The positioning is successful, and the next step is to chisel out the spirit stone hidden in the rock. Lu Chen picked up the anchor axe, but instead of immediately chiseling the stone wall at the end of the mine, he took the anchor axe and measured it on the stone wall at the end of the mine.

After the spirit stone is conceived, the rocks around the spirit stone are washed by the spirit qi, and the hardness will be greater than that of ordinary rocks. And the closer you get to the spirit stone, the more terrifying the hardness of the rock becomes. After a low-grade spirit stone comes out, three circles of rock enveloping layers will be formed from the outside to the inside.

The first rock envelope is about the size of a basin, the second is about the size of a fist, the third is tightly wrapped around the spirit stones, the first two are like two hard turtle shells, and the third is like a layer of skin. After peeling off the three circles of rock enveloping in turn, it is a spirit stone. The Anchor Axe can be used to chisel out the entire piece of ore containing spirit stones from the stone wall of the mine.

Lu Chen did not use his true qi, but swung the anchor axe with the strength of his flesh. There was only a boom, and the anchor axe slammed into the first rock envelope, and a deafening bang erupted. Looking ahead, he saw that there was only a shallow trace left on the rock in front of him, and the force of the rebound shook Lu Chen's arm numb.

The five fingers holding the anchor axe pinched, and Lu Chen grinned for a while. Thinking back to the previous autumn wind when the first rock envelope was excavated, there was no loud noise. Lu Chen thought it was very easy, but when he really started to do it, he found that it was not what he thought at all. Autumn wind practice makes perfect, and every time he drops an axe, he avoids the first rock encirclement, and he is not skilled enough.

After adjusting the distance, Lu Chen swung the anchor axe again, this time one end of the anchor axe slammed heavily into the stone wall of the mine, but it did not explode with a loud bang. Lu Chen smiled slightly, pulled out the anchor axe, and continued to wield. After a few times, Lu Chen gradually became handy. After about a cup of tea, Lu Chen peeled off the first envelope of the basin from the stone wall of the mine.

Putting the anchor axe aside, Lu Chen picked up a large, short hammer and a chisel with a long chisel and chiseled it on the rocks the size of the basin. There was a loud noise, and pieces of rubble were stripped away. I don't know how long it has been, the surroundings are covered with gravel, and Lu Chen is holding a fist-sized stone in his hand.

The fist-sized stone is the second layer of rocks, the second layer is harder than the first, and it is impossible to chisel with a hammer and chisel, so you need to use a blade-like shovel to peel off the stone skin little by little. Lu Chen did not hesitate, and immediately used a blade-like shovel to peel it off. After a few moments, the fist-sized second layer of rock envelope was also stripped away, leaving only the last thin layer of stone skin.

It stands to reason that the closer the rock is to the spirit stone, the harder it becomes, but this last layer of stone skin is not the case, a thin layer of stone skin is like a black soft paper wrapped around the spirit stone, which can be cut with a fingernail. Lu Chen's fingertips stirred slightly, and the stone skin suddenly cracked, revealing one of the orange-yellow lower-grade fire attribute spirit stones. At the same time, a strong fire attribute aura emanated and filled the stone walls of the mine.

Lu Chen estimated that it took him more than an hour from the first step of positioning to completely peeling off the fire attribute spirit stone in front of him.

Estimating the time it took to mine the spirit stone for the first time, Lu Chen did not hesitate and immediately began to mine the second spirit stone.

About an hour passed, and Lu Chen's hand had another low-grade fire attribute spirit stone. After putting away the spirit stone, Lu Chen continued to mine the third spirit stone, and then the fourth and fifth spirit stones......

Time passed quickly, and when Lu Chen mined the sixth spirit stone, it was already six hours that had passed. Lu Chen felt a little weak, this was because his physical strength was consumed too much. Knowing this, Lu Chen did not continue to bury his head in mining spirit stones, but stopped, took out five blood pills from his arms and prepared to swallow them.

The Blood Pill is refined from the flesh and bone marrow of fierce beasts, which can be used to replenish the blood and qi lost by martial arts monks, and at the same time provide abundant blood and qi power for the cultivation of martial arts monks. Lu Chen was about to swallow the five blood pills into his abdomen, when he suddenly paused, and then took out three blood pills from his arms, and made eight blood pills with the previous five blood pills, clicked a few times, chewed them and swallowed them into his stomach.

Although the Blood Pill has no side effects, if it is swallowed in excess at one time, it will cause excessive qi and blood, and even martial arts monks will have nosebleeds. Generally, martial arts monks who have reached the inner realm can swallow up to two blood pills at a time. However, Lu Chen only had the Qi Sea Four Heavens but swallowed eight blood pills at one time, and the number of swallows was four times that of the martial arts monks in the ordinary realm! However, Lu Chen was not worried at all, he cultivated the Gluttonous Devouring Heaven Sutra and awakened forty little gluttons, and his physical body was extremely strong. Once the forty little gluttons devoured it with all their might, the qi and blood energy contained in the eight blood pills was not worth mentioning at all.

It didn't take long for streams of weak heat to rise from his abdomen, and finally merged into the blood around Lu Chen's body. Without bothering with the Blood Pill, Lu Chen frowned and pondered.

So far, he has mined a total of six fire attribute spirit stones. It took the longest time to mine the first spirit stone, and the time it took to mine the second spirit stone was shortened a lot, but there was still more than an hour. It wasn't until the fourth spirit stone was mined that the time it took was less than an hour. After that, although Lu Chen's operation of mining spirit stones was much more proficient, the time spent was not significantly shortened.

Lu Chen realized that the time it took to mine a spirit stone by himself had been compressed to the limit, and it might be difficult to improve in a short period of time. And even if his own operation reaches proficiency later, the time to mine a spirit stone will definitely exceed half an hour. Jiang Feiyun was willing to let himself join the mining team, and Lu Chen didn't want to drag the entire mining team back. And ten spirit stones have to be mined in one day, and when the ten spirit stones are mined, the cultivation time left for Lu Chen will be very short.

Thinking of this, Lu Chen frowned slightly, it was not a way to go on like this at all. Originally, Lu Chen thought that there might be some new discoveries after trying to mine spirit stones, but the result was no different.

It is almost impossible to mine ten spirit stones in one day, and at the same time try to minimize the time it takes to mine spirit stones!

Time passed little by little, and although Lu Chen had no clue, he was not discouraged. Chihuomen has stood in Qingyun County for an unknown number of years, and the mine hall does not know how many disciples have come and gone, Lu Chen knows that he will definitely not be the first person to encounter and want to solve this problem. If this problem could be solved so easily, there would be no need to think about it at this time. As soon as he thought of this, Lu Chen's eyes flashed with a bright light. The more difficult the problem, the more excited Lu Chen became.

After another quarter of an hour, Lu Chen seemed to suddenly think of something, and stood up suddenly. How could you forget this! I had been mining spirit stones with the power of my physical body before, but I was a martial arts cultivator, cultivating true qi and condensing the sea of qi.

And when Qiu Feng mined the spirit stone before, he didn't stop the operation of his true qi from beginning to end, and the physical strength only played an auxiliary role, which showed that the true qi used the mining of the spirit stone more! If True Qi is used, the speed of mining should be increased by a notch.

As soon as he thought of it, Lu Chen turned around and walked to the end of the mine, and then pressed one hand on the stone wall at the end of the mine, and the Divine Sword Qi Cultivation Technique slowly worked. Soon, Lu Chen located a spirit stone. Picking up the anchor axe, a wisp of true qi rushed out of the sea of qi, followed the meridians in the body, and finally poured into the anchor axe along the arm.

With a snort, one end of the anchor axe completely sank into the rock, and at this moment, the stone wall of the mine in front of Lu Chen seemed to be made of tofu blocks, and it was easily chiseled.

Seeing this scene, Lu Chen's eyes were full of fire. Wisps of true qi were finally poured into the anchor axe along the meridians, and soon the first layer of rock enveloping the size of the basin was cut off. Immediately, Lu Chen switched to a hammer and a chisel, wisps of true qi continued to be infused, and pieces of gravel flew up indiscriminately, and soon Lu Chen's side was covered with gravel, and a fist-sized stone appeared in Lu Chen's hand. Without the slightest pause, Lu Chen picked up the blade-like shovel and slashed it. Not long after, the nails were slightly picked, and a fire attribute spirit stone broke out of the skin.

The seventh spirit stone was freshly baked!Lu Chen estimated that it only took a quarter of an hour to mine the seventh fire attribute spirit stone. Continuing to mine spirit stones with true qi, ten spirit stones only took about twelve quarters of an hour. And an hour has eight quarters of an hour, and if you want to mine ten spirit stones, you only need less than two hours. Of course, this is if the True Qi can continue to operate. If you count the time to recover your true qi, the time it will take will definitely be longer. However, even so, it would not take more than three hours to mine ten spirit stones by himself.

The seemingly impossible problem was solved like this, and Lu Chen felt incredulous. Suddenly, Lu Chen thought of something again. Qiu Feng obviously also used True Qi to mine spirit stones, but the time it took was similar to when Lu Chen used his physical strength. It's also true gas mining, and the gap shouldn't be so big.

True Qi! Or Gongfa! Thinking about it slightly, Lu Chen realized where the problem might be.

Although Qiu Feng and he used both True Qi, the effect would naturally be different if the True Qi was different. Martial arts monks spit out and refine the aura of heaven and earth and integrate it into their own qi sea, and the aura of heaven and earth is the same, and it stands to reason that the true qi will be the same. In fact, only those who have an innate spiritual root can become a martial arts monk, and everyone's innate spiritual root is very different. Even if it is a pair of twin bloodlines, there will be differences in their respective innate spiritual roots.

The first step of cultivation is to sense the innate spiritual root, then nourish and strengthen the innate spiritual root, and then condense the sea of qi. As soon as the sea of qi becomes a martial monk, he can absorb and refine the aura of heaven and earth, and absorb the aura of heaven and earth into the sea of qi for his own use. This is actually to make the aura of heaven and earth become a part of itself! Maybe the general attributes of the true qi of the two martial arts monks are the same, but there is definitely a qualitative difference between the different true qi!

Then there is the exercises. There are thousands of exercises in the world, and naturally it is impossible for every exercise to have the same effect. Different exercises also have qualitative differences in the refining of heaven and earth aura. Good exercises can refine the spiritual energy of heaven and earth into purer true qi! In addition, the results of individual comprehension of the exercises are even more varied.

Whether it's the exercises, or one's own true qi, or both. Lu Chen's brows furrowed slightly, but he couldn't figure it out for a while.