The Book of Appreciation

While helping the doraemon to arrange sleeping bags and food, the sparrow explained worriedly:

"I must come back tomorrow night, Maomao, Brother Wu's safety is in your hands, although I know you...but..."

"My card, you are the Emerald King, who are you not here to stare at?"

Wu Di couldn't bear it anymore. If he kicked this kid, wouldn't the scissors be smashed by the hammer?Who told you not to win three against two?When I play this game with your sister-in-law, we always win or lose in one game. If we lose, we change it to two games in three games. If we win two games in three games, we change it to win three games in five games. It even made it into the world championship of billiards... the final!

The robot cat was carrying a big bag of food and water, looking at the enthusiastic Wu Di, hesitantly said:

"Fifth brother, are we going to take these things to find the mine?"

"Hehe, what can compare to your fifth brother's eyes? These are truly piercing eyes!"

Doraemon nodded. If it wasn't too incredible, I would definitely agree with what others said that you have clairvoyant eyes!But what is it at this moment, if you stand still with your eyes closed, if you stretch your arms towards the sky, will you be summoning the upper body of the great god?

Every few kilometers Wu Di walked, he had to use the heavenly book to inhale spiritual energy, but the river valley was really not strong enough, and he walked for more than three hours, but he didn't find anything!

Guatemala is located in the tropics and is known as the country of forests. More than half of the country is covered with forests.But this is an ancient river course, except for big stones and small stones, there is really nothing to see.Wu Di looked at the sky and asked:

"Doraemon, how far have you traveled? Where do you spend the night?"

Doraemon looked at the GPS in his hand and replied:

"It's about sixteen or seven kilometers away. Why don't we take a break? In the evening, let's see if we can find a small cave on the river bank. If it doesn't work, let's go back?"

"No, there should be emeralds in this river valley, otherwise there would be no deposits in that mine. Let's walk a little longer today and rest if we can't walk anymore. The half of the river valley is nearly a hundred miles away!"

The night in the river valley was quiet, and both of them wore high-top rubber shoes, mainly because they were afraid of the invasion of snakes and insects, but this caused their feet to sweat profusely.In the middle of the night, Wu Di finally found a big rock and sat down on it.

"***, find a place to rest, if you go any further, your feet will be cooked!"

"Okay, fifth brother, take a break first, let me show you my hand."

The doraemon agreed and removed two half-meter-long snakes from the package.

"This thing, if you can catch a few of them when you are in the wild, it is extremely delicious. It's a pity that our area has been caught! You think, there are troops doing this every two days, and this snake reproduces like a mouse. It can't keep up with us!"

When the sun showed its red face from the east, Wu Diyouyou woke up from his sleeping bag and looked at the energetic doraemon moving his arms and legs, feeling a little embarrassed.Yesterday, it was promised to be alone for three hours, but in the end he slept until dawn!

"It's okay, we didn't have any problem staying up for a few days when we were performing missions! Fifth brother, are you still walking along this river valley today?"

"Let's go, there's not much left. Since I'm here, I won't be reconciled not to take a look. Maybe the mine is in the mountainous area at the end."

After walking for another morning, Wu Di pointed to a hill on the left and said:

"From the map, you should be able to see Li Dingqier's mine when you turn over this mountain. That guy claims to have hoarded more than 2 tons of gem-quality jade. Or, let's find a chance to snatch him away?"

The robot cat smiled and said nothing, it was easy to snatch it, but you can't transport this thing away! More than 2 tons of stones are probably enough to build a cemetery, right?

"Hehe, it's good to build a tomb with emeralds, but I'm afraid that someone will miss it. The third uncle made many people dream of that dream..."

The river valley changed its course in front of a big mountain, and there is a real big river further on. Wu Di shook his head helplessly. Is it really difficult to go into the mountain?

"Let's walk back along the side of the mountain over there to see if there is anything in this mountain."

The robot cat nodded. Although he didn't have much knowledge about prospecting, he also knew that walking around like two people was purely child's play.But since the fifth brother is willing, let's treat it as a long-distance training, but the things on the back are much lighter than before.

The scenery on the side of the mountain is much more beautiful than that in the valley, and there are unknown wild flowers and shrubs everywhere, but the speed of progress is much slower than when we came.The robot cat looked at the distance and contacted the sparrow with a satellite phone. It must be impossible to go back tonight.

Seeing that the moon has quietly climbed up the mountain, the woods on the mountain also began to become quiet.The robot cat glanced at the dark mountain worriedly, and was about to propose to spend the night in the river valley, when suddenly Wu Di stopped and stood there blankly, his eyes full of astonishment.

"What's wrong? Fifth brother?"

Wu Di shook his head and said:

"Let's go, walk another three or four kilometers, and find a place to spend the night."

This place is about seven or eight kilometers away from the place where Wu Di used the heavenly book to absorb spiritual energy last time, so he used the heavenly book to verify it out of habit. He thought that he would have to continue trekking after trying it, but he did not expect this time to be rewarded. !

Just when he let go of the Heavenly Book, thinking that there was nothing to gain and was about to call it a day, at the front left, about four kilometers away, at the edge of the Heavenly Book's induction, a huge torrent of spiritual energy roared into his body!In an instant, Tianshu, who hadn't been aware of it for a long time, jumped out from some corner of his body, as if he was a wave player, excitedly flying up and down in the torrent, having a great time playing.

This torrent lasted for a full minute, and Wu Di judged from the intermittent aura afterwards, it should be that the distance that Tianshu can sense is not enough, and the mine is not over yet!

A torrent that lasts 1 minute and doesn't end?How big is that mine?And judging from the concentration of aura, this mine is probably not only big, but also seems to be of good quality.

Wu Di suppressed the excitement in his heart and walked forward. If the place was not bought, Lan Meng would no longer have to worry about raw materials, and he might even be able to hold several public offerings of Guatemalan jadeite in China!

After walking for more than an hour on the three-kilometer road, Wu Di's clairvoyance eyes could already see the place where the mine was sensed just now, but why didn't he see the emerald?Could it be that the distance judgment is wrong?

In front of him to the left is a small valley, and to the left of the valley is a small hill with dense forests. This kind of hill should not look like a mine.Because according to the strength of the aura, most of this small mountain will be emerald ore, where else can there be any trees?Grass is great!

Could it be the big mountain behind this hill?Or is it underground in the valley?

As he got closer, Wu Di gradually discovered something unusual. There is a mine here, but it is not an emerald mine, but a gold mine!In the part of the valley close to the top of the mountain, and in the lower half of the top of the mountain, which is more than 20 meters deep into the mountain, there are all shiny gold-bearing ores!Some of these ores are the same as stones, but you can see a little bit of golden light when you see them through. Some of them are simply large pieces of golden crystal particles mixed with quartz particles, and some of them are simply a whole piece of golden yellow!

My God, this mountain is simply a golden mountain!If the yellow substances seen are all gold, how many tons of gold can be produced from this large gold mine that almost fills half of the mountain?Ten thousand tons or one hundred thousand tons?How much is that?It seems that the number of digits in the calculator is not enough...

Calm down, you must be calm, there will not be such a high content of gold mines in the world, and it is absolutely impossible for all of them to be gold.

The grade of gold in gold mines with general industrial value is 2-3 gram tons, rich ore is 5-50 gram tons, and ultra-rich ore is 50-500 gram tons.In the Ryoko Mine in Kagoshima, Japan, the gold content of a ton of gold ore is only about 1 grams, and it dares to claim to be the highest-quality gold mine in the world. It is conceivable that the gold content in the gold mine is low.

Although it is really impossible to know the specific gold content by visual inspection, but in this place, it should be no problem to exceed 50 grams in Kagoshima, right?

The gold deposits formed in the natural changes can be roughly divided into three categories: rock gold deposits, placer gold deposits and associated deposits.In the world, the reserve ratio of rock gold, associated gold and placer gold is about 70:15:15.This is a standard rock gold mine.

Gold has a sulfophilic surname, and is often closely symbiotic with sulfides such as pyrite, arsenopyrite, galena, and stibnite.At the same time, it also has a copper-friendly surname. It occupies the edge position between copper-friendly and iron-friendly elements in the periodic table of elements, and belongs to the same subgroup as copper and silver.

Chalcopyrite is also golden yellow, similar in appearance to gold.Then, the gold in this place should be based on chalcopyrite as the main carrier mineral.

Wu Di looked carefully for a while, and found that the situation didn't seem as optimistic as when he saw it just now, and he must have been dazzled just now.However, there should be about 30 grams in this way?Or 50 grams?It really doesn't work, even 5 grams will do!

With the current level of dressing and smelting technology, more than 0.5 grams ton has industrial mining value!Wu Di took a look at the ore veins deeply pierced into the mountain, like a wild dragon with earth brown dotted with golden spots, as if he couldn't see the end at a glance!

No, no!There is pyrite in the carrier mineral of gold. It seems that most of the pyrite is earthy brown. Could it be said that most of the earthy brown is gold-bearing pyrite?How should this gold content be calculated?

Seeing Wu Di standing there blankly, with an extremely rich expression on his face, the robot cat couldn't help but cried out worriedly:

"Fifth brother, it's too cold here on the side of the mountain, why don't we go back first and spend the night in the valley..."

Haha, by the way, go back first, first go back and get the mining rights of this mountain range, and then find professionals to explore the reserves, even if you mistake the chalcopyrite mine for a gold mine, look at this deep into the mountain The mine veins here will never lose money, right? (To be continued.)