"Bebe, what are those stones? Can I exchange points? ”

"Alas~ Such a money fan at such a young age, who did you learn from? Received 4 fast stones, which is equivalent to 5 points. To identify a stone, 1 point for a piece, do you want to identify? High-quality stone can be exchanged for a lot of points~"

Ding Xuecheng was just about to say, "If I learned from you, I have 4 points left, and you said that it costs 1 point to identify a stone, and it's not 'watching the food and eating'?" ”

As soon as he heard that stones could be exchanged for points, he forgot anything and shouted: "Quick, fast~ fast!" Identification! ”

The light curtain swept over 4 stones, and it only looked like it was 3 seconds in total, it seemed to be easy, and I couldn't help but complain: "Beibei, you're too picky, aren't you?" It's 4 points for this sweep, I'm clean and slippery, you're too good at calculating me! ”

"Knowledge is wealth, why don't you identify it yourself? In reality, the integrated chip of the computer is so small but so valuable, how much can a bunch of weeds be exchanged for? ”

"......, well, it's always you who have a point, tell me what kind of stone it is!"

"You have a good eye, and the 4 stones you choose are worth a lot, oh, it's worth points. Please look at the light curtain~"

Ding Xuecheng looked at the light curtain, there were pictures, words, and corresponding integral numbers.

Colorful coral: 10,000 points;

Tian Huangshi: 2500 points;

Mutton fat white jade: 15,000 points;

Obsidian: 5000 points.

"Bobo-san, can you exchange it?"

Ding Xuecheng saw that Bei Bei was like a fox who saw a chicken, and he was suspicious in his heart: "Bei Bei, what is the use of these stones?" Isn't it worth a lot of money? ”

"The answer needs points, you don't have points."

Ding Xuecheng was helpless for a while, looking at the four pictures on the light curtain and the exchange score behind it, he felt that the higher the score must be more valuable. He is going to exchange the one with the lowest score first, and with the points, Bei Bei will be able to give the answer.

"Beibei, the stone is so big, why are you so points?"

"Have you ever heard of gambling stones? Is a rough stone all jadeite? Are eggs full of yolks? Besides, a few thousand points are still less? ”

"Oh, I see, I'll change ...... No, redeem it later! Can these stones be brought to life? I need money to treat my grandparents, I'm short of money! ”

The "propeller" above Beibei's head slowed down by half a beat, and said slowly: "Not now!" Don't look at me so pitifully, the storage is also a deposit fee! If you don't have points, you can only throw the stones. ”

"Beibei, you are really excessive, you want points for everything, and you don't want to carry it on your back there, why do you want points?"

"Points are energy, otherwise if you consume it and can't replenish it, you can't run here, energy is conserved, you know?"

Ding Xuecheng hesitated, and finally his eyes lit up, and he said: "I'll exchange that piece of Tianhuang stone and obsidian first, and keep the colorful coral and mutton fat white jade first." ”

"Okay, 7500 points have been redeemed. Reminder: 1 point will be charged for each stone saved for each day, and it will be automatically deducted. ”

"Ahh If you want 2 points a day, wouldn't it all become yours if you save it in the end?! ”

"Saving costs energy, and you can exchange it for points right now."

"No! I'm going to take it out and sell it for my grandparents to heal! ”

"Sao Nian, it's not as simple as you think! Let's not talk about when it will be and how much you will spend to take it out; Who do you take it out and sell it to? What is the result of 'children holding money in the downtown area'? Bei Bei is your guide and will not harm you! Points are useful, more important than money in reality, as you will understand later. ”

"What's the use of points?"

"Before the time comes, you don't have permission, keep it secret!"

"I have points now, what are the uses of these kinds of stones, and how much are they worth in reality?"

"2 points for each stone's information, a total of 8 points."

"Okay~ Say it quickly!"

"There's too much information, let's look at the light curtain."

Corals are groups of polyps or fossilized bones that are made up of two parts, inorganic and organic, and the name comes from the Old Persian language. Common colors of inorganic corals range from light pink to deep red, orange, white, rarely black, and occasionally blue and purple. Organic () corals – corals composed almost entirely of organic matter, common species such as black coral and golden coral.

The polyp is a marine cylindrical coelenterate, food enters through the mouth, food residue is excreted from the mouth, it feeds on the small plankton in the ocean, and can absorb calcium and carbon dioxide from the seawater during its growth, and then secrete limestone, which becomes its own survival shell.

Origin of color: In the deep sea where red coral is distributed, there is a large amount of volcanic activity on the bottom of the sea, which provides a lot of volcanic ash material, which contains a certain amount of macro and trace elements. When a coral dies, it becomes a coral stone, which is a process of being replaced by a calcium carbonate substance, which is called calcification. In the process of calcification, the coral adsorbs various elements in the seawater, if the adsorbed elements are mainly iron, the color of the coral stone is red, if the adsorbed elements are mainly magnesium, and a little iron, then the color of the coral stone will be pink or pinkish. If the adsorbed element is mainly magnesium and there are almost no other impurities, then the color of the coral stone may be white, and the pure white coral gemstone in the deep sea is also a rare treasure.

Corals will have different colors according to the growth environment, most of them are red, colorful are rare, and colorful is the best of the best.

In reality, coral is a symbol of good luck and wealth, and has always been used to make precious crafts. Red coral, along with amber and pearls, is collectively known as organic gemstones. In some dynasties, in the ritual of the asahi period, the pearls made of red coral were often worn. Coral also has the effect of nourishing beauty and invigorating blood and brightening the eye, and is a precious medicinal material of traditional Chinese medicine.

Red coral culture has a long history in China, India, and Indian traditional culture, especially the Indian indigenous peoples and Chinese Tibetan and other nomadic peoples are more fond of red coral, and even use red coral as a sustenance for self-protection and prayer for the blessing of "God (Emperor)". According to historical records, the use of red coral by humans dates back to ancient Roman times. The ancient Romans believed that coral had the function of preventing disasters, giving wisdom, stopping bleeding and driving away heat, and some navigators believed that wearing red coral could prevent lightning and hurricanes, make the wind and waves calm, and make the journey safe! As a result, the Romans called it "red gold", which gave the red coral a mysterious color. Modern Westerners rank coral as one of the three major organic gemstones, along with pearls and amber, and are one of the "March birthstones" in the West.

Realistic reference price: 100 million.

"Wow, 100 million! How much is that? I only need 100,000 yuan to be enough, why can't I take it out? Ding Xuecheng was pleasantly surprised, and then he almost cried, he looked down with teary eyes.

Tianhuang stone is a famous and rare seal carving stone produced in Shoushan Village, Shoushan Township, Fujian Province, China, with a hardness of 2.3~3 degrees on the Mohs scale, and other stones produced in Shoushan are collectively called "Shoushan Stone". Tianhuang stone is a treasure in the Shoushan stone system, known as the "king of ten thousand stones" honorific title. Its color is warm and lovely, the texture is fine, and it has been regarded as the "king of printing stones" by the Indians since the Ming and Qing dynasties. For hundreds of years, Tian Huangshi has been loved by collectors, as the saying goes: "Gold is easy to obtain, Tian Huang is hard to find". Tian Huangshi because of its scarce production, and precious, has long been said to be three times the gold, and now in the auction market is even more hot, the highest price of 150,000 per gram! The most high-grade variety of Tianhuang stone is Tianhuang frozen stone.

The three elements of identifying Tian Huang are leather, lattice, and silk, three elements! The skin is a layer of stone skin formed naturally, and the grid is the cracks left by Tian Huang in the migration (generally have been naturally filled) is red or yellow, and the silk is a natural texture that looks like a cut fresh radish, only with these three elements can it be determined as Tian Huang stone!

Tian Huang Stone is a treasure in Shoushan Stone. Because it has the meaning of "Fu" (Fujian), "Shou" (Shoushan), "Tian" (wealth) and "Yellow" (the emperor's special color), it has the six virtues of fine, clean, moist, greasy, warm and condensing stone, so it is called "Emperor Stone", and has become the national stone dedicated to the Qing Dynasty. In history, the governor of Fujian in the Qing Dynasty carved the "three-chain chapter" with a whole piece of high-grade Tianhuang, and the Qianlong Emperor regarded it as a treasure, and the Qing family passed it down from generation to generation; When Emperor Xianfeng was dying, he gave Cixi a Tianhuang imperial seal; The last dynasty collapsed, and Pu Yi didn't want all the treasures, but only sewed the "three chain chapters" into the cotton clothes. As for folk legends, Tian Huangshi is a gem left in the world when the female disaster mends the sky, and it is said that it is changed by the phoenix bird egg, and it is also said that Tian Huangshi can drive away disasters and avoid evil, and those who hide Tian Huang can prolong life and so on.

Realistic reference price: 150 million.

Ding Xuecheng was a little numb, the most money he knew was a thick stack of 100 yuan bills, 100,000 yuan is a vague concept, which means a lot of money, and any more is almost the same.

"Beibei, this is not right, this piece of Tianhuang Stone is worth more than colorful coral, but the exchange points you give are the lowest, what's the matter?"

"It's very simple, if no one likes it, it's just a stone, worthless."

"......, too, that makes sense!"

Mutton fat white jade, also known as white jade, mutton fat jade, as the name suggests, is like mutton fat (commonly known as mutton fat) like jade. Modern gemologists use it to represent high-quality white jade, whose color is fat-white (can be slightly pale cyan, milky yellow, etc.), delicate and moisturizing texture, good oiliness, and a small amount of impurities such as stone flowers. Mutton fat white jade mainly contains tremolite, actinolite and epidote, which is like clotted fat, which is a type of nephrite. The ancient legend "white bi flawless" refers to white jade, mutton fat white jade belongs to the high-quality varieties of jade, the tremolite mineral content in mutton fat white jade is as high as 99%, the hardness is 6~6.5, second only to jadeite, toughness and wear resistance is the strongest in jade, into the soil for thousands of years, will not be all stained. The sub-jade of mutton fat white jade has been soaked in the underground water and soil of the wasteland or oasis under the Kunlun Mountains for millions of years, and the yield is scarce and the value is very high. Mutton fat white jade is crystal white, delicate and moisturizing with few flaws, "white as fat". It is characterized by being particularly delicate, bright and warm. The best mutton fat white jade is almost flawless, like the fat of the mutton that has just been cut, and the luster is like condensed fat.

Since ancient times, people have attached great importance to mutton fat white jade, which is the best in jade and is very precious. It not only symbolizes the gentlemanly character of "benevolence, righteousness, wisdom, courage and purity", but also symbolizes the secular emotions of "beauty, nobility, auspiciousness, gentleness and tranquility".

Its oily and delicate texture, the pure white of "color like cut fat", and the luster of "often dyed like fertilizer" conform to the implicit aesthetic concept of traditional Chinese culture, not ostentatious, not showy, not dazzling, with a kind of "essence and light" beauty, attracting Chinese for thousands of years. There is a mysterious charm in the beauty of mutton fat jade, how many people are intoxicated by it, and they do not regret it.

The ancients' various expositions on the "five virtues", "nine virtues" and "eleven virtues" of jade have raised the humanistic connotation of jade to a sacred level. The ancients corresponded the quality and color of jade to the character and cultural connotation, and now many collectors are also very serious in following the trend, and they are often easy to get hot-headed.

Realistic reference price: 8 million.

"The exchange points are so much higher than Tian Huangshi, and the price is so much, it seems that people's preferences determine the value of the items."

"Congratulations to Bobo for enlightening the values and rewarding 10 points, please continue to work hard~"

"Rewards are everywhere......"

Obsidian is a common black gemstone and volcanic crystal, also known as "dragon crystal, Shisheng stone", which belongs to a type of igneous rock, not crystal. Crystals are crystals, and obsidian is a naturally occurring silica that is usually dark in color.

From ancient times to the present, obsidian has been used as an evil spirit and amulet in the Han people. Obsidian is one of the gemstones of Buddhism to make Buddhist beads and handicrafts, in traditional Chinese folklore, obsidian is usually used in combination with Pixiu to make a variety of ornaments and ornaments, symbolizing friendly love and hope, used to wear or place at home, can attract wealth, transport, ward off evil spirits and town house, at present the effect of Pixiu is more obvious. Most of today's obsidian jewelry is found in Central America and North America, and Mexico's national stone is obsidian.

In addition, obsidian has the characteristics of glass, and the cross-section is like a shell fracture after being broken, which is very sharp. Used to make tools, weapons, masks, mirrors, and jewelry since prehistoric times, the very sharp fragments of this natural glass have been used to make cutting tools such as blades, arrowheads, and daggers, and modern people have used obsidian to make surgical scalpel blades.

In addition, obsidian is cheap, and when heated at a temperature of more than 1000 °C, due to the moisture contained inside, it will become white granular after burning, and the texture is loose and porous, and it is used as a soil conditioner in the United States.

Realistic reference price: 800,000.

"This 5,000-point obsidian is only 800,000, it's really blind for nothing!"

"Points are exchanged for practical value, not appreciation value."

"There is such a big green stone under the ground, it must be a treasure! Beibei, let's go down and collect it, and by the way, collect a few more black and white stones! ”

"I said no, there is only this time at this stage, don't be greedy, that's a bad thing!"

Ding Xuecheng didn't give up, and stretched out his little fist to beg Beibei: "Then can you cut a small piece of Tianhuangshi down, it's so big!" ”

"No, you can't take it out, you have to spend points to save."

"......, okay, let's exchange them for points~" Ding Xuecheng was a little disappointed, but Bei Bei was reasonable, and he understood the meaning.

"In the year of the sau, when the interruption continues, it will be chaotic, there will be a road before the car reaches the mountain, look at the point! 25,000 points have been redeemed, a total of 32,500 points, please continue to work hard, I am optimistic about you~"

Ding Xuecheng hurriedly checked his points, from 0 to 32502, and was very happy.

"They're almost done with observations, shall we go back to the classroom space?"

"Yes, the first part of this event is over, beckoning everyone to get ready to go back."