"Like a mine?"

In front of the swarthy hole, Bi Fang didn't dare to approach it.

In the face of the unfamiliar cave, Harley was even more cautious than Bi Fang, with his head lowered, the muscles in his shoulder blades bulging high, and his eyes looking straight ahead, silently observing.

This attitude is just like the ignition of the car, although it has not stepped on the accelerator, but it is already clearly observing the road conditions, in the state of the engine running, and can move at any time.

The audience also looked very surprised.

[Really fake, is there a mine here]

[Nonsense, have you forgotten what Fang Shen said before, Kenya is rich in minerals? 】

[So what kind of mine is this, it can't be a gold mine, right?] 】

[Gold mine,, isn't that going to make a fortune? ] 】

[It's your turn to get rich, aren't you dreaming, if there is really gold in it, it will be wasted here? 】

[It seems to be the same]

"There are a lot of edges and scratches on the edge of the cave, and there are a lot of rubble scattered around, which is a clear sign of artificial excavation."

"If it's a natural cave, its edges are quite smooth under the wind and sun, and of course, there may be that kind of landslide or crack, and the crevices formed by chance, but combined with the terrain here, it is obviously not a similar situation."

Whether the cave is artificially excavated or natural is basically something that can be seen at a glance.

Since it is excavated by hand, it will certainly not be done for no reason, and there must be enough hidden interests in it to drive people to carry out huge engineering actions.

Bi Fang explained a little, then threw down his backpack, lightened his load, and trotted back, and the cheetah hurriedly followed.

After running forty or fifty meters in succession, Bi Fang looked up and had a panoramic view of his surroundings.

A rocky slope.

No, it should be said that there are dozens of rocky slopes.

More than a dozen kilometers nearby, it is no longer a flat and wide prairie, but has turned into a "hill" composed of rocks in front of you.

Under the exposure of the sun, the stone shows a distinct yellow bright color, with sharp edges and corners.

Farther away, it looks like it's made up of pixels.

On such a stretch of pixel dirt slope, there are still green grass patches from time to time, like the few black gray hairs left on the bald uncle's head.

"Look at the rocks around you."

Bi Fang looked down, found a loose piece of yellow stone, dug it out directly, and threw it down the dirt slope.

The stones tumbled and fell, hitting the rest of the stones halfway through, breaking into several pieces, which were not very hard.

Bi Fang patted the ash on his hand: "It's kimberlite, it should be a kimberlite mine, and it may be a diamond dug in it." ”

[What is Kimberlite Rock]

[I guess it's related to diamonds]

[You're really smart]

[It's time to show off your skills again]

Bi Fang laughed: "There are two most typical primary deposits of diamond, one is the potassium-magnesium porphyry type, and the other is the kimberlite type, which is also the most common type in Africa. ”

"The rock is very unstable, and when exposed to the air, it quickly differentiates and becomes a yellow, brittle substance called a yellow ground, which, as we just saw, easily breaks into small pieces."

"The counterpart to the yellow ground is the blue field, and below the differentiation zone, the kimberlite is a dark blue-gray rock, which is relatively hard, and is called the blue field, or fresh kimberlite."

Source change app】

After listening to the analysis, everyone in the audience became excited when they confirmed that there was a mine in front of Bi Fang, and that it might be a diamond mine.

The number of viewers, which has declined in recent days, has resumed its upward trend.

[I know that Lao Fang knows everything]

[Ask Fang Shen if you don't decide in trouble]

[6666, this is not allowed to go in and see]

[The hole must be drilled, right]

[Hurry up, go in and have a look, what if it can be shabby?] 】

"Don't worry, it's customary to make a torch first."

Bi Fang did not rush back to the mine, but found a wooden stick of the right size and thickness nearby, as well as some small branches and wooden velvet, and then returned to the place where he threw his backpack, took out two pieces of flint from the bag, and then took out animal fat and rope.

The rope is soaked in animal fat, and after it has absorbed enough oil, it is wound around one end of the wood.

"Animal oil is not resistant to burning, so we have to start a small campfire and then ignite it with flames."

A few thin sticks are built in the shape of a pyramid, topped with a layer of velvet made of wood fibers, and finally rubbed with flint.

The whole process is seamless.

For Bi Fang, making a fire in the wilderness is already as simple as eating and drinking.

Soon a roaring bonfire appeared in front of everyone.

Bi Fang put on his backpack again, held a torch, and carefully entered the cave under the expectation of the audience.

Compared to the brightness of the outside world at noon, the cave was dark, and the light almost completely dissipated after about four or five meters, falling into total darkness, and the only light source was the torch in Bi Fang's hand.

In a confined and small space, the sound is constantly reflected and repeated, overlapped, amplified many times, and emotions many times, and the sound of footsteps and breathing becomes very conspicuous.

The orange light of the fire shining on the yellow rocks is a bit dazzling, and it makes people lose a slight sense of distance.

Not only that, Bi Fang, who was walking on the right side, changed the torch to his left hand, and just wanted to see the condition of the rock wall on the left, he found a huge spider on the rock wall on the left, lying quietly on the rock wall.

What's even more amazing is that this spider is not only huge, but even weaves webs, which at a glance are almost more than half a man's height in diameter!

And there was more than one spider, several large webs shrouded in it, almost trying to wrap Bi Fang's entire person, the closest above his head, the distance was less than an arm's length.

This scared the audience.

Even Bi Fang himself was shocked, and his back was sweating slightly.

With his strength and level, unless he encounters tigers and lions, most of the time he is not afraid of coming hard, he is afraid of encountering poisonous snakes and spiders, and he is easy to capsize in the gutter if he is not careful.

It's just that it's a big net.

So far, the net is more than one meter large, which is quite rare in nature.

There are also a lot of locusts stuck to it, and I don't know if it's the group I met a few days ago.

Bi Fang didn't come closer, the spider web was very tough, but it was afraid of fire, and the slightest close approach to its own torch might cause these spiders to suffer a catastrophe.

Looking at the spider not far away, the size of a palm, Bi Fang thought in his mind.

A spider the size of a palm, with a web one meter in diameter......

"It's a Comache spider, nothing dangerous."

Bi Fang recognized it.

"This giant spider has a huge body, but it is non-poisonous to humans, but it bites people very fiercely."

"Their webs are usually more than 1 metre in diameter and are strong enough to catch smaller birds, bats or lizards."