Half an hour later, Tang Yanbing calculated that he should be about six or seven hundred meters deep at this time. At this depth, the soil is almost invisible and only rocks remain.
This was his first time mining. He had no experience and didn’t know where to start, so he had to dig deeper.
After advancing about three hundred meters again, the earth drilling vehicle seemed to hit something hard and stopped with a "thud".
Tang Yanbing glanced hard enough and found that what was in front of him was a red boulder. The surface of the boulder was a little yellow, but the inside was crystal clear, like crystal.
At this point, Tang Yanbing felt that he was almost there. If he dug further, he was really worried that he would come out from the other side of the mountain.
After driving the earth drilling vehicle back ten meters, Tang Yanbing walked to the boulder and observed it carefully.
This stone is very hard, otherwise it would not be able to force his underground drilling vehicle to stop. This was the first conclusion Tang Yanbing came to. The second was that the stone was very big. Tang Yanbing didn't know how big it was, but it was definitely bigger than he imagined.
After thinking for a while, Tang Yanbing murmured: "Well, since you are blocking my way, let's start with you."
After saying that, the door to the Space of the Dead opened behind Tang Yanbing, and then Tang Yanbing began to chant a strange spell.
Not long after, a neat row of skeletons, each holding a skull in hand, walked out of the space of the dead in an orderly manner.
These skeletons all have similar characteristics, with two black flames burning in their empty eyes. In addition, they are in this dark passage where they can't see their fingers, which gives people an inexplicable eerie feeling.
The spacious passage became congested in the blink of an eye, but these skeletons seemed to be very regular. There was no disorder after they came out. Instead, they seemed to be well-distributed. Everyone held a head and walked along this area. Digging began at the edge of the boulder.
Those who could not occupy the space brought baskets and shovels and began to transport the excavated rocks and part of the soil into the space of the dead.
The clanking sound filled the entire passage. Tang Yanbing was not idle either, and took out soul-guiding lamps one by one and arranged them above the passage.
Tang Yanbing felt that these skeleton soldiers were worth a lot in exchange for a piece of 100,000-year-old soul bone that was useless to him. At least now he has these skeleton soldiers who will never feel tired to mine for him. All Tang Yanbing has to do is enjoy the benefits.
After arranging the soul guide lamp, Tang Yanbing expanded the door to the space of the dead to be as big as the passage, and then entered the space of the dead.
Frames of skeleton soldiers transported baskets of rocks into the Space of the Dead. Tang Yanbing was well prepared and had already dug several huge holes in the space with Storm Crimson. Some were responsible for hoarding the excavated ores, and some were responsible for Bury the excavated rock and soil.
Beside these pits, nine bone dragons whose size is almost the same as that of Storm Red are hovering there, waiting for Tang Yanbing's orders at any time. Below are tens of thousands of skeleton soldiers, some holding irons in their hands, and some They hold shovels in their hands, and some hold a basket, ready for action at any time. This scene is truly majestic!
Due to the small space, there are only more than a hundred skeleton soldiers going out to dig, but it won't take long after they expand the space, more skeleton soldiers will be able to pour in, and the digging speed will become faster and faster.
These skeleton soldiers are not controlled by Tang Yanbing alone, but by him and eight clones.
If it were placed at other times, such as in battle, Tang Yanbing only needs one person to control it, but the situation is obviously different at this time. Mining is not like fighting. After you give it an instruction, it will Just do it. Mining requires order. Only by maintaining good order can it be carried out with the highest efficiency.
The advance troops were under Tang Yanbing's own command, so after entering the space of the dead, he just stood at the entrance of the passage, so that he could control both the outside and the inside.
Half an hour later, when Tang Yanbing walked out of the Space of the Dead to check the progress of the mining, the mine outside had been expanded to a diameter of about twenty meters, and the huge stone finally revealed its body.
It was an irregular round boulder about five meters in diameter. It had been lifted up by dozens of skeleton soldiers and was ready to be transported to the space of the dead.
Tang Yanbing was not in a hurry to find out what kind of mineral this boulder was. Instead, he expanded the space of the undead. Then his clone drove the storm red, stretched out his hand from the space of the undead, and pulled the boulder into the space of the undead. .
Tang Yanbing did not go in to check. The clone inside would naturally analyze what kind of mineral this boulder was, and what he had to do now was to continue digging.
Even though the skeleton soldiers were all just empty skeletons, they were unambiguous in their work. They were all as if they had been injected with chicken blood. They were tireless and made Tang Yanbing want them to rest for a while. I did it impulsively.
Although not many minerals can be seen yet, Tang Yanbing does not think that there will be no mines here. As long as you dig patiently, you will surely gain unexpected results.
As the mine grew larger, more and more skeleton soldiers poured into it, and their speed became faster and faster.
Half an hour later, the space in the mine had been expanded to thirty meters in diameter. As a giant porter, the bone dragon finally climbed out of the space of the dead carrying a huge basket on his back. Why crawl? Because the space in the mine at this time was not enough for them to fly, they had to crawl out and carry them.
The first mineral discovered was the boulder. Tang Yanbing originally thought there would be others, but after the boulder was excavated, no minerals like it were found.
The first mineral found behind the boulder was the relatively rare gold crystal. This is one of the precious metals with extremely high hardness. At the same time, it can also be used as a material for carving the soul guidance core array.
What was discovered after the gold crystal was lapis lazuli. Lazuli is a relatively common metal. Its hardness is much higher than that of ordinary metals, but its weight is only half of that of a metal of the same volume. Many parts of Storm Red's body are made of lapis lazuli.
The mineral discovered after these two minerals is called heavy iron, which is also one of the rare metals. However, due to its heavy nature, there are not many soul guides made with it.
As the name suggests, heavy iron is very heavy. With the same volume, its weight is ten times that of ordinary metal. Although this is its shortcoming, its advantage is that its density is extremely high and its hardness is even higher than that of mainland China. It is at the top of all metal rankings. Generally, the soul guides made with it are large, immovable soul guides.