"So this is the 'Rebecca Crystal' that you managed to make...... Well, that's right, it looks the same thing. ”

Sitting in his big tent, looking at the large basket of things that Rebecca brought with him, Gawain nodded slightly.

It was a basket of gray-black and unsightly strange substances, some loose as sand, some of which were cemented together, but no matter what form they were, they were almost evenly inlaid with countless fine particles, and compared to the "waste residue" that Rebecca had made for the first time, the content of crystal particles in this basket was significantly higher, and the average diameter of the particles seemed to be much larger.

This shows that Rebecca has not only found the formula, but also vaguely felt the way to improve production.

Hearing Gawain's words, Rebecca, who was upright and had low emotional intelligence, suddenly became embarrassed, and Miss Viscount scratched her face that looked black from the smoke and fire, and smiled like a stupid roe deer who had just turned seventeen years old and burned explosives in a cement kiln: "Hehe...... Ancestor, do you really think this thing can be called that? Isn't it true that only very good people can name other things after themselves......"

"You invented these crystals, aren't you good enough?" Gawain glanced at the N+1 layer great-granddaughter who lacked self-confidence, "Well, although there is still a lot of room for improvement, this is indeed a 'product' that can be repeated, and the name Rebecca Crystal deserves its name." ”

Rebecca went into a silly state: "Hey, hey, hey......"

"Don't be stupid, tell me how this thing is made," Gawain glanced at the iron-headed baby with a smile, "Although there is an element of luck in the appearance of any new material, I still want to know how this good luck can befall us." ”

"Oh, it's a complete coincidence," Rebecca scratched her face, "It was actually fired according to the original recipe you gave me, but yesterday when I tried to restore the firing process I failed several times, and none of the ratios worked—and then I suspected the furnace, so I ordered someone to check the condition of several kilns, and it turned out that a large piece of ...... had fallen off the inner wall of one of the kilns."

"Fell off a chunk?" Gawain frowned, realizing that the key to the formation of these "Rebecca Crystals" was probably in those fragments of the kiln wall that had fallen off, "So the materials used to build the furnace were also involved in the reaction?" ”

"This is one of the reasons, because those furnaces also use runes for heating, so they are mixed with quartz sand when they are built, and in addition to quartz sand, another important reason is the stone from the Dark Mountains."

"The stones of the Dark Mountains?" Gawain repeated.

"Yes, I compared several sets of records, and found that there are two biggest differences between that furnace and the others, the first is that the quartz sand used to build the furnace is mixed with the raw materials, and the second is that the limestone used in the raw materials is dug from the dark mountains. The other furnaces of limestone come from the banks of the Whitewater River, and some are brought from the lumberyards to the west, and they are not used as raw materials, even if they are mixed with quartz sand......"

Two conditions, quartz sand and limestone from the Dark Mountains......

Gawain groaned slightly, these two conditions are the accurate conclusions reached by Rebecca after many comparisons, there is no need to doubt their authenticity, so what role did these two things play in this process?

Quartz sand can also be imagined, because it itself is a weak magic guide material, although extremely cheap, but it is also a real magic material, and it is one of the raw materials for making artificial crystal, but what about the limestone from the Dark Mountains?

Why can't limestone mined from somewhere else?

He threw the questions out, leaving Rebecca stunned.

Miss Viscount didn't think about these details at all, she scratched the back of her head: "I'm happy to be patronizing, I haven't thought about ......"

"The Dark Mountains were once shrouded in demonic tides, and there are still traces of erosion by elemental tides in many parts of the mountains," Gawain said thoughtfully as he touched his chin, "perhaps this process changed the properties of some of these minerals...... Giving them the ability to participate in magical reactions? ”

In the absence of more experimental data and theoretical guidance, Gawain can only make such a bold guess, but no matter what the real reason is, Gawain is now sure of one thing: the "Rebecca Crystal" is absolutely unique in this world, at least in the Ansu Kingdom.

Normally, who would go to the dark mountains to dig mountains and burn stones......

"After confirming that the key was quartz sand and Dark Mountain limestone, I tried several ways to improve the crystal ratio and quality," Rebecca continued, "I found that increasing the proportion of quartz sand can make the crystal yield higher, but many crystals will break when they come out of the oven, and increasing the proportion of limestone will increase the ability of the finished product to store mana, but after a certain percentage, it will not form a crystalline." I also found that the temperature and firing time have a particularly strong impact...... There were so many items that I could test that I couldn't finish for a while, so I burned a furnace according to the best method now. Well, that's what you're looking for. ”

Gawain asked bluntly, "Can ordinary people complete this process?" ”

"Yes, but most people don't understand what you taught me about 'cross-control' and 'observation group,' so they have to do what they're taught," Rebecca replied, "and they're so careless that even when they tell them how to do it, they often get the ratio wrong, or the time they burn—the time required to fire crystals is much tighter than when to burn bricks." ”

It is imperative to improve the average quality of workers.

However, there are not even a few qualified cultural teachers in the territory...... All the people who can read and count are already overloaded, where can they find someone to form another set of education teams?

Hiring in Tanzania? There are few literate people in Tanzania! How could people who could read and write be either the children of merchants or "decent people" who had already entered the aristocratic mansions and served as housekeepers and clerks, how could these people be willing to come to such a place where birds don't and follow the pioneers, and they were not serfs and paupers who were themselves poor and white......

Gawain touched his head, and he always subconsciously made this action every time a new problem appeared, as if he was confirming his hairline......

"Ancestor?" Rebecca spoke cautiously.

"No, it's okay, it's a long-term problem," Gawain waved his hand, "You continue to produce according to this 'optimal plan' first, and try a better ratio when you have time." All in all, the more crystal grains there are, the better, and even as important as the yield of steel. By the way, I have to find a way to extract the mixed crystals here, and these black residues next to them are useless. You can try smashing them and sifting them with water, the crystals are much harder than the residue, and they are also heavier, and they should be easy to separate after smashing. ”

Rebecca nodded as she listened, and only after Gawain finished speaking did she come over with a grin and whisper like a fishy kitten, "The ...... Ancestor, I heard from Aunt Herty, you plan to make this crystal into an explosive magic item? ”

"Pretty much the same thing," Gawain glanced at the girl who always had a whimsy, "what do you think?" ”

"You're planning to use the detonation circle from the Gondor Crystal on this crystal," Rebecca's eyes sparkled, "but do you have any idea how to detonate?" ”

Gawain frowned, this was exactly what he was thinking.

The detonation circles in the Gondor crystals are the same as the common small circles, they are magic circles that cannot be self-recharged, in other words, they need an external source of mana as a "starting energy" to carry out subsequent detonation, in the Gondor crystals, this part of the energy is provided by the crystal itself, but in the "Art One" he conceived, there is no such energy.

The magic stored in the Rebecca crystal cannot be extracted to participate in other magic reactions except for being directly blown up as explosives, so the detonation circle attached to the Rebecca crystal must use other magic power as a "starting power", so where does this part of the magic come from?

Using another energy storage crystal as an "initiating battery"? Then this loses the meaning of "cheap".

Use the magic of a mage to activate the circle? Then this loses the design goal of "making it accessible to ordinary people".

"Just say it, and you know you have an idea by looking at the way you look." Gawain glanced at Rebecca, the girl in front of her was really not a person who could hide things, even if she didn't ask, she probably couldn't hold back her thoughts.

"That's right," Rebecca didn't sell again, "I studied the detonation circle and found that the activation magic it requires is actually quite ......"

Gao Wen nodded: "Of course, after all, it is a magic circle that is used to self-detonate when the crystal is about to fail, and its activation energy requirements must have been optimized I don't know how many times." ”

"Then I discovered one thing," Rebecca continued, "that 'rune trigger' I invented, which creates an extra mana blast when it closes instantly. It's faint, but it does ......"

"Wait!" Gawain interrupted Rebecca's words in an instant, vaguely aware that he had captured a key question that had been ignored for a long time, "You said that rune trigger structure produces magic the moment it closes?" Are you sure it's not the magic that escapes from the nets buried in the ground? ”

"I've confirmed it several times, because I've been very sensitive to magic since I was a child, so it's very real," Rebecca nodded emphatically, "The rune trigger has an extra magic when it is closed, and I have also found that it is not just the rune trigger, as long as you take apart an originally complete rune set, and then close them again, there will be one" Instant magic is generated, and this instant magic comes and goes quickly, in the blink of an eye, but if it is to detonate something, then it is enough to have such a blink of an eye. ”

Gawain immediately fell into deep thought, and almost woke up when Rebecca was nervous to death: "Ah...... Very good, very good, then you can follow your own ideas, and combine your rune trigger with that detonation circle and try it out. I can ask Hetty to help, and just say that I ordered it. ”

Rebecca smiled for a moment, but before she was about to leave, she suddenly remembered something: "Ah, by the way, Ancestor, have you thought about what this burst prop should be named in the future?" ”

Gawain thought for a moment, and Bao Xiang solemnly replied: "Art." ”

Rebecca: "Huh? Does this have anything to do with art? ”

Gawain looked serious: "It's called art." ”

Rebecca rolled her eyes and thought about it, thinking that the old ancestor might have something else, so she nodded happily: "Hmm! Art! ”

Rebecca left happily, but Gawain sat in the tent for a long time.

He fiddled with a pen in his hand, spun around unconsciously, and when he reacted, he realized that he had written a line of text on scratch paper:

Magic, what exactly is magic?

(Ah, I actually updated another chapter?) ）