After talking casually for a while, it was time for breakfast, and as soon as they started to eat breakfast, the three of Xiao Jing were surprised by the speed at which Xiao Jing's nine elves ate food. It seems that after the morning jog, the elf on Xiaojing's body is indeed hungry, and the food is called a fragrant. In the end, even Pikachu ate two full bowls of elf food, which made Xiaojing want to study how Pikachu's belly contained so many things.

After eating dinner, after cleaning up, the three of them said goodbye to Miss Joy and walked towards the entrance of the passage located in the southwest corner of the city. When passing by the Friendship Store, Xiaojing deliberately walked into the Friendship Store and bought some elf food. To tell the truth, the amount of food of the elves this morning really scared Xiao Jing, if you don't prepare a little more elf food, I'm afraid that in two days, your elves will be hungry.

The packaging of these elf food is designed according to the amount of one box per day for normal adult elves, looking at the amount of elf food this morning, I am afraid that on average, each elf needs a box of elf food for each meal, according to this calculation, the amount required to reach random town from here for about three days is thirty boxes, fortunately, the space technology in this world is still very powerful, and Xiaojing's backpack is enough to put it in.

After shopping, the three of them walked straight towards the east gate passage of Yuanzhi City, and after more than forty minutes, the three of them left Yuanzhishi and entered Road 209. As soon as he entered Road 209, Qingyang Iridium became like a bird out of the cage, very cheerful, looking around from time to time, as if he was full of interest in anything.

Looking at Qingyang Iridium's appearance, Xiao Jing just smiled and didn't say anything more. After all, Qingyang Iridium has been locked up for too long, when she was in the Milky Way Group, she spent most of her time in the base, and the time to wander in the outside world can be said to be very small, and then she was locked up underground in the city of Yuanzhi for a month, this month of time is isolated from the world, and now that she comes out, she will naturally be full of interest in everything.

However, Xiaojing knows, but it doesn't mean that others also know. No, Shima beside Xiaojing asked curiously: "Xiaojing, what's wrong with this Iridium sister, why does she seem to be as curious about everything as a child of a few years old?" ”

"You don't understand that, do you?" Xiao Jing, who had already figured out how to respond, said directly: "Curiosity is an important characteristic of creative talents. For a materials researcher, anything has the potential to become useful material for her, and naturally she must maintain a good curiosity about everything, only in this way can it be possible to find truly useful materials. Hey, look at me, and then look at Iridium, you can see the gap as a researcher, I have the name of a marine researcher, except for the cause of the formation of the vortex near Senhai Town at the beginning, there really is no research results, and no further research has been conducted, in comparison, I am a little ashamed of myself. ”

I don't know if it's to confirm Xiaojing's words, Qingyang Iridium suddenly picked up a stone from the ground, ran over, and said, "Look at this rock, do you know what this rock represents?" ”

Xiaojing carefully observed the rock, and saw that the rock was gray in color, with reddish-brown strips in the middle. To tell the truth, Xiao Jing studied energy in college in his previous life, and he also dabbled a little bit in geological things, and he also had a geological internship and looked at these things, so Xiao Jing still knew this rock: "This is a piece of limestone with reddish-brown bamboo leaves. Limestone is a sedimentary rock, which must contain a little iron, after deposition, due to the action of storms and so on, this piece of dolomite that has been deposited is brought back to the shore, and then the iron becomes reddish-brown after a long period of oxidation, and then it is brought back into the ocean by rivers and so on, and re-deposited, it becomes such a rock. In other words, the presence of such rocks means that there was once an ocean here or near it. ”

"Oh, Xiaojing, you actually know this", Qingyang Iridium said in surprise: "I only knew these things after consulting a researcher about geology, and at that time, the researcher only talked about what it represented, and did not say the reason, you are actually more detailed than what the researcher said, which is really amazing." ”

"What's the matter, I just happen to know", Xiao Jing said with a smile: "Don't forget that I am also a marine researcher of the Alliance, and I still know a little bit about things related to the ocean." ”

"In that case, do you know what this piece is used for as a material?" , Qingyang Iridium blinked and asked mischievously.

"Looking at the appearance of this bamboo leaf limestone, it is obvious that the argillaceous content is very high, and the material outside the bamboo leaf should be argillaceous limestone, and your argillaceous content is very high, it seems that even if you make quicklime, you can't use it, so there should be no industrial use, right?" , Xiaojing said suspiciously.

"How can it be useless", Qingyang Iridium said with a smile: "Since you know that this is muddy, can you tell what kind of mud it is?" ”

Xiao Jing looked at the source of this stone, smiled and said: "Look at the location of this rock is on the edge of the river, but there is no scattered expansion, so, the mud of this rock should be chlorite or illite that does not expand when exposed to water, look at the color, the appearance of this rock is slightly greenish, it can be seen that the main body should be chlorite, it may contain a certain amount of illite, right?" However, this should not be of much use, because even if you make an ornament, you should find pure clay minerals. ”

"Xiaojing, don't always focus on industrial use", Qingyang Iridium said with a smile: "This kind of rock is an essential material for the treatment of rock elves, and after the battle, rock elves sometimes have some slight lacerations on their bodies, at this time, they need a mixture of illite and chlorite combined with cement to treat wounds." The wound position of the elves that have completed this treatment can basically be waterproof, and the strength of the body can be guaranteed, so it is very popular with rock elf trainers. ”

Hearing these words, Xiao Jing didn't know what to say for a while, his thinking was still limited to the extent of his previous life, and he always thought about the use of industrialization, but he didn't expect that in this world, he could directly use rocks as materials to treat rock spirits, which was incredible. But to be honest, Xiao Jing is still skeptical about this security, and he definitely won't try it.