The Thunder Clan is a catfish placed in the Gonghuo Basin by Xu Chen. Not only does it take root here to monitor the Gonghuo Clan, but it also serves as a contact with other tribes, and also helps Xu Chen complete the task of commercial development.

Xu Chen will temporarily hand over the pottery, grain and future salt to the Thunder Clan for the transaction. The Ba Clan will arrange people to arrange for processing the goods they have received, and transport them back to the secondary transaction for the secondary transaction.

In short, Xu Chen hopes to use commercial interests to tie Lei, a rare commander-type warrior, to himself.

There is no court system or aristocratic class at present. If you cannot give him high officials and generous salaries, you can only give him some recent benefits so that Lei can be devoted to him.

As for Long, Xu Chen's opinion is still too young, brave but his personality is a bit impetuous, and it still needs some polishing. In the future, he and Lei will form the two military commanders of the Dachen Empire, responsible for foreign wars and expanding territory.

Since Xu Chen discovered salt near the Mongolian people on the other side of the river, he arranged for Feng to return to the Ba people in advance, asking him to regularly transport pottery to the Thunder Clan and the Mongolian people, and at the same time transported the salt mined by the Mongolian people back, and handed some to the Thunder Clan for foreign transactions and sale, and some were transported back to the Ba people for their own use.

The current salt is mainly stone salt crystals. I don’t know if the indigenous savages have successfully dried the salt in more than a month.

The temperature is low in winter and the evaporation is small, so it is not suitable for salt drying, but there are also a large number of stone salt crystals inside. Although they are not pure, what is it for primitive people? They eat raw blood and drink blood. When they are short of salt, they lick the salt-alkali soil. What's more, this kind of salt crystal with high purity is already considered a divine object given by the gods.

The total population is not large at present, and all tribes have a total of only 4,000 people. According to the consumption of 10 grams of salt per day, the consumption per day is only about 40 kilograms, and a ton a month is more than a ton. This amount is not big or small, but I think it is impossible to fully satisfy it, because the area of ​​the salt area is not too large, so for a long time, salt has always been a scarce item, and each tribe can only barely supply a part.

However, with the addition of these stone salts, the symptoms of salt deficiency in these tribes will greatly alleviate the health and lifespan of these tribes. Of course, it will greatly promote the interest of various tribes in farming and gradually reduce the demand for meat.

At present, the Thunder Clan stores a batch of salt crystals transported by wind people from the Mongolian tribe, which looks about hundreds of kilograms, and the colors are relatively chaotic, including a lot of stone salt polymers accumulated by sand and soil.

According to the person in charge of the Thunder Clan's supervision of the salt crystal and the transaction, several tribes have exchanged some salt crystals with animal skins and some feather gems. However, when the Thunder Clan brought out all the exchanged items, Xu Chen just took a brief look and asked someone to select some beautiful feathers, animal skins and gems from it, and prepared to take them back as a gift for the men, women, and young people in the tribe. The rest are left in the Thunder Clan, part of which is their hard work, and the other is temporarily kept for future transactions.

Compared with other tribes, the Ba people are currently lacking in nothing, and bringing all these traditional things back is not very meaningful.

As the transit station for goods arranged by Xu Chen, the Thunder Clan is not only responsible for the external sale and transaction of grain and salt, but also the things given to the Ba tribe by other tribes are also kept here.

Therefore, Xu Chen also saw a batch of metal lead sent by the Five Ghosts in the Thunder Clan.

After Xu Chen left, the people of the Five Ghosts tribes were working hard to mine lead. In a month, they actually got hundreds of kilograms. Although the lead was small, it was very heavy. The size of a fist was several kilograms. Whether it was a vine basket or a basket, it could not hold a few pieces. Moreover, it took seven or eight days to transport it, which was very hard and tiring.

These leads are still very important to Xu Chen, because the Wu tribe is also mining and smelting copper ore on a large scale, and the copper sent to the Ba tribe has already reached thousands of kilograms, and more this winter is probably the case.

Although there is a shortage of tin at present, as long as you find a way to melt it into copper-lead alloy, you can cast sharper metal knives, which are easier to break, but they are still much stronger than stone knives and stone axes. If you really can't do it, you can use it temporarily.

Although the Five Ghosts were willing to help Xu Chen refine lead free of charge, Xu Chen still asked Feng to leave a trading plan for the Thunder Clan and exchanged it for any items they were in urgent need in a certain proportion. Therefore, the Five Ghosts Clan sent these lead blocks and happily carried a lot of pottery, animal skins and some salt.

The demand for lead is not high at the moment, and long-term contact will cause poisoning. Therefore, Xu Chen reminded the Thunder Clan that if the Five Ghost Clans come again next time, they can remind them to get less. The other lead must be stored separately from other items such as animal skin, grain, stone salt, etc., and do not enter the mouth. After touching the lead, you must wash your hands, etc. In order to be safer, he also specially guided them to make gloves with fish skin or thin animal skin to try to isolate and reduce contact with lead.

However, reminders are reminders and guidance are guidance. If these people listen or not, Xu Chen can't control it. After all, they are a group of savages and can't count. They almost use their hands regardless of eating, drinking, defecation, and washing their hands before and after meals. At present, only the Ba people can barely do this. There are many people in other tribes who are scattering and adding hands.

Xu Chen asked Mo and others to pack these lead ores in animal skins and prepare to take them back to the Ba tribe.

In the future, he will relocate metal smelting and processing to the Gonghuo Clan, but the opportunity is not yet ripe now. At least it will be until the bronze is completely smelted and his palace is built. It will take at least two years to go on.

In addition to lead, the rest are some messy things sent by various tribes, including the gold sent by the Cang clan, the turquoise sent by the Ji clan, the amber sent by the Cha clan, the crystal sent by the Kun clan, the agate sent by the Qu clan, the two dragon teeth sent by the Yehuo clan, the several strange-shaped beast teeth and horns sent by the Yugong clan, etc.

These things are so big that they are so colorful that they are dazzling.

Xu Chen used his hand to search and search, paying special attention to some of the so-called gems.

Many of the gems in the eyes of primitive savages are not gems at all, but various ore crystals with beautiful colors.

These crystals are just more purity and rare, so they become treasures.

Many things actually have almost no value in Xu Chen's eyes.

Just like crystals, some seem to be crystal clear, but they are just some crystals such as quartz stones and even fluorite zeolites with higher purity.

However, just as Xu Chen was about to get up with a little disappointed look, his eyes suddenly moved and he took out a slightly brown-yellow stone from a pile of colorful stones.

The stone looks ordinary on the outside, but there is a place that is damaged after being hit. The fracture is crystal clear, the cross section has a diamond-like refracting luster, and it also has a sense of oiliness.

He looked over and over again, then rubbed his dirty leather armor back and forth for a few times, leaving a few faint light white marks.

Damn, this...isn't this castone?

Xu Chen suddenly felt happy that beggars picked up a spicy chicken leg.

I searched everywhere without any effort. I went out thousands of miles to search for the whereabouts of the tin mine. I didn't expect that I would return empty-handed, but when I was most disappointed, it appeared silently in front of me.

Although he did not have any instrument analysis, he was nine points sure that this was the coveted tin ore, and it was the most purified concentrate ore.

Tin is a common metal mineral in the earth's crust. It is widely distributed and is also one of the earliest metals discovered and applied by humans. Like natural gold, it has a very long history.

The reason is that the melting point of tin is particularly low, and it can start melting after more than 100 degrees, and it will be completely liquefied after more than 200 degrees. Therefore, there is no need for professional processing and smelting furnaces, and it can be burned quickly in the fire.

When he was a child, Xu Chen watched his grandfather use a small iron pot to melt tin on a coal stove, rolled it into a paper tube as thick as a chopstick, inserted a weed pole as thick as a toothpick in the middle, and cast it into a round hollow tin column. The cast tin column is cut into more than an inch in length with a knife, which is the best foot to make fishing nets.

It seems that he felt the magical effect of metal since he was a child. He began to be interested in various metals, and finally applied for the geology and mining major, and then became a wild geological team member who carried pickaxes and instruments in the deep mountains and forests all day long.

Tin has been used in China and abroad for a long time. Its silvery appearance and low melting point and easy processing properties have always been one of the popular metals that have lasted forever.

However, this metal is beautiful, easy to use and is soft and easy to process, but it has a huge disadvantage, that is, it is afraid of cold.

Once it reaches more than ten degrees below minus ten degrees, it will become brittle into powder, and this change is also contagious. Once a good tin device is contaminated with these powders, it will also quickly powder it like a plague. Therefore, if one of the tin devices in a room is broken, then all tin devices will be damaged like poisoning.

In professional fields, Xu Chen can almost memorize the metal characteristics of tin.

But the appearance of this cassiterite made him feel excited and filled with tears.

Baby, baby!

Xu Chen held the cetstone in his arms, and his eyes were filled with tears of happiness.

A group of Thunder Clan people and Mo and other hunters stood beside each other without knowing what to say, and they didn't know how to speak. They could only stare at each other with big eyes, and then waited until Xu Chen took a deep breath to calm down, and raised the stone to ask, "Where did this stone come from? Do you still remember?"

Several Thunder Clan people looked left and right at the Castone, and then shook their heads.

These baskets were sent by various tribes, and there was only one stone that no one could remember.

"Think about it carefully, it is very important to me!" Xu Chen reminded me seriously again.

Standing next to him, Thunder raised his fist with a gaze, showing an attitude of dying about a blow-off.

Xu Chen arranged to help collect these things for their tribe, but he couldn't figure out where this thing came from.

After spending more than a month with Xu Chen, he knew that Xu Chen's nature was generally stable and confident. Such a serious tone and expression must be very important.

"Think about it quickly, or you will get beaten!" Lei threatened loudly.

Several Thunder Clan people shrank their necks and looked at each other, then began to pull up the stones inside the vine frame to compare and recall, and sometimes they exchanged a few words. Finally, someone finally remembered it and replied carefully: "Cang Clan sent it!"

"Cang Clan? Confirm?" Xu Chen asked in surprise.

"Zhengga, Zhenga, here are three baskets, the Cang tribe and Ji tribe are all together..."

Without waiting for the guy to finish speaking, Xu Chen turned around and said to Lei: "Hurry up and arrange someone to ride this stone to the Cang tribe with it, and ask clearly the origin of this stone, where did you find it?"

"Abide by the order!"

Lei quickly bowed his hand and turned around to leave, but was quickly pulled by a Lei tribe man and said, "Don't worry, the Cang tribe will come tomorrow!"

Xu Chen was stunned for a moment and asked curiously: "How did you know that the Cang tribe members will come tomorrow!"
Chapter completed!