Blue Smoke Bird Bird.

The freshly laid planks were miserated.

An irregularly shaped black stone, the size of a fist, jammed into the plank, and in the center of it, a transparent mass at least the size of a thumb shimmered in the sunlight.

Bi Fang knelt on the platform, leaning down, trying to buckle it, but when he was close to the foot, he was forced back by the heat it emitted.

The high temperature and the wooden planks turned into black charcoal ash all around, and the black hole continued to expand, and then Bi Fang saw that the transparent material in the center of the black stone was shrinking at a speed that was visible to the naked eye!

Before he could do any remedy, most of the wooden planks that had been smashed through were burned out of a large hole in the high temperature.

With a pop, the stone fell straight into the ocean, and then made a similar sound of hot metal and cold water colliding, a sound that made my ears calloused when I heard it in the Banna rainforest.

The white bubbles tumbled violently, and Bi Fang directly reached out and dragged the sinking stone, quickly scooped it up, and threw it on the wooden board.

The remaining water stains evaporated quickly, but the temperature of the stone was no longer so exaggerated, at least it did not burn a hole in the wooden plank, and the translucent stone on it was not there

Bi Fang scooped some seawater and poured it on the stone to speed up its cooling, and when it was fine, he took it to his hand and put it in the sun to study it carefully.

This thing...... Is it a diamond?

The audience never forgot the sentence that Bi Fang shouted just now, without him, if it is true, then this one is too big.

Even if it is just a little smaller, it is the size of half a finger, which is outrageous.

And why do diamonds fall from the sky?

[Is this a diamond?] 】

[Why doesn't it look like it?]

[Because you haven't cut it yet, right?] 】

[Purity, too low! ] 】

[When will Fang Shen come to a freehand pinched diamond]

Bi Fang watched it for a long time, and finally determined that this was really a diamond!

If you don't die, there will be a blessing?

Then it's a little higher.

Bi Fangmo looked at the diamond as if there were many impurities in it, and he was a little speechless.

"Volcanic eruptions do bring some precious metals to the surface, and the main component of diamonds is carbon, which is not uncommon on Earth."

"The formation of diamonds is different from the high pressure and low temperature of jadeite that I said before, it is carried out in a high temperature and high pressure environment, which is very rare on the surface of the earth, but the mantle layer is everywhere, which is very suitable for the formation of diamonds, so many diamonds are formed in the mantle layer."

[Volcanic eruptions seem to be in the mantle layer?] 】

[To be honest, I don't remember any of that]

[If I were a high school student, I would have to break down a few sentences now, but I'm a senior and only know how to eat three meals a day]

"Yes."

Bi Fang nodded.

"The formation of the crater is related to the structure of the earth, according to what we now know about the earth, the earth is like an onion, there are several layers in it, the core is the core, the core of the earth is not only the temperature above 5000 °C, the pressure is also very high, so it will press the molten object into a solid."

"Outside the core is the mantle, above which is the ring structure of rocks, and the rocks are the crustal layer."

"In these materials, the lithosphere and crust are cooler, while the core layer is warmer, so thermal convection forms in the mantle layer. The rock rings and crust inside the mantle are affected by thermal convection, which leads to disasters such as earthquakes. ”

"In addition to the extremely high temperature, the pressure of the mantle layer material is also large, and it is difficult for the general mantle layer material to break through the limits of the lithosphere and crust, but where the crust is weak, the mantle layer material will erupt to the surface due to the action of pressure, which is the formation of volcanic eruptions."

"Diamonds are formed in the mantle, and magma is also in the mantle, so after diamonds are formed, they are carried with the magma into the volcanic pipes, and when the magma condenses, it forms kimberlite containing diamonds."

"When a volcano erupts, the parent rock containing the diamonds is brought out, and the parent rock of the diamonds breaks up due to the action of the current, creating sedimentary sand deposits of diamonds, most of which have been the site of volcanic eruptions in the past."

After listening to Fang's explanation and the possible origin of the diamond, the audience was confused.

[Hey, tell me the location quickly, I'm going to pick up the diamond now!] 】

[Diamonds are just a hype, not worth anything at all, now we can even artificially make natural diamonds, not artificial diamonds, but artificially created "natural diamonds"]

[We all know about this, I brushed Brother Li's blood diamond three times]

[There is one thing to say, come to the truth, don't talk so much, just ask if you pick it up? ] 】

【Pick it up!】 Flash address! I'm picking it up! 】

The barrage was all about asking for the address, but Bi Fang kept looking at it, muttering in his mouth.

"I didn't expect to be so lucky to come across a flying diamond, to be honest, this probability is actually very small......"

I won't talk about it when I smashed it.

Diamonds are essentially carbon, and they will burn directly when they encounter a high temperature of more than 900 degrees, and the temperature of magma is usually between 700 and 1,002, and if it is mixed together, it is easy to burn it directly.

If it is not mixed, it is not in the middle of the eruption, and it cannot fly that far.

Unless it happens to be wrapped in a rock and flies out before it is thoroughly heated.

In fact, it was almost sublimated just now, but it happened to burn a hole in the wooden board, and it fell into the sea to accelerate the cooling.

Diamonds are not burned at high temperatures and with oxygen, which is burned red in the whole car, and then burned in contact with the oxygen on the outside.

The burning process of diamonds is that no matter how high the temperature is, it is still colorless and transparent, and the outer structure of carbon atoms slowly disappears when exposed to oxygen.

As for the result of heating in the absence of oxygen, the already unstable diamond structure is transformed into graphite.

So the diamond may have been larger at the beginning, and it wasn't completely encased in stone, otherwise it would have become a piece of graphite now.

It's just that the diamond is big, and after burning some of it, it still has the size of the first joint of the little finger, but the color is not very good, the clarity is quite bad, and it is full of impurities.

Onigiri Exploration Book

The level of value is actually relatively limited, and it is not bad to be a collectible, but it can't be sold for a high price.

[One thing to say, it's the first time I've heard that a volcano spews diamonds]

[Why don't I have such good luck]

[Let's have a volcanic surf, if you survive, you can too!] 】

[Bring my surfboard and let's go!] 】

Gray snow fell from the sky.

The sea was covered with a thin layer of gray mist, as if a layer of lime had been sprinkled on the clean water.

Ignoring the ridicule and praising of the audience returning to pick up diamonds, Bi Fang pulled the sails, picked up the oars and headed in the opposite direction.

He's not a Contra and doesn't have three lives.