The sun sets and night falls.

In a specially opened smelting area at the foot of Zhushan, Lin Luo's eyes were fixed on the front, and his face full of apprehension was reflected red by the firelight.

And not far in front of Lin Luo, there was a burning furnace.

Compared with the furnace in the smelter of the Evil Tribe, the furnace designed by Lin Luo himself was more advanced, and it was a shaft furnace made of rammed red clay.

Moreover, in order to increase the temperature of the furnace, Lin Luo also set up a blast outlet on the side of the furnace to make a simple blast equipment.

"Are you alright?"

The Bamboo Chief, who was standing beside Lin Luo, turned his head to Lin Luo with a slightly nervous look on his face and asked.

"It should be almost. ”

Hearing this, Lin Luo nodded slightly.

The warrior in charge of the smelting was then asked to drain the ore that had been put into the furnace.

"Whew!"

With the scorching heat, patches of reddened, flattened melt were expelled.

"What kind of gold is this?"

The fox chieftain who was standing on the other side of Lin Luo couldn't wait to ask.

"I can't see it yet, but I have to refine it further. ”

Lin Luo shook his head slightly.

Now that it has only been preliminarily smelted, the smelt discharged contains a lot of debris and looks like slag, so how can I confirm what kind of metal it is?

Hearing Lin Luo's answer, the faces of the two chiefs showed a slight expression of disappointment.

Originally, they thought that it had already been smelted, but they didn't expect to continue refining.

Soon, Lin Luo struck with a stone tool, and after simply removing the impurities attached to the surface of the smelt, he asked the warrior to put the smelt into the crucible and throw it into the furnace again.

Then, after removing the impurities from the crucible several times in a row, Lin Luo said, "Take out the crucible!"

"Okay?"

Hearing this, the two chiefs immediately became excited again.

"Well, okay. ”

Lin Luo nodded at them.

On the other side, the warrior in charge of the smelting also nodded in response, and with two specially polished stone tools, he took the red crucible out of the furnace.

Soon, after the warrior put the crucible on the ground, Lin Luo couldn't wait to look down.

After the second refining, most of the impurities were removed, and the metal smelted from the ore finally came into view of Lin Luo.

It's a metal that's white in color.

Lead, aluminum, tin?

Looking at the white color, three more common metals instantly appeared in Lin Luo's mind.

All three metals are white in color, and all have a softer texture and a lower melting point, which is very similar to the metal in front of them.

"Pour it out. ”

For further confirmation, Lin Luo immediately said to the fighter.

"Yes. ”

The warrior nodded in response, and directly poured the liquid metal in the crucible to the ground according to Lin Luo's order.

Not aluminum!

Seeing that the poured out metal liquid quickly solidified, Lin Luo flipped it with a dagger, and immediately eliminated the aluminum in his heart.

Because aluminum is a light metal, it is much lighter than ordinary metals, which is very easy to identify.

It's not lead either!

Subsequently, Lin Luo also excluded lead.

Because, without the backdrop of the red crucible, Lin Luo could clearly see that the color of these metals was a bright silver-white.

The color of lead will turn blue, and it will gradually turn silver-gray over time.

Therefore, judging from the color, Lin Luo concluded that this was not lead.

After ruling out these two possibilities, there is only one left.

That is one of the famous "hardware", and it is also the main material needed to smelt bronze - tin!

After getting such a result, a smile suddenly appeared on Lin Luo's face.

This time, he finally didn't work in vain.

"How's it going, do you see what kind of gold it is?"

When Lin Luo was observing before, the chief didn't dare to disturb them, and it wasn't until he saw a smile on Lin Luo's face that the bamboo chief asked out loud.

"Hmm. ”

Lin Luo immediately nodded and said, "This is tin." ”

"Tin?"

Naturally, the two chiefs didn't have any concept of tin, and they were most concerned about smelting bronze.

Therefore, the fox chief immediately followed up and asked Lin Luo, "Then can this tin smelt bronze?"

"Yes. ”

Lin Luo nodded again and said, "If tin and copper are put together, you can smelt bronze." ”

"That's great!"

Hearing this, the faces of the two chiefs suddenly showed excited smiles.

Now that they have tin, if they find more copper, they can smelt powerful bronze weapons.

Tomorrow we will have the Quest team speed up again!

The two chiefs thought to themselves in unison.

......

As the tin metal was smelted out, it was confirmed that Lin Luo and the others had dug cassiterite ore, and the next mining work was immediately launched.

The next day, a mining team of thirty adult men, led by Yong, rushed to the valley where cassiterite was found.

Lin Luo did not continue to explore, but also went to the tin mine and took charge of the mining matters.

After all, the Bamboo Clan had never mined, so it could be said that they knew nothing about this aspect.

Therefore, Lin Luo could only go over in person, command everyone to establish a station in the valley, divide the smelting area next to the mine, and build shaft furnaces.

In this regard, Lin Luo's thoughts are the same as those of the Hideous tribe.

That is, the excavated ore is smelted directly into metal ingots in the mine, and then transported back to the tribe for bronze smelting.

In this way, it is much more manpower than transporting chunks of bulky ore back to the tribe.

As for Feng, Lin Luo also kept his promise.

While returning the seeds of the golden grass to the Bamboo Chief and taking charge of the construction of the mine, Lin Luo also asked the Bamboo Chief to arrange for Feng to join the hunting team.

In this way, in the busyness of building the mine, Lin Luo got the news from Zhushan on the eighth day.

The fox clan found a copper mine.

Moreover, the discovery of that copper mine was quite dramatic.

Because, the place where the Fox Clan's golden grass seed emitted spiritual power fluctuations was not in the wild, but on the bamboo mountain.

To be more precise, it should be on the body of a woman in Zhushan.

The woman used to be a member of the Tiger Tribe, and after the defeat of the Tiger Tribe, she became a slave girl of the Fox Clan.

Later, because he was favored by a totem warrior of the fox clan and formed a partnership with the totem warrior, he officially became a member of the fox clan.

And the totem warrior of the fox clan happened to be the person in charge of exploring the ore veins arranged by the fox chieftain, and he had always carried the seeds of the golden grass with him.

Therefore, when I came into contact with the woman, I suddenly felt the spiritual power fluctuations emitted by the seed.

After that, after some searching, a malachite pendant was finally found around the woman's neck.

Although the environment of Zhushan is not suitable for the survival of the golden grass, malachite is a copper-containing carbonate mineral, and when it comes into close contact with the golden grass seeds, it will also cause the spiritual power of the golden grass seeds to fluctuate.

However, this fluctuation is very slight and will not be noticeable at all if you don't perceive it carefully.

That's why, the totem warrior won't find out until the eighth day.

Subsequently, after some inquiry, the Fox Clan learned from the woman's mouth that the malachite was found on Tiger Mountain, where they used to live.

Because malachite is bright in color and looks extremely beautiful, many women in the tiger tribe will dig up malachite to make jewelry and wear it on their bodies.

After getting this clue, the people of the Fox Clan immediately rushed to Tiger Mountain, and finally found a chalcocite with malachite on Tiger Mountain.

When he first heard about this discovery process, Lin Luo sighed for a long time in his heart.

In my opinion, it is simply like stepping on iron shoes and finding nowhere to go, and it takes no effort to get it!

He never imagined that the copper mine they had been looking for so hard would be in the place where their former sworn enemy lived.

At this point, the tribal alliance has finally found all the two metals that smelt bronze and tin.

And because the veins were too difficult to find, after finding the two metals, the two chiefs also gave up their previous plans to find the veins and smelt bronze separately, and chose to join forces.

The two clans worked together to mine veins and smelt bronze together, and the bronze weapons they obtained were divided equally between the two families.

This is a fairer way to cooperate, and neither the spirit nor the witch has any opinion.

Therefore, with the joint efforts of the two clans, the construction of the two mines has also progressed rapidly.

It didn't take long for pieces of smelted tin and copper ingots to be transported back to Zhushan from the mine.

Lin Luo also immediately started, smelting the bronze.

......

"No, it's too brittle. ”

Looking at the bronze stick that had broken into two pieces, Lin Luo turned his head to the warrior in charge of smelting and said, "When the next pot is smelted, reduce some tin." ”

"Yes. ”

Hearing this, the warrior immediately nodded in response.

At this time, Lin Luo's smelting of bronze had been trying all day.

Although he knew that bronze was made of copper and tin smelting, he did not know the specific ratio of the two metals, and only knew that the proportion of copper was larger.

Therefore, in order to smelt the strongest bronze, it is necessary to keep trying.

Because, if the proportion of copper is too large, the smelted bronze is not hard enough, and it will still be very soft.

However, if the proportion of tin is too large, the smelted bronze will be too brittle and will easily break after being hit hard.

Just like the bronze thin stick cast in Lin Luo's hand at this moment, when he collided with the bone knife just now, it broke all of a sudden.

This is easy to break, and it is obviously not suitable for casting weapons.

Soon, after readjusting the proportions, another pot of bronze was quickly smelted.

"Lin Luo, how's the bronze smelting?"

At this moment, the two chiefs came from a distance and asked Lin Luo about the progress of the smelting.

"This pot should be fine. ”

Looking at the bronze in the crucible, Lin Luo replied loudly.

"Really?"

Hearing this, Chief Bamboo's face suddenly showed joy.

"Then forge a weapon and see. ”

The fox chief immediately said impatiently.

This time, in order to forge bronze weapons, the tribal alliance spent a lot of manpower and material resources.

It took nearly a month to finally smelt the bronze, and they couldn't wait to see the final result.