We were dumbfounded, dumbfounded, and shocked, it turned out that in front of us were a series of glittering yellow and clear emitting a charming light of large radiant and various, different shapes, brilliant gold sculptures, some have been completed, lifelike standing there, some are still in the process of processing, missing half an arm, or half a leg, like a broken arm of Venus, rushing to the face with a strong sense of art, and these large like Roman and Egyptian carvings next to naturally there are two large piles of naturally scattered on one side of the original state of yellow cancan ore, I don't know that this old Mr. Wang Dalong has traveled thousands of miles, where did it come from. Of course, all kinds of sculptures are naturally indispensable to Mr. Wang Dalong's super-large close-up, it seems that he is also a narcissistic person, but it is estimated that most of them are lonely and boring, and the ancient sages are lonely, so they are free to play here, I can't help but be glad that there is an inseparable Xiaofei, so that I don't feel so lonely, so that I no longer feel an island, otherwise like him, it is really lonely and terrible.

Brother Yixiu's eyes widened in surprise: "Oh my God, so many sculptures, won't they all be gold? It's not true, you must know that gold, a precious metal, is the nobility in metal, but it is incomparably rare, special and precious, since ancient times, it has been regarded as the head of hardware, has the title of the king of metals, enjoys a reputation that other metals cannot match, its prominent position is almost eternal, it is a symbol of wealth and luxury." But because of its small quantity, it's unbelievable how so much gold suddenly appeared here?"

Wang Gongzi said excitedly: "Is this the legendary stone into alchemy, it's really good, I finally witnessed it with my own eyes today, you must know that the emperors of all dynasties, starting from Qin Shi Huang, have fantasized that the emperor will always be there, the dragon body will last forever, the day will think about the elixir, and the night will make gold and silver dreams." So all kinds of immortals made alchemy pills, and they lived in the mountains and wilderness, living a life like immortals beyond the world. Legend has it that Jingyang County in the Jin Dynasty once had a county order with profound Taoism, called Xu Xun. He can cast talismans and practice to exorcise ghosts and cure diseases for people, and when the people saw him as a god like an immortal, they called him Xu Zhenjun. Once, due to the bad annual income, the peasants could not afford to pay their taxes. Xu Xun asked everyone to pick up the stones, and then cast a spell, using a finger to make the stones turn into gold. The gold made up for the arrears of taxes. The idiom turning stones into gold also comes from this. Song's Hu Zai's "Tiaoxi Yuyin Cong Words Later Collection: Meng Haoran" also wrote that the poems are based on one word, which is naturally extraordinary, like a grain of elixir, and a stone into gold. "There is also the fourth and fourth chapter of "Journey to the West" by Lizhou Publishing and Book Company - that master, calling for wind and rain, only between the palms; Therefore, our alchemists use dansha (mercury sulfide) and realgar (arsenic sulfide) as raw materials to open a furnace for smelting. Attempts to make an elixir, and then turn stones into gold, taking the elixir or using gold and silver as a dish, all make people immortal from old age and death. Westerners also imitated dark chambers or caves, and lived alone and widowed to devote themselves to alchemy. One or two thousand years have passed, and there is no shortage of people who have died in the elixir. Jin Dan disappeared in vain, and I didn't expect that we would finally get a glimpse of this isolated underground, it was so exciting, it was so breathtaking. Therefore, among the countless magic techniques in China, the alchemy of turning stones into stones has always been the most attractive and the most fantastical one. Although we yearn for it, but we know that it is impossible, I didn't expect to visit here today, only to find that this ancient magic actually exists, it is actually true, it is really happy. ”

Xiao Fei whispered to me disapprerovingly: "This is obviously not a little bit of gold, in fact, ancient Chinese and foreign alchemists have been engaged in chemical experiments all their lives, and all of them have achieved nothing, the reason is very simple, because they violate the laws of science." They dreamed of changing the properties of base metals with simple legislation such as sublimation, turning lead, copper, iron, and mercury into precious gold and silver. As everyone knows, it is not possible to change the properties of the elements by general chemical legislation. A chemical element is a general term for the same kind of atom with the same number of nuclear charges, and atoms are the smallest particles in the classical variation. In a chemical reaction, a molecule can be divided into atoms, but atoms cannot be divided again. However, with the development of science, today "turning stones into gold" has been realized. In 1919, Rutherford in England bombarded nitrogen with α particles, turning nitrogen into oxygen. In 1941, scientists used an atomic accelerator to turn mercury into gold - artificial gold fermium (element 100). In 1980, American scientists bombarded bismuth metal targets at high speed with neon and carbon atoms, and obtained a trace amount of gold the size of a needle. In addition, Japanese scientist Takaaki Matsumoto and others use the nuclear transformation technology of matter, and when high-energy γ-ray irradiates the nucleus of a substance, the nucleus loses one neutron and becomes another atomic number of matter. Mercury has an atomic order of 80, and when high-energy γ-rays irradiate its nucleus, it loses a neutron and becomes gold with atomic number 79. In their experiments, they irradiated mercury with a radius of 50 centimeters, a thickness of 12 centimeters, and weighed 1.34 tons, after being irradiated with γ-rays of 50,000,000 electron volts for 70 days, and then cooled for six years to obtain 74 kilograms of gold and 180 kilograms of platinum (which we often call "white gold"). However, the cost of gold obtained in this way is about 200,000 yen (equivalent to 16,000 yuan) per gram, which is far more than the natural price, so it is not yet meaningful. They are currently further researching alchemy furnaces consisting of electron accelerators and breeder furnaces to obtain cheap gold. ”

Garfield said happily, "Let's make a note of the place, and when the time comes, we will move all these sculptures back, and then we will move these stones back, and then we will have to pay special attention to the yellow stones we see on the road, and maybe we can refine the gold ore." ”

Xiao Fei shook his head and said, "There is a pile of gold ore in these two piles that is not real, because the vast majority of gold in nature exists in the form of pure gold, and the content is not very large. Not all the yellow stones have gold in them, and most of the yellow stones we see are fake gold ores such as fool's gold. Because pyrite, i.e. iron sulfide. Pyrite is often mistaken for gold because of its light brass color and bright metallic luster, so it is also known as "fool's gold". The gold in real gold ore is mostly scattered in small particles or strips on the inside or outside of the ore. “

Garfield was puzzled and said, "Oh, I see, how do you identify it?"

Xiao Fei said unhurriedly: "This is very simple, and it is not difficult to identify: it is burned with fire, real gold is not afraid of fire, and it is still yellow after burning." Or take the ore and scratch it on the slate, the gold is soft and easy to produce yellow scratches, while the scratches of fool's gold are gray, and the denser and larger the distribution of gold particles in it, the higher the content. It's clear at a glance. By the way, you can also use your hands to shake it, and the feeling is particularly heavy is gold, because the specific gravity of natural gold is 15.6-18.3, while pyrite is only 4.9-5.2. ”

I was puzzled and said, "Then why did this old man Wang still carry these useless pyrite back thousands of miles away, and I don't know how he transported so much ore? ”

Xiao Fei continued to whisper to me: "But I was born to be useful, and this pyrite is also useful, pyrite is the disulfide of iron. Pure pyrite contains 46.67% iron and 53.33% sulfur. Pyrite is generally used as a raw material for the production of sulfur and sulphuric acid, rather than as a raw material for refining iron, because there is better iron ore for refining iron. Pyrite is widely distributed and can be found in many ores and rocks, including coal. It is generally a brass cube. When pyrite weathers, it becomes limonite or yellow potash. Pyrite can be formed by magmatic junction, hot water solution or sublimation, and can also be formed in igneous and sedimentary rocks. Industrially, pyrite is used as a feedstock for the generation of sulfur and sulfur dioxide.

The chemical composition of pyrite is FeS2, which is the main mineral raw material for the extraction of sulfur and the manufacture of sulfuric acid. Its crystals are equiaxed sulfide minerals. The composition usually contains cobalt, nickel and selenium, and has a NaCl-type crystal structure. There are often intact crystal shapes, which are cubes, octahedrals, pentagonal dodecahedrons and their aggregates. There are fringes parallel to the crystal edges on the crystal surface of the cube, and the fringes on each crystal plane are perpendicular to each other. The aggregates are dense lumpy, granular, or nodular. Light brass color, streaks greenish-black, strong metallic luster, opaque, no cleavage, jagged fracture, so the Mohs hardness is larger, up to 6-6.5, even a knife can not be carved. The specific gravity is 4.9-5.2. It is easy to weatherize into limonite under surface conditions.

Pyrite is the most widely distributed sulphide mineral and can be found in all types of rocks. Pyrite is the main raw material for the extraction of sulfur and the manufacture of sulphuric acid, and it is also a very cheap ancient gemstone. In the Victorian era of England, people liked to decorate this gemstone with special form and ornamental value. In addition to being used for polishing gemstones, it can also be used as a base for jewelry, jade and other handicrafts, but as for how he brought these natural stones all the way here, this complex and imaginative question is so difficult that I don't know, you should ask him himself. ”

Xiaofei and I were whispering and continuing to discuss each other, and Hu Jiaojiao next to her was already screaming happily, and then she couldn't wait to trot all the way, striding to the front of those golden sculptures, impatiently greedy left touch, right touch, while touching with love, while smiling and saying: "Oh my God, there is a lot of gold here, I'm going to get rich." She hurriedly squatted down from the horse, and then lifted up with all her might, but unfortunately the sculpture still did not move, and a few people could not wait to run over to help her, but the sculpture was too heavy, it was still useless, she sighed sullenly, and said quietly: "It's a pity that I can't move, if I can barely move back, how many luxury carriages I have to buy, how many clothes of fine silk fabrics! Seeing her helpless and impatient, we all couldn't help but laugh.

Xiao Fei was also puzzled and said: "Yes, how did Mr. Wang Dalong find so much gold, you know, although the content of gold in the earth's crust is not too small, it is very scattered. To date, the largest natural gold nugget found weighs only 112 kilograms, while the largest natural silver nugget found weighs 13.5 tons, and the amount of silver in the earth's crust is only twice as much as gold, and the largest natural copper nugget weighs 420 tons. In nature, gold is often found in gravel in granular form or dispersed in rocks in the form of fine particles. One of the most malleable of metals. 1 gram of gold can be drawn into 4000 meters of gold wire. Gold can also be hammered into gold leaf much thinner than paper, 1 gram of gold can be hammered into a thin slice of 0.5 square meters, and the content of gold in the earth's crust is about 5 parts per 10 billion. Gold is heavy. 1 cubic meter of water weighs only 1 ton, but the same volume of gold weighs 19.3 tons! I estimate that Mr. Wang Dalong did not use the original method to take advantage of the disparity in the specific gravity of gold and sand, crush the ore into the size of sand grains, and simply wash the gold-containing sand with water to separate the gold, and the heavy gold remained, that is, the so-called gold panning in the sand, this yield is too low, but the water with cyanide can dissolve gold, that is, the generation of water-soluble NaAu(CN)2, so 0.03-0.08% is used The sodium cyanide solution washes the gold sand to dissolve the gold, and then treats the resulting solution with zinc, which replaces the gold and makes gold. This chemical method of panning for gold in the sand greatly improves the efficiency of gold panning. However, cyanide is highly toxic, so he still needs to be careful, so even though the sand contains 3 parts per million or the rock contains 1 part per 100,000 gold, it is also a gold mine worth mining, so he has a steady stream of gold at his disposal. Then he used the aqua regia method of extracting gold - put the gold into a beaker and add 3-4 times the amount of aqua regia to dissolve, but pay attention to the ratio, such as aqua regia:hydrochloric acid nitric acid volume ratio of 3:1. After dissolving, the gold-containing aqua regia is filtered out of impurities, a clean aqua regia solution is obtained, and it is concentrated and evaporated to a viscous state, dropwise hydrochloric acid is added to drive nitrate, and the nitrate is no longer yellow smoke when hydrochloric acid is added, and then ferrous sulfate can be added to reduce, the precipitate is reddish-brown gold powder, and the gold powder is washed and put into the crucible and melted at high temperature with a gasoline musket or gas musket, so that you can get gold nuggets.

And in our modern society, turning stones into gold has really become a fact, because foreign scientists have inadvertently discovered a bacterium that can convert ions into gold nanoparticles, and this discovery can be applied to gold smelting. Scientists from McMaster University in Hamilton, Canada, conducted a very careful and systematic study of a bacterium called Delft acid-eating bacteria in gold solution, and they observed that the bacteria were surrounded by a black ring-shaped substance, and after careful identification, this black substance was gold nanoparticles.

Scientists say this is actually a defense mechanism of the bacteria, because the gold ions are toxic to the Delft acid-eating bacteria, so the bacteria convert the gold ions into gold nanoparticles, thus preventing them from entering the cell wall. But if researchers isolate the genetic chemicals in bacteria that are responsible for converting gold ions, the bacteria will not be able to produce gold nanorings, so scientists have successfully converted gold nanoparticles into gold solutions using the isolated genetic chemicals. Frank Lees, an environmental microbiologist at the University of Adelaide in Australia, said the genetic chemicals contained in Delft acid-eating bacteria could be used to extract gold from wastewater from gold mining. The soil contains a lot of toxic gold chloride, but because its gold content is very small, and it is not easy to refine, so it has no practical value, they have been looking for a microbial alchemy method, trying to refine this part of the gold, until recently we found that there are some small gold particles in the soil containing a lot of gold chloride, through microscopic observation actually found that there are part of the cell wall on it. It was in this situation that the two professors, Kashefi and Brown, began to explore, and finally discovered this bacterium, they feed on the gold chloride in the soil, and they only eat the poisonous part of it, and finally spit out the gold, and the gold refined by them is as pure as 99.9%, which is very high, almost the purest of the natural gold nuggets found so far. So I seriously suspect that Mr. Wang Dalong brought this newly discovered and particularly commercially valuable bacteria from modern society to ancient times, and there are many strange bottles and jars outside, so there are so many gold sculptures here. "Xiao Fei said so eloquently, gushing endlessly, his mouth is like a hanging river, and his breath runs through Changhong, I admire it so much that he throws himself to the ground, like the water of the Yellow River, gushing endlessly. sighed that he was not a soldier for three days, and he was impressed, he was really knowledgeable and knowledgeable, but I suddenly remembered that he was a professional and technical personnel and backbone member of the big thief group, no wonder he was so professional, and I didn't admire him so much.