Soon, Xia Duo arranged a series of protective spells in the laboratory, of course, the focus was still on avoiding detection, he didn't want to just refine a little high-grade Mithril today, and be approached tomorrow.

In order to reduce the possibility of being spied on, he even imprisoned this small piece of magic net in the casting area, and only cast spells with the miniature magic net unfolded by his own arcane fire.

"If this can be discovered, then I will admit it!" Xia Duo said fiercely.

Then he controlled the strings of the magic web to build an energy circuit, and when the spell took effect, the entire laboratory was flooded with a strong light.

Even Shado, the spellcaster, couldn't judge the state of the target, that is, the Mithril ingot brought by the Arcane Federation.

But he didn't care, he had seen this situation more than once, and if necessary, when he returned to the Tower of Time, he could let Nia observe and record it for him.

This is just the glow produced by the extreme reaction of the elements, which cannot be penetrated by the naked eye or even magical vision alone, but through special detection magic, it is possible to understand many details of the reaction process.

As for the details, Xia Duo didn't need to observe them to know, after all, this spell had been studied quite thoroughly by him.

The so-called "elemental extraction" is not actually "taking" Mithril directly from the mixture, but starting from the elemental nature of Mithril as a substance, and excites the state of the sample substance to the critical state of [matter-element].

(Mithril needs to be extracted in the majority, if other substances are the majority, then other substances are extracted)

Some of those non-Mithril substances will directly disintegrate into elements and dissipate directly, and some will be attracted by the framework of [Mithril - Elemental Essence] and transformed into Mithril.

The last part is to maintain the status quo, what was the original, and what it is after getting out of the critical state, it is still what it is, which is commonly known as "impurities".

Of course, in the process of extracting Mithril itself, these three results will also be produced, of course, for Mithril, the transformation of Mithril is to maintain the original state, in fact, there will only be one result, that is-

A small portion of Mithril is gone!

Through multiple extractions, the impurities are reduced again and again until they reach a limit, which is also the upper limit of the purity of Mithril that can be advanced by the spell of [Elemental Extraction].

At present, Xia Duo has not tried the limit extraction, and he does not know how pure Mithril can be refined by this spell, it is not that he is not like the limit extraction, but the limit is too far away, and he does not have so much time and energy to test this.

This is an attempt with diminishing marginal utility, and it may not be much better than a first-class product in the end.

After trying more than ten times before, Xia Duo decisively gave up, in addition to the fact that the consumption of Mithril made him unacceptable, the theoretical endlessness was also an important reason.

Theoretically, there is indeed an upper limit of purity that can be extracted, but theoretically it is also not up to the upper limit, similar to the limit of [1/2+1/3+1/4+......] summation.

The more extractions there are, the closer they are to the limit, but can a normal human be able to extract indefinitely?

Even if it could, with such a spell caster with infinite time and infinite energy, when the number of samples was small enough to a certain extent, it was possible that all of them would dissipate in a critical state.

This is the gap between theory and practice.

……

As for this time, Xia Duo is only going to refine these Mithril to the first grade.

On the one hand, he didn't want the Mithril, which was inherently relatively pure, to have too much loss.

On the other hand, these Mithril are magic items that are customized by others, as long as they can meet the basic requirements, no matter how high the purity is, others will not pay extra, so why should he be thankless!

Soon, the first extraction was over, and the elemental glow that had filled the laboratory suddenly dissipated, and it took Xia Duo a moment to recover his eyes from the contrasting darkness.

He first examined the target Mithril Bar, and the overall shape did not change much, except for some tiny irregularly distributed pits on the surface.

Immediately afterwards, he cast a spell to measure the current weight of the Mithril ingot, counting the previous use to test the purity, if the Arcane Federation did not lack two catties, then he would have consumed at least 100 grams of Mithril in this extraction.

100 grams is insignificant compared to 10 pounds, but it's not something that can be extracted once or twice.

"Ahh

Xia Duo let out a long sigh and cheered up again to start the next round of spellcasting.

……

A total of 10 rounds of extraction!

Xia Duo still has some experience in this, from standard Mithril to third-class Mithril, it only takes two rounds of extraction, but from third-class Mithril to first-class Mithril, it takes at least ten rounds!

Ten 9-ring spell casts, Xia Duo replenished the arcane energy for the arcane fire ten times halfway, and his current arcane energy limit is only enough to cast a 9-ring spell once.

If you want more, you naturally need to supplement it with arcane energy crystals, and this is the meaning of the arcanist's daily accumulation of arcane energy crystals.

Fortunately, he used his own arcane fire to cast spells, so that his mental consumption was reduced a lot, and when he was extracting the elements in the Tower of Time, in order to save arcane energy, he used the external magic net to cast spells, which was much more difficult than this.

And after ten rounds of extraction, the cube in front of Xia Duo, which was originally very regular and complete, has become full of holes.

This time Xia Duo didn't measure its weight, but just weighed it with his hands, and roughly judged that it should weigh more than 3 pounds in the temple.

Although this is not quite in line with the ideal value that Chardo wants, it is already a great harvest for the current Nesseril!

Deacon Tom of the Arcane Federation had previously said that Level 5 members could purchase high-grade Mithril, 10 pounds of third-class or 1 pound of second-class at the welfare price of standard Mithril.

This also shows that in the economic system of the Arcane Federation, the price of Mithril skyrockets tenfold for every grade raised.

Xia Duo's extraction this time, from 10 pounds of third-class Mithril to 3 pounds of first-class Mithril, the price skyrocketed 30 times, if he sold these 3 pounds of first-class Mithril, and then bought third-class, or even standard Mithril to continue extracting.

Repeatedly, he can become the richest man in Nesseril!

The wealth that can be obtained by leading technology is beyond imagination!

Of course, if he really does, the pig-killing knife may fall quickly!

No one wants their hard-earned wealth to be quickly taken by others in this way, and the water in the first-class Mithril is too deep for Xia Duo to grasp it for the time being.

He even suspected that there were so few high-quality magic items on the market, perhaps someone was using this method to seduce the clues of first-class Mithril.

Excluding the few "legitimate" sources, there must be someone who has mastered the refining technique of first-class Mithril.

Of course, Xia Duo doesn't have to worry about it now, there is a ruin of the Mystery Lock in his territory, which is a fact that almost everyone knows.

It is possible to find quite a few first-class Mithril in any ancient elven ruins, and the exact amount is known only to the discoverer himself.

But if it's a big deal, it's not good, and it's almost unmistakable to announce to others that I have the material, so how can other people bear it!