There is no doubt that in terms of the fire strength of the igneous stone, it is impossible to melt the rock powder containing the pyrocrystalline sand, that is, by the method of high-temperature smelting, under the current conditions, the pyrocrystalline sand cannot be separated at all.

Deciding to temporarily give up the separation and extraction of fire crystal sand does not mean that it completely gives up the collection and collection, there are three small spaces in his body, such as the life gate, the sea of qi and the sea of knowledge, and now there are not many materials stored in the small space, and there is still a lot of space left, so he can do his best to collect more fire crystal sand ore, reserve it in three small spaces, and then separate and extract it when there are conditions.

Taking out the mountain chiseling axe, the spirit Qi used his heavenly vision to slowly explore and patrol along the cave wall.

According to Zhi Lingqi's estimation, it should be no problem to just refine and collect the fire crystal sand concentrate, but with only the three small spaces in his body, it is impossible to take all the fire crystal sand ore in the cave here.

Therefore, he needs to recover the raw ore with a higher proportion of pyrosis content, how to identify the level of pyrotechnic sand content in the raw ore? However, there is no need for the Supreme Spirit to use the Heavenly Eye Sense to investigate them one by one, just to sense which area has the highest mineral temperature of the rocks.

According to the special properties of pyrithal sand, where the rock temperature is high, the proportion of pyrocytic sand in the rock must be very high, on the contrary, the proportion of pyrocrystalline sand will never be high, and the higher the content of pyrocrystalline sand, the more valuable it is.

After a week of Lingqi exploration, it was finally determined that far away from the entrance of Kanpo, the bottom of the deepest cave here, the rock temperature is the highest, and of course it is the most valuable area for mining.

Without the slightest hesitation, Zhi Lingqi immediately came to the rock wall at the bottom of the cave, and with a strong swing of the mountain axe, he slashed at the fire crystal sand rock.

The hardness of the rock ore is very high, but it is still far less hard and sharp than the chisel axe, otherwise when he left the cave for the first time, it would not have been possible to use the chisel axe to easily cut and polish the stone axe, and then let the spirit inspire the existing stone axe of fire crystal sand.

Although the hardness of the original ore of fire crystal sand is far less than that of the chiseling axe, it is much higher than that of the lower grade spirit stone mine, so the difficulty of mining the fire crystal sand ore with the chisel axe is basically the same as that of mining the lower grade spirit stone ore with a stone axe.

The mining of the original ore of fire crystal sand by Zhilingqi is the same as the previous mining of the lower grade spirit stone mine, which is divided by imitating the size of the middle grade spirit stone and the upper grade spirit stone left in the small tribe treasury, so its mining speed is also roughly the same as the speed of mining the spirit stone mine.

Of course, for the size and shape of the division of the original ore of the fire crystal sand, there is no rule and unity like the division of the spirit stone.

Zhi Lingqi worked tirelessly, day and night, and when his physical strength and spiritual energy were exhausted, he sat down to breathe and recovered, and once the pranayama was restored, he immediately continued to devote himself to the crazy mining work.

Fortunately, what he possessed was the body of the atavistic chaotic spiritual vein, this kind of divine body, although in today's environment of lack of spiritual energy, the cultivation progress was as slow as a snail crawling, but for the recovery of pranayama, compared to other cultivators, it was extremely fast.

Even so, it took two full months for Zhi Lingqi to mine, and the amount of raw ore mined was equal to the number of lower-grade spirit stones mined before, and the time saved during that time was almost half a month.

Considering that there was still a lot of room for storage in his three small spaces, Ling Qi did not stop mining, but still continued to mine into a deeper level, for such a rare refining material, of course, the more the merrier.

"Hmmm! Is there going to be a big cloud of fire crystal sand? Or is there something good about to appear? After about five or six days of digging and mining, Zhi Lingqi suddenly felt that the temperature of the rock wall in front of him had risen a lot, and he secretly guessed in his heart.

Well, whatever it is, dig it out and take a look! Zhi Lingqi was in a good mood, and his mood was also a lot higher, so he couldn't help but speed up the mining speed again, and struggled to slash inside.

It's not that he acted recklessly and didn't know how to be cautious and careful not to damage the treasure, but he knew that there was still a certain distance between the treasure and the current stone wall, and if the distance was very close, there would inevitably be a sharp rise in the temperature of the mine again.

Under his hard slashing, another five hours passed, and at this time, the temperature of the rock wall rose sharply again, and Zhi Lingqi changed the way of slashing, and instead used the chiseling axe to cut lightly, slowly digging towards the source of the heat flow.

An hour later, Zhi Lingqi was surprised to find that there was a small ball of light faintly revealing from the original ore of the fire crystal sand rock in front of him, and he suppressed his excitement and slowly used a chisel axe to scrape the original ore layer that covered the light.

After a short while, a small piece of bright purple square crystal the size of an index finger appeared in front of Zhi Lingqi's eyes, and the whole crystal body emitted bursts of heat, although it would not burn him, but it gave him a feeling of burning the sky and destroying the earth.

"Hahahaha! It was actually the fire source spirit" Zhi Lingqi was overjoyed, and actually grabbed the stone axe and kissed it wildly, indeed, if there was no abnormal performance of the stone axe in mining the spirit stone, Zhi Lingqi would not have discovered the existence of the fire crystal sand so quickly, let alone returned to the cave so early to refine and harvest the fire crystal sand, of course, he would not have gotten such a big harvest, a surprising harvest.

Zhilingqi was not only happy to get the fire source spirit, he thought that with the fire source spirit, he could easily refine and harvest the fire crystal sand, because he knew that there was a formation called the Four Elephants Refining Array, which was the formation of the exclusive smelting smelter material.

This kind of formation not only needs to use no less than high-grade spirit stones as the formation eye, but the most important thing is that it needs to use the fire refining materials of the best fire attribute as the formation center, so as to urge the Four Elephants Refining Array to smelt items and refine some items that cannot be melted normally.

As for the attribute level of the fire source spirit, it surpassed the level of other top-grade fire attribute fire refining materials, so Zhi Lingqi firmly believed that as long as he used the fire source spirit as the center of the formation and arranged the four-elephant refining array, he could easily melt the rock without smashing the original fire crystal sand ore at all, and quickly separate and refine the pure fire crystal sand from the original rock ore.

Zhi Lingqi adjusted for a moment, and quickly took out sixteen high-grade spirit stones from his small space in the sea of qi, arranged the directions and requirements according to the Four Elephants Refining Formation Formation, and placed them one by one on the ground in front of him.

After arranging the Four Elephants Refining Array Eye, Zhi Lingqi did not pause at all, and then took the Fire Source Spirit and placed it in the center of the Four Elephants Refining Array.

Once the four-elephant refining array is activated, it can also form a special heating smelting group similar to the effect of a ding furnace on the center of the formation in the inner center of the formation, and can automatically control the temperature around the smelting object to speed up the smelting speed.

This formation, as long as it is successfully activated, can automatically gather the fire aura between heaven and earth, and through the increase of the fire source spirit, it will be provided to the smelting group in the array, which will not only not consume the energy of the fire source spirit, but also reduce its own spiritual energy consumption.

Although the use of the Four Elephants Refining Array to smelt items is not as intuitive as the Ding Furnace smelting, the effect of its smelting is not weaker than the effect of using the Ding Furnace to smelt the original ore powder of fire crystal sand before, and even in terms of convenience, it is slightly higher.

Using the Four Elephants Fusion Array to smelt magic weapons or materials, due to the precise control and transparency effect of the formation, the visual barrier of the furnace ding is removed, and the impact of the furnace body's high-temperature radiation on its soul body is reduced.

After arranging the formation, the spiritual energy of the right hand of the Zhiling Qi gushed out, wrapped up about twenty kilograms of fire crystal sand raw ore blocks, and moved it about twenty centimeters above the fire source spirit crystal in the center of the array, and then slowly stretched out one palm of his left hand.

A trace of purple fire immediately appeared, and then shot towards the fire source spirit in the center of the formation, and in an instant, the formation smelting function was activated, and the fire crystal sand raw ore block was also wrapped in the purple formation smelting group, and the temperature quickly increased.

In a short time, the color of the stone changed from dark cherry red to bright cherry red, and then to bright red before quickly melting, and then some tiny stars gradually appeared in the melted liquid, and these stars slowly converged as they continued to grow.

The Supreme Spirit activated the fire spiritual power in its own spiritual energy, controlled the temperature of the smelting group to maintain balance, and after the stars in the melting liquid had completed the convergence and no longer changed, the Supreme Spirit Qi used its own fire spiritual power to salvage the unmelted stars that had gathered together.

Using the Celestial Eye Sense to probe these stars gathered together, Zhilingqi found that all the stars were incomparably pure fire crystal sand.

According to the refining knowledge mastered by Zhi Lingqi, the amount of these refined and pure fire crystal sand that had been successfully refined in front of him was enough to refine, so that the grade of the mountain chisel axe would be raised by one level again.

Taking out the remaining pure raw ore melting liquid, Zhi Lingqi moved the already refined fire crystal sand and chisel axe into the smelting group in the array with fire spiritual power, and divided the smelting group into two, and refined the fire crystal sand and the chisel axe separately.

As the temperature of the smelting group continued to rise on the original basis, when Lingqi smelted the chisel axe to the point where it seemed to melt and not melt, it seemed to melt and wait for the next procedure, and then used fire spiritual power to move the pure fire crystal sand melt that had been smelted into a liquid state to the surface of the chisel axe, and then increased the temperature of the smelting group, so that the two slowly fused.

Before the fusion and refining of the chisel axe was removed from the smelting group, and before the four elephants could be dismantled, the chisel axe, which had just been restored to blue-gray, suddenly appeared with a blue-gray light, and a soul-like fluctuation quickly entered the sea of consciousness of the Supreme Spiritual Enlightenment.

The soul wave seems to be telling the spirit of his joy, and it seems to be coquettish to the spirit of the spirit, the spirit of the spirit can understand the meaning of the soul wave on its own, and at the same time understand the soul wave in general, that is, the resurrection of the machine spirit due to the upgrade of the mountain axe.