it in Russia, we will definitely be able to sell it at a good price."
In Russia in the past, alexandrite was deeply loved, and the green and red colors it presented were once the colors of the Russian Royal Guard.
People in some countries regard alexandrite, moonstone, and pearls as "June birthstones", symbolizing health, wealth and longevity, and are known as "stones of health."
Therefore, alexandrite, like ruby and sapphire, is the most sought after by Westerners.
"Such a big alexandrite cat's eye, it should be considered big, right?" LiuXu asked at this time.
Han Peacock nodded and said: "It's big among alexandrite cat's eyes, but not too big among alexandrite."
"Alexandrite and cat's eye are both precious, right? When the two are combined, they should be even more precious." Qin Mingyue made it clear this time.
Han Peacock had no reason to ridicule Qin Mingyue this time, so he could only chuckle and said: "Both alexandrite and cat's eye are among the five most precious high-end gemstones in the world. Only when alexandrite also has the cat's eye effect, we can
Call it an alexandrite cat’s eye, it’s a very rare and expensive gemstone.”
"You understand." Qin Mingyue rolled her eyes at Han Peacock and said.
Zhou Meiren also chuckled and said: "In Sri Lanka, a huge alexandrite weighing 1,876 carats was discovered. After polishing, the final product weighed 65.7 carats. It is now collected in the Smithsonian Museum in the United States."
"It seems that there are not many alexandrites left?" Liu Catkin asked.
Han Peacock nodded and said: "Up to now, the production of alexandrite has been extremely rare. The first is Brazil, and the second is the Ural in Russia. There is basically no alexandrite production."
Zhou Meiren said: "That's why there are people who fake it!"
"Even if alexandrite is not so precious, it must be faked by someone. After all, there are many color-changing gemstones similar to alexandrite." Han Kongque said.
Han Kongque started his career by being determined, and jewelry appraisal is a major category in the appraisal industry, so Han Kongque knows these things very well.
As Han Kongque knows, in addition to alexandrite, there are several color-changing gemstones similar to alexandrite in nature, such as spinel, garnet, sapphire, etc.
Andalusite is similar to alexandrite because of its strong pleochroism. The difference between alexandrite, spinel and garnet is that the latter two have no polarization and pleochroism, while alexandrite has color changes under different lights.
In addition, under the same light source, different directions of gems can also show different colors.
The difference between alexandrite, color-changing sapphire and andalusite is that the color-changing effect is different, and the refractive index is also significantly different. Sapphire appears blue-purple during the day and red at night, and the minimum refractive index is greater than the maximum value of alexandrite.
The "discoloration" occurs under the same light source and has a lower refractive index (1.62).
The factors that affect the price of alexandrite are mainly the discoloration effect, size, transparency and defects of the alexandrite.
Generally speaking, the more obvious the discoloration effect, such as emerald green during the day and bright red at night, the higher the price. (To be continued.)