After discovering so many precious tree species, Yu Shan’s perspective on the problem is different because he suspects that these tree species are specially planted by someone.

The reason for this idea is entirely because the distribution of these tree species is too regular and does not seem to grow naturally.

After several days of exploration, Yu Shan knew that the most common tree in the forest was iron birch. This species of tree that was made of iron sandalwood could be so solid that the bullet hit the tree, just like a thick steel plate, without moving at all.

Its wood is three times harder than oak trees and twice harder than ordinary steel, so it can be used as a substitute for steel and used in the defense industry.

Because it is very hard and heavy, it sinks when it enters water. Even if it is soaked in water for a long time, its interior can remain dry for a long time.

It can be said that this is another tree species comparable to thorn oak, and there are much more than thorn oak. Of course, in addition to these tree species, there are also some very hard tree species.

If those tree species are placed on the earth, they are all precious tree species. Some time ago, Yushan purchased beeswax, but he had been visiting the antique market for a long time, so he knew very well about those who played with wood in cultural relics.

For those who play wood, there are mainly three types of people. One is to play with color, which means that the pattern is beautiful and the color feel is beautiful, generally sea yellow, blue yellow, etc.; the other is to play with fragrance, such as rosewood, Laoshantan, etc.; the other is to play with "hard", which means density. What's so fun about this?

The greater the density of the wood, the more crystal texture it feels after patina, and the clearer the sound of metal and stone when it collided. Therefore, Yu Shan, who was fine, once dug up the wood with the highest hardness and learned how many medium woods there are, which can be won by density.

I won’t talk about the hardest part of the world, and I won’t mention the golden camphor tree. I will just talk about some not-famous ones, such as the sandy land that Yushan and the others just passed by. This kind of land is like a desert, so some special trees and desert iron trees have grown on it.

Listen to its name, you can feel the hardness a little. This kind of wood is also found on earth, but it does not grow in China. It grows in the deserts of southwestern United States to northwestern Mexico.

This tree, called desert ironwood, has a very slow growth rate and takes a hundred years to become a material. Therefore, its hardness is particularly high, reaching 1.2 grams per cubic centimeter, and its properties are extremely stable. It is generally used as advanced knife handles.

Next is the small-leaf red sandalwood. As everyone is too familiar with this, I won’t say much about it. Its density range is generally between 1.2 and 1.5. The mahogany standard even uses this as one of the important criteria for determining the authenticity of the small-leaf red sandalwood, that is, as long as it is small-leaf red sandalwood, its density is within this range.

Generally speaking, the density of new materials is mostly about 1.2, the density of old materials is mostly about 1.3, and the amount of materials that can reach 1.5 is small, and it must be the best-quality old red sandalwood material.

These trees are more conspicuous and easy to recognize, so Yu Shan knows them very well.

As you approach the forest there, as long as you are interested and pay a little attention to the trees under the airship, you can find one or several kinds of precious woods.

For example, now, the third type of tree that Yushan and others encountered is mahjong. The place where they grow is a hillside, but this is a stone hillside with almost no land. But in such a bad environment, there is such a forest growing, so it is very abrupt. When you see it, you will notice it by Yushan and others.

Although Yu Shan did not move during this period, Wu Dao and Huang Da were sitting in the airship and wandering around. It was at this time that they collected all the situations around.

Like desert ironwood, the growth environment of mahjong is also harsh. It grows in areas with water deficiency all year round, so it grows quite slowly. However, its texture is quite hard and has a warm color. Some roots are tumorized, rich wood grain, refractory, decay, no odor, and extremely stable properties.

The hardness of mape is comparable to that of red sandalwood, and it is even more difficult. The pipes and crafts made from it are loved by people and can be played with for a lifetime.

Continuing to get closer to the forest, more and more trees appear, and the third most are black yellow sandalwood. This kind of tree gas dry density is 1.25-1.33g/cubic centimeter, making it one of the hardest woods today.

The black yellow sandalwood heartwood is dark purple-brown to nearly black with black stripes. It has smooth cut surfaces, few brown eyes, tight texture, heavy oiliness, clear and varied wood grain, and is called "the wood of the emperor".

Especially the surface, due to its extremely dense, it presents a satin effect and has a very beautiful light feeling.

When I saw that forest, some low jungles were covered with snake-patterned wood on the periphery of the forest.

Snake pattern wood, small crown tree, no roots, 25m high, 15m main trunk, 30-50bm diameter, this tree species is the largest wood in the world, up to 1.36.

The heart sapwood of snake-patterned wood has obvious differences, with wide sapwood, light yellow and white, and dark reddish brown heart, which is extremely slow to form.

The patterns are volatile, similar to snake patterns, hieroglyphs, and English letters, so they are known as snake patterns, letters, and oracle bone wood, and have a very decorative effect.

There are so many good woods, several types that appear within a range of forty kilometers not far from the mountain range. If it is accidental, it is really hard to convince people. Therefore, when doing something, Yu Shan has a little more scrutiny.

"Let's go and collect the hearts of the tree first, or go up the mountain first?" After arriving at the periphery of the giant tree forest, looking at the continuous forest, the fifth knife asked.

"Go into the mountain! Strengthen your strength first, and we can collect the resources here at will." Yu Shan waved his hand to give an order.

Although he did not enter the forest, Yu Shan could see very clearly what was going on inside the forest.

Although the trees are too dense and there are not many beasts, it does not mean that the forest is safe.

You should know that the terrain in the forest is even more complicated than in the sea of ​​grass. In such a place, it is easy to be attacked by ferocious beasts, so even if there are not too many groups of ferocious beasts, there is no good place.

The view on the mountain is even wider. If you choose a suitable destination, the safety will be more secure.

"This is the ruins you were staying in?" Yu Shan asked, looking at the undulating peaks in the distance.

There are sometimes large areas of buildings between the peaks, but these buildings are seriously damaged, with only some broken walls left.

Huang Dadao: "Yes, it's here. It's more complicated than what we see now. Have you seen those buildings? The exposed buildings are actually discovered by people and can be occupied. And hidden in the mountains and valleys, there must be no buildings that have been discovered. Those are the real treasures."

"There are not all so many buildings?" Wu Dao said in surprise.

Huang Dadao: "Looking at the terrain here, especially the buildings in the mountains, is it very unreasonable to be distributed? With the distribution characteristics of some buildings, should there be buildings in some places?

But there was a blank space, or a dense forest or a canyon. Some people speculated that there were hidden buildings there, but they could not find it, maybe it was less than the time to be born."

Yu Shan nodded. This speculation is correct. If this is the resident of a large sect, then the distribution of the building should be regular when they build the sect sect.

For example, the buildings where the mountain gate are located look very inconsistent, especially the exposed things that look like door posts, only half of them are seen.

The other half must be opposite, but there is nothing there, so it feels weird no matter how you look at it.

There are also several peaks on the mountain. There is often a complex of buildings on the peaks around them, but the peaks in the middle are covered with clouds and mist, so I can't see clearly what is on it, which is obviously unreasonable.

Of course, there will definitely be buildings or spiritual fields on the hillside of each mountain, or some flat places with rich spiritual energy. However, now, the buildings and spiritual fields in some places have been exposed, and some peaks are not exposed, which shows the problem.

"There are many ferocious beasts on the mountain?" Yu Shan asked.

Huang Da was silent for a while before saying: "If we calculate the area of ​​this mountainous area, not too many ferocious beasts, but even rare. If we simply count the number of ferocious beasts, then there will be a lot."

"Look there, there is the place we intend to occupy." At this moment, the airship flew over the mountains and came to a small mountain hidden among the many peaks.

This mountain is not tall, but it is thick. From a distance, it looks like a platform suddenly grows in a valley, so there is a large area of ​​flat ground on it, and the connection between it and the surrounding peaks is also very smooth.

This place is the center of the entire ruins, so the buildings are dense. Looking from the air, it is like the nine-cage grid, with ancient heritage buildings everywhere.

I don’t know how many years the buildings here have existed. They look very old, but the walls of many buildings are still there, so the terrain here becomes very complicated.

If you look in the air, you can still tell the direction, but if you enter it, it will definitely be more troublesome than a maze.

"This may be the ruins of the sect halls of ancient sects. In addition, only buildings allow us to easily discover enemies, so it is very suitable for us to explore." The fifth sword said.

Yu Shan nodded and recognized the place. It can be seen that it is composed of courtyards, or palaces.

And every palace has yes, with mountains, water, fields and land. Of course, the most conspicuous ones are the big trees that are lonely but towering in the yards.

Seeing these big trees, Yu Shan asked in his heart: "Huang Da, when you come in, you didn't appear directly in front of the big trees on the periphery?"
Chapter completed!