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Whether it is Chen Ran or Yang Shijie, they have imagined this cave as a mysterious treasure place before this, especially Chen Ran has read the letters left by the person in the black room, in the letter, the person in the black room has been emphasizing what shocking secrets this mysterious place hides, plus the mysterious stones in his pocket, so that Chen Ran also imagined this place as either hiding a large amount of treasure, or the cave hiding a dangerous place like Ghost Bear Ridge, in short, it is a bit fantasy or fantasy. And Yang Shijie's imagination is different from Chen Ran, but it is also an interest, although he didn't know what the man in the black room said, but from the Japanese skeletons seen along the way, he also guessed that this place was a thrilling place, to this rock cave, saw the rock cave surrounded by dense large and small stone caves, the two of them also imagined that so many cave entrances were likely to be the suspense left by the owner of the cave, at that time, the two were stunned for a moment because of this, however, after seeing the debris piled up on the ground, They reacted suddenly......

Where is the suspense here, it is clear that it is......

A mine. (The fastest update speed is on the Aishang Novel Network biquge.info)

Yes, this rock cave is simply an abandoned mine.

This can be seen from the environment in the rock cave in front of you, the messy baskets on the ground, and some simple tools.

Do you know, there are still some black ores in a few baskets.

This result made Chen Ran and Yang Shijie both stunned, obviously they didn't expect this place to be an abandoned mine, and the cave they just came in was just a passage dug out of the mine for mining ore, and it was obvious that this mine was not a modern product, and it was mined for at least 60 years.

Knowing that this rock cave is a mining cave, Chen Ran is quite strange, after all, this is his hometown, although he has not lived in his hometown for a long time, but most of his childhood memories are still there, especially this "back mountain" in the village, even if he has not been to this place, then his grandfather and the people in the village must have been to this place or passed by here, but after so many years, no one has found that there is such a mine under this mountain range. It's like suddenly discovering something you don't know about in the territory you know best.

Of course, Chen Ran just sighed for a moment, and then he was relieved, thinking about it, wasn't the earliest Tang Dynasty mine site discovered in Shangrao, Shanxi Province also discovered the year before last? In ancient times, mining ore was not as much fanfare as it is now.

I just don't know what kind of mine this mine is?

When he was stunned, Chen Ran had already bent down and picked up a piece of ore that fell at his feet, although he didn't need to bend down at all and directly released the energy aperture to detect, which was more convenient and accurate, but in fact, when he could see with his eyes, he still liked to see with his own eyes, for no other reason, just used to it.

When Chen Ran picked up a piece of ore and observed, Yang Shijie also reacted, and quickly focused the blazing light on the ore in Chen Ran's hand.

The ore in Chen Ran's hand was jet-black on the surface, and it looked a little like a coal mine, but it was not as smooth as a coal mine or an iron mine, and it was a little astringent to the touch, like a small pimple and a small pimple.

Chen Ran looked at it over and over again with the light in his own hand and Yang Shijie's hand, but this piece of ore was black, and he couldn't see anything on the surface.

couldn't see it, Chen Ran also thought about using the energy aperture to probe it and investigate, but before he could release the energy aperture, he suddenly noticed a golden wire.

"Could it be that this is still a gold mine?"

Chen Ran's heart suddenly moved, he was stunned for a moment, and then quickly looked over, this time he really saw a golden wire, this gold wire is not very eye-catching, if you don't look carefully, you really can't find it.

Chen Ran saw this golden thread, and Yang Shijie obviously saw it, stunned, and suddenly surprised: "Gold mine? ”

Chen Ran didn't answer Yang Shijie's question, because at this time, he had already released an energy aperture without hesitation to probe into the interior of this ore.

"What a gold mine!"

The little bit of gold in his eyes suddenly made Chen Ran laugh happily, although even if a gold mine is discovered, this gold mine may only be a waste mine, or it may be just a small mine that is not worth mining at all, and even if a gold mine is found, it is not his own, but this unexpected feeling is incomparable.

This, I am afraid that every Chinese will have this feeling when he encounters it, even if he is a multimillionaire, or even a billionaire, of course, how to behave after being happy is not known.

Yang Shijie was obviously no exception, but at this time, he also showed a trace of excitement, and was surprised to take a high-candescent lamp to shine on the other ores on the ground.

Although Chen Ran was happy, he was not carried away with joy, and his happiness was only the instinctive joy of discovering the gold mine, and after he was happy, he was full of curiosity to observe the gold mine.

To be honest, whether it is a jade mine or a gold mine, Chen Ran has a wealth of theoretical knowledge, but he has never seen it, not to mention a gold mine, it is a jade mine, and he has not been to the site of the mine to investigate.

"The taste is so high!!"

Chen Ran also took the detection light and shone around, but he obviously couldn't see anything on the surface of the cave, so after looking at it, he released the energy aperture to investigate, and what he explored first was the underground of the rock cave, and when the energy aperture was detected more than one meter underground, he didn't find anything, but when it was almost two meters deep, his eyes suddenly lit up, and then he seemed to have entered a golden ocean, and he only felt as if his eyes were bursting with gold stars, and his eyes were full of gold.

After being taken aback for a moment, Chen Ran hurriedly used the energy aperture to carefully probe the rock cave, and the results of the detection really surprised and delighted him.

Although the other places he detected were not as high as the gold ore in the rock cave beneath, it was still high, and it was estimated that the grade was seventy or eighty on average.

Grade refers to the gold content of a ton of gold ore and is usually expressed in grams per tonne g/t, with 1g/t commonly used as the cut-off grade.

Factors such as the size of the deposit, ore mining, and the difficulty of smelting are different due to the different types of ores, and the cost is different, and the ore body greater than 1g/t can be used as an industrial ore body, and its development cost is comparable to the profit, but over the years, with the continuous rise in gold prices, even if it is 0.5g/t or even 0.3g/t or 0.25g/t grade gold ore can also be mined, of course, it depends on the place, and it depends on how high the purification technology can reach.

In general, a gold ore with a grade of more than 3 g/t is considered medium grade, while a gold mine above 10 g/t is considered a high grade gold mine.

Of course, this is only a relative statement, and there are no hard and fast rules.

Due to the low grade of gold mines in China, there are very few high-grade gold mines, and the general gold mines can reach between 1g/t and 3g/t, which is good, and most of them are of this grade.

The reason why Chen Ran probed so high is because he only explored this piece of gold ore, the grade of a gold mine naturally has a high place, and there is also a bottom place, but the gold ore grade is generally said to be the average grade of the entire gold mine, as for how high the grade of this gold mine is, it depends on other places.

However, judging from the scene of Chen Ran's exploration, the grade of the ore body he explored should definitely not be low, and after his and Yang Shijie's observation, it was found that this mine has not been mined much, it should have just been surveyed, as for why large-scale mining was not carried out after the survey, I don't know the reason, maybe something suddenly happened and they withdrew before they had time to mine, after all, in ancient times, it was not as developed as information now. Or maybe they had the same experience as the Japanese, and they were wiped out here.

As for what kind of experiences these Japanese soldiers encountered and what kind of shocking secrets they discovered, Chen Ran hadn't found any clues yet, and he hadn't noticed the aura emanating from the black stone.

The reason why he chose to explore this mysterious place at this time was that Chen Ran thought that even if this place was not buried with some big secrets, it might be a batch of treasures buried, but he never thought that the treasures were not seen, but the gold mine was seen one.

Although the gold mine is also a treasure, even if he finds it, it is not his, but the state, and it is obviously not possible to mine secretly, it is not impossible, but it is not impossible to meet him by secretly mining, and the less mining is worth the money is not enough for him to trouble, and if he reads more, something will definitely happen.

It is undoubtedly very troublesome to apply for a license for mining, not to mention that it is not easy to apply for a license, and the cost of mining is also extremely high.

Of course, since this gold mine has been discovered, it can't be thrown away in vain, even if you don't mine it, you must first get the exploration right in your hands.

After exploring in a mine, Chen Ran thought about it for a while, and when he saw Yang Shijie fiddling with two rifles, he went over and looked at it curiously, but he really didn't know much about this, so he could only watch the excitement.

These little Japanese good things were not left, but there were a lot of weapons, at least a few hundred, but they were all rusty and I didn't know if they could be used, and if they could, it would be good to use them as shotguns.

The echo in the mine was too loud, and Chen Ran and Yang Shijie were still wearing gas masks, so the two of them could not speak without talking, and when they saw Chen Ran coming, Yang Shijie handed Chen Ran the rifle in his hand, and deliberately pointed to the bayonet in front of the rifle, which meant that the bayonet could be used.

Chen Ran took the rifle and stretched out his finger to point to the hole on the left where there was a faint light, and motioned to go out and take a look through this hole.

Yang Shijie nodded, and walked over with a detector light in one hand and a rifle with a bayonet in the other, and Chen Ran also followed.

This cave entrance is the most spacious one, enough for five or six people to pass guò side by side, at first glance it is the exit of this mine, that is, the entrance of the cave is a little low, Chen Ran and Yang Shijie have to bend down when they pass guò, and there are also a lot of bones in this mine, the bones here are a bit messy, not as complete as the hole they passed guò before, which makes Chen Ran and Yang Shijie vigilant.

After walking forward for a few tens of meters, the rock cave suddenly turned in a direction, and at this time, the air blowing in was getting fresher and fresher, and Chen Ran took off his gas mask.

When the bend was turned, the light suddenly brightened, but the stone cave was getting lower and lower.

"It's over."

Seeing this, Yang Shijie turned around and reminded Chen Ran, and when he saw Chen Ran take off his gas mask, he also took it off.

Chen Ran nodded, then sniffed again, I don't know where it was, there was a faint smell of medicine, and a fragrance, and it also gave him a very comfortable feeling, which seemed to be the opposite of the feeling given to him by the black stone in his pocket.

Both Yang Shijie and Chen Ran were obviously a little curious about what was in front of them, so they sped up a little faster, and after passing more than thirty meters away, the two finally came to the end smoothly.

When Chen Ran came out of the rock cave and saw the panorama of this place, he was stunned all of a sudden.

[Computer ...... that I repaired for a day yesterday]

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