I really don't want to be a system

Of course, I also embarked on a journey to find one of the most important goals of this time——bronze.

Bronze is the earliest alloy in the history of metal casting. Adding tin or lead alloys to pure copper (copper) has special importance and historical significance. Compared with pure copper (copper), bronze has high strength and low melting point (25% If tin is used to smelt bronze, the melting point will drop to 800°C. The melting point of pure copper (copper) is 1083°C).Bronze has good castability, wear resistance and chemical stability.

Pure copper (copper) can actually be refined, but its melting point is extremely high, and it is not very easy to use~~
Generally speaking, it is very soft and not easy to use. You can add tin or lead~~
But as for what to add, Chen Chao said it doesn’t matter, it depends on what resources are on the map given by Xiaodian~~

However, it is best to add tin. Tin is soft, ductile, chemically stable, corrosion-resistant, fusible, has a small friction coefficient, and tin salt is non-toxic.

Chen Chao inquired (crossed out) and thought about the addition ratio, which was divided into six types.

1. Bells and tripods: The ratio of copper to tin is six to one, that is, copper accounts for 85.71% and tin accounts for 14.29%.

2. Ax: The ratio of copper to tin is five to one, that is, copper accounts for 83.33% and tin accounts for 16.67%.

3. Halberd: The ratio of copper and tin is four to one, that is, copper accounts for 80% and tin accounts for 20%.

4. Large blade: The ratio of copper and tin is three to one, that is, copper accounts for 75% and tin accounts for 25%.

5. Cutting and killing arrows: the ratio of copper and tin is five to two, that is, copper accounts for 71.43% and tin accounts for 28.57%.

6. The ratio of Jiansui, copper and tin is one to one, that is, each accounts for 50%.

(Note: 17% to 20% tin in bronze is the toughest.)
Moreover, tin and copper are often associated with each other. Of course, lead also has a certain probability of being associated with them, and silver is often associated with them.

But for things like lead, if you can’t add it, don’t add it. In the current state of no protection, it’s still not very good for the human body.

So in addition to pure copper (copper), Chen Chao also needs to find tin~~
Because after taking a look just now, he didn't get a sixty-point start—that is, copper-tin associated mines.

Not only is it not a [-]-point start, but the distance between the two is really far, the straight-line distance is about [-] kilometers, and it is estimated that the score will have to drop again.

Chen Chao checked (crossed out) and looked at the search characteristics of tin mines.

The main features are: 1. Granite area or concealed granite area.

2. Areas of marble, hornfel, skarn, greisen, and electric quartz.

3. Ultrabasic rocks and gabbros in individual tin-rich areas in rhyolite, granite, granite porphyry and their contact zones;

In general, these characteristics.
He doesn't know much
But fortunately, there is a location map given by Xiao Dian, so he decided to take people to the mountains after he got there. With a specific location, it should be much easier to find.

Moreover, the characteristics of cassiterite are relatively obvious. Natural cassiterite is gray-black in color, shiny, and very easy to distinguish.

The most important pure copper (copper) can be found through malachite.

Because there are often some purple-red natural copper (also called red copper) with a purity of more than 99% on the surface where the copper deposit is located.It is soft and malleable, and can be processed into tools and daily necessities with a little beating.

In the oxidation zone at the upper part of the copper mine, a kind of green malachite is also common.

Malachite is named for its color resembling a peacock's feathers. Generally speaking, it is very beautiful and easy to distinguish.

It is mostly blocky, stalactite-like, shell-like and concentric strip-like.The green pigment made of malachite is called stone green, also known as stone record.Malachite is also called "copper green", and it is also a sign of prospecting.

When Chen Chao checked the information (crossed out) and thought about it, he also found an option for a full game, that is a place called Tonglushan.

That place is amazing, it is really a comprehensive deposit of copper, iron, gold, silver, and cobalt.

Of course, he doesn't want to think about it now, because this place is far away from him.

I can only mark it first, and then hug this cute little boy into the arms of the boss of this system~~

The copper ore mined from the copper ore is processed into a copper concentrate or copper ore with a high copper grade after beneficiation.

Copper concentrate needs to be smelted before it can become refined copper and copper products.The earliest source of copper ore was malachite.

So, as long as you find a mountain with malachite, it is estimated that the copper mine Chao Chen wants is located there.

Thinking of this, Super Chen sighed lightly.

In this world, you must first be an expert in survival, and then you must be an expert in botany, biology, geology, etc.!
It is estimated that there will be wars in the future, and he must be a military strategist.
It can't be the kind that just talks but doesn't practice on paper.
Not even law, psychology, sociology, linguistics, literature, mathematics, etc.
Even the commercial aspect, I have to find a way to think about it.
Fuck, I'm Chao Chen, I'm just a little bit of money with a little bit of money.
To travel through the front, I read [-] Tang poems, and I read Marxism and Mao Zedong's anthology! !

What I think is that if the teammates don't hang up, there will be three hundred bowls of rice! !

What I want is for me to choose a fragrant car, a beautiful woman to hug me, a foot on the moon to go to the heaven, and a fairy to be pitied by me! !

Didn't come here to look for mines! !
What?You say this mine belongs to my family?

Look for it now, I can look for it every day! !

Look for it every year, every month, even when you wake up, and even when you sleep! !

It's a trivial matter to find the old days~~

I can not only find, but also dig, no, there are people who are on my order with Xiao Baihao behind me! ! ~~

Oh, and pigs and sheep, they can move a little stuff too.

Although there are not many, it can be moved, right? ~~
When necessary, they can also go! !
Look at the masters of this system using the most primitive tools to develop the best animal power handling tools! (bragging)

Move as much as you want!
When Chen Chao led the large army to walk for several days, stepped across several rivers, passed through several jungles, and climbed over several mountain peaks.

He could already perceive in his consciousness that when he was near the designated pure copper (copper) mine on the map.

He looked up and found that the vision was not good.

Surrounded by mountains, when you look up, you can only see bare tree branches, most of the chicken blood melted, and a few white clouds floating in the blue sky.

So Chen Chao asked everyone to wait at the foot of the mountain, he took Qu and Li Nong first, and found a suitable mountain to climb up first.

When he stood on the highest mountain peak and looked up into the distance, Chao Chen was very shocked by the mountains in front of him.

It can't be said that they all look exactly the same, there are still some differences in height, shortness, fatness and thinness.

But everything on the mountain looks similar, right?

At this moment, he wanted to interview these mountains.