I make a popular science video and all the emperors learn from it!

[Continue to popularize science.] 】

[Popular science on the earth, the ten most precious natural resources!]

[Fifth place: other mineral resources.] 】

[Minerals generally refer to all natural mineral or rock resources buried underground (or distributed on the surface, or weathered by rocks, or deposited by rocks) that can be used by human beings. 】

[Minerals can be divided into metallic, non-metallic, combustible organic and other categories, which are non-renewable resources. 】

[1. Metal ore products. 】

[Metal minerals from which metal elements can be extracted, such as iron ore, copper ore, lead ore, zinc ore, lead-zinc ore, etc.] 】

[2. Non-metallic ore products. 】

[Non-metallic raw materials or non-metallic minerals that can be directly utilized can be extracted, such as pyrite, phosphate rock, diamond, limestone, etc.] 】

[3. Combustible organic minerals. 】

[Combustible organic minerals that can be used as fuel, such as coal, oil shale, oil, natural gas, etc., containing mineral hot water, inert gas, carbon dioxide gas and natural gas hydrate, etc., are also included in the category of minerals.] 】

【......】

[All in all, the five natural resources that were popularized before all belong to minerals. 】

【...】

This paragraph of popular science is out.

The ancients fell silent in an instant.

"No, it's clearly a natural resource, and it's divided into six popular sciences??"

"I was so moved, in order to make up a ten, the light curtain deliberately disassembled and sorted for us. "

"Uh... Maybe it's perfect, haven't you noticed? Light curtain science likes to make up ten of everything. "

"Don't say 880, I just found out!"

“......"

Chen Yu made a simple move, and the ancients of all dynasties were collectively silent.

[Continue to popularize science.] 】

[From the remaining minerals, there are three kinds of minerals. 】

[1. Silver ore. 】

[Silver ore: ore from the mine through manual or mechanical mining, containing the main metal silver, and other metal impurities. 】

[As the main raw material for silver production, there are 12 kinds of ores: natural silver, silver-gold ore, pyroxene silver ore, dark red silver ore, light red silver ore, horn silver ore, brittle silver ore, antimony silver ore, selenium silver ore, tellurium silver ore, zinc-antimony cubic silver ore, sulfur antimony copper-silver ore. 】

[Silver, because of its white color, is called silver, as opposed to gold. 】

[Use it more as currency and decorations.] 】

[In ancient times, it was called silver when making currency. The color of pure silver is white, mixed with impurities and metallic luster, the quality is soft, and it becomes hard after being mixed with impurities, and the color is gray and red. 】

【History:】

[In ancient times, human beings had an understanding of silver. 】

Silver, like gold, is a precious metal with a long history of more than 4,000 years. 】

[Due to the unique excellent characteristics of silver, people have given it a double value of currency and decoration, and the silver dollar used before the liberation of China is a silver and copper alloy based on silver. 】

[In the Qing Dynasty, 1 tael of silver was equivalent to today's 400~500 soft sister coins. 】

[Silver, on the other hand, is more reactive than gold, and although it is about 15 times more abundant in the earth's crust than gold, it is seldom found in a single state, and therefore it is found more than gold.] 】

[In ancient times, people already knew about mining silver, and because the amount of silver obtained at that time was small, it was worth more than gold. 】

[Between 1780 and 1580 B.C., the code of the Egyptian dynasty stipulated that silver was worth twice as much as gold. 】

[Even in the 17th century, the value of gold and silver in the neon country was still equal. 】

[Silver was first used for ornaments and tableware, and later as currency.] 】

[Silver, always shining with moon-like brilliance, the original meaning of silver, that is, the meaning of "bright". In China, silver characters are also commonly used to describe white and shiny things, such as Milky Way, ginkgo, silverfish, white fungus, screen, etc. 】

[In ancient China, silver and gold and copper were often juxtaposed, called "only gold three products". 】

[The book "Yu Gong" records the "only gold three products", which shows that silver was discovered in China as early as the 23rd century BC, that is, more than 4,000 years ago. 】

[In nature, silver often exists in the form of sterling silver, and people have found a piece of sterling silver weighing 13.5 tons!]

【......】

【Silver Distribution:】

[1. The world's largest silver mine - Australian Daria Cannington lead-zinc-silver mine. 】

The mine is located in Queensland, a historic mining town in the north-west: Mount Isa. 】

[It is a blind deposit, buried at a depth of 10~60m]

[The mine has reserves of 7.18 million tons of lead and zinc and 23,000 tons of silver. 】

[2. The world's second largest silver mine - Mexige Proano Silver Mine. 】

[The mine is located in the middle of Mexico, with an annual output of 983 tons of silver in 2001. 】

[3. The world's third largest silver mine - Woolly Bear Country Ducate Silver Mine.] 】

The mine is located in the country of Mao Xiong, a famous polymetallic producing area, Magadan. 】

[In 2003, the mine's production increased by 250% to 410 tons. 】

[Just one mine accounts for 60% of the total silver production of Mao Xiong Country.] 】

【......】(cfcf)

There is no science about its use. (If you read a violent novel, go to Feilu Novel Network!)

The ancients have long been impatient, their excited hearts!

"Recruit the crew and cross the sea together to dig for silver, is there anyone together?"

"This brother, no, father-in-law! Be sure to bring your little brother, I am not afraid of danger at sea, I am afraid of poverty for the rest of my life!"

"I can't help it, I'll borrow a boat tomorrow, I'll also recruit people, is anyone coming?"

"I!

"Take me one, dude!"

“......"

The madness of the ancient people directly alarmed the government.

A large number of officials took to the streets to drive away the gathered people.

But that didn't stop them from wanting money!

Qin Dynasty.

Hu Hai was stunned.

So much silver, all dug up, he can't spend it in ten lifetimes!

It's so cool, isn't it?!

I must advise my father and let him go to sea to dig for silver!

Of course, it's best to go yourself.

Hu Hai coughed lightly twice, and walked forward to salute, "Father, my son thinks that it should be as soon as possible..."

"Hai'er!"

Ying Zheng's shout directly interrupted his thoughts, "You're right!"

"How can a widow sit idly by and let the treasure wander away and ignore it?"

"Whoever finds these ownerless things first will be his. "

"The widow has thought of the names of these silver mountains, just wait for the soldiers of Great Qin to come in person!"

Hu Hai gasped directly after hearing this!

Ginger is still old and spicy!

Daddy is Daddy!

Before he finished speaking, his father already knew what he was thinking, and he could see further!

Yuan.

Kublai Khan's eyes were straight when he saw it!

"So much silver!"

"Okay, let me see it, it's all mine!"

After the excitement, he was a little annoyed.

It's all to blame for the heavy cavalry not being good at water!

Otherwise, a unified world is just around the corner!

Ming dynasty.

Zhu Yuanzhang almost lost control!

Why is the treatment of Ming officials so poor?

In addition to not trusting them himself, the more important point is that the country was too poor in the early Ming Dynasty!

The people can't afford to eat, and it is difficult for the state to collect taxes.

Where is the money to be given to his officers?

He thought that there would be other currencies instead of silver, such as the Daming treasure banknote.

But that thing is just a piece of paper after all, if it weren't for the print on it, it would be a piece of waste paper entirely!

Compared with the Daming treasure banknotes, the people believe in the purchasing power of silver more.

But now, Zhu Yuanzhang sees an opportunity for change!

Who said there wasn't enough silver?

There are so many silver mountains overseas, just dig one, it's enough for the Ming Dynasty!

Zhu Yuanzhang immediately shouted: "Quick, quick, quick! Remember all the silver mountains clearly!"

"It's time for our Daming's treasury to be expanded. "

Many officials also wept with joy.

It's been a long time.

It's a little bit of a dawn, and it makes people want to cry!.