A fluttering sentence touched Ya, as the great elder of the Yan clan, she was most concerned about the production of salt. Pen "Fun" Pavilion www.biquge.info

But Ya didn't know that boiling salt was very wasteful, and it would be reimbursed if it was shoddy and used a few times, and boiling salt was not so simple.

For Su Yang, the Yan clan is not the main trading partner, it is enough to have such a sentence, and then said: "Aren't you a tribal alliance, you can exchange food from other tribes first, and trade it to me."

Think about it, just a little food can be exchanged for a pottery, and there are also larger pottery jars, jars, etc. You can even use these pottery to learn witchcraft to pay tuition, but the distance is a little far, and it is inconvenient to carry.

Anything that can be eaten, as long as it is not broken, can be exchanged, even if it is just bones. ”

The elders of the three tribes were all moved, if they wanted to say that there was a lack of food, it was for sure, but the trading conditions offered by Su Yang were too generous to refuse.

After these people left, Su Yang also chose a place to burn pottery, and prepared a large number of shoddy products, which often received unexpected results.

The clay pot is mud to put it bluntly, and when firewood is wasted, he digs the soil on the spot and uses local materials. There is no need to dry the clay and knead it carefully, knead the mud more, add some pottery powder, plant ash, the structure will be more stable, and you are not afraid of flaws.

At the same time, someone is arranged to be in charge of the transaction, and it is enough to execute it according to his requirements.

In addition, based on the inspiration he received from the Youchao clan, he built several watchtowers, and the principle was also simple, drive a few wooden stakes into the ground, and then build a small house on them, so that people can stand on them and find anomalies at any time.

Smelting is not so simple, the preparation alone is enough for thousands of people to work, and the wood is not immediately burned after cutting, but also needs to be left to dry. Hays and twigs can only be used as auxiliary fuel, and the trunk is the main force of real combustion.

And the trunk of the tree has to be burned into charcoal, charcoal burning is also a craft, so it must be reserved, although there is a lot of labor, but the lack of tools will lead to slow progress, and it is useless to rush.

By walking around the big tribes outside, this period is barely Neolithic, and it is marked by primitive people coming out of caves and forming villages.

The Neolithic period was the peak of matriarchal societies, and the advent of copper marked a decline.

Each era may be thousands of years, and at this time he is about to cross this era, this can only be regarded as a victory for one person, the appearance of bronze represents the rise of the paternal line, he has no intention of saving the male compatriots in the world, it is enough to have him alone, otherwise how can he be called a lonely widow.

At the beginning, he said that every time he found a piece of natural copper, it was a consumption of character, and as the stone he asked for was found, Su Yang only hoped that God could be everywhere and accompany him for a long time, so that he would always have good luck.

Most of the stones found are malachite, and this one is green and easy to distinguish. Red copper is also okay, but the particles are a little smaller, and they don't add up much, and there are even fewer natural copper blocks.

He had already chosen a place for smelting, first set up a shed, prepared stones, timber and other materials, and as for the smelting kiln, he still had to ponder and ponder.

Judging from the collection, it is not a big problem to get some copper out in the early stage, and then you have to model, so that you can have tools.

At first, he only planned to forge tools first, maximize the release of labor, and first bitter and then sweet.

At the same time, when sorting out the smelting method, he was depressed to find that limestone needed to be used, which was tragic, which meant that he had to trek through mountains and rivers to make a trip, of course, he could also find limestone from other places, or quartz sand instead, the latter should be available in the Xia tribe area.

In addition, tin ore is also missing, but tin ore as a single mineral is formed very little, often as a companion product, involving many kinds of metals, copper ore is also one of them. In other words, tin ore can be found in this Xiyi Mountain, and the proportion mixed with tin and copper is small, which should meet the needs.

The melting point of tin is terrifyingly low, it seems to be only more than 200 degrees, and he is no stranger to tin foil or anything in modern times, cheap and good. When tin is added to red copper, the melting point of copper can also be reduced, making it easier to forge.

The steps are almost sorted out, and once again I found that it is really not easy to smelt copper, he is a modern person with a lot of knowledge accumulation, and he still feels a little foggy, interlaced like a mountain.

So on the other hand, how did primitive man use copper in the first place? There must have been copper before bronze, and he didn't believe that he could pick up so many natural copper pieces.

If it is unsurprising, it should be accidentally burned copper during cooking, for example, malachite has a high copper content, theoretically more than 50%. Cuprite is even more perverted, up to more than 80 percent, and can already be used as copper.

In modern times, even if the ore contains only one percent of copper, it is already valuable to mine.

Su Yang sat on the stone pier to write and paint, the copper content of general copper ore is less than 15 percent, or even a few percent, of course, this kind of slag is basically not considered for him, it is too troublesome to refine, it can not be smelted and purified at one time, and there are too many impurities.

Therefore, the ore he selected basically belongs to the copper-containing ones that can be seen with the naked eye, such as chalcopyrite, as soon as you see this kind of stone, you will feel that the color is abnormal, and the surface is often dark yellow or spotted due to oxidation, and the streaks are green and black.

The chalcopyrite has more than 30 percent copper content, which can be operated, and even better, such as chalcoite, seems to contain more than 70 percent.

He only knows how to distinguish these copper ores, or the corresponding names, anyway, the colored stones are all found out, and they are classified, and the same kind of test is not clear.

You don't have to worry about natural copper ore, it's almost pure copper, and you can use it when it is melted.

"Let's go up to the mountains and have a look." Xiyi Mountain is a treasure land, it must be hollowed out, carry forward the spirit of Yugong moving mountains, move from childhood to old age, even have grandchildren, and finally only dig a foot of the mountain, and then move the gods, send Hum Ha two generals to remove the mountain, this is really an inspirational story.

took the sextuplets up the mountain, these six people basically haven't changed, they don't know what to do at all, they are lazy to do, but they can block the gun for him at the critical moment, it seems to be enough, and they can't ask for too much.

It was the first time he had gone up since the last time he set fire to the mountain, and he didn't bother with the people who were busy searching for ore, and walked up on his own.

Halfway up the mountain, he suddenly had some small silvery-white particles, as small as buckshots, which were easy to ignore if he didn't pay attention to them.

He used to play with air guns in modern times, and he was no stranger to lead, which was soft and could be easily deformed with his teeth. At this time, the particles found were not of the wrong color, not lead, but should be the associated ore of copper ore - tin.

As expected, there is a tin mine in this mountain, and the big stone in the heart has fallen, and the bronze is expected to succeed.

"Sue, come and see!" Suddenly there was a shout from the mountain. (To be continued.) )