Rao Ya picked a piece of material from a shop in this jewelry and jade city.

This huge piece of material, weighing hundreds of kilograms, looks at the leather shell, it should be the material of Moxisha's open mouth. But it's not the old open material, but the partial field material.

The jadeite raw mineral area of Bagan is divided into traditional production area and newly developed mining area. Jadeite is a mineral that, according to modern geologists, should be formed at high pressure and low temperature. This low temperature is not really low temperature. It's just that the temperature is relatively low relative to the magma.

The conditions for the formation of such veins are extremely high. It takes the coincidence of various factors, so there are not many jadeite veins in the world. In the vast China, there are no decent jade veins. Only in Bagan is gem-quality jadeite produced.

Of course, the jadeite in these jadeite veins is also divided into high and low grades. In a long period of time, many jadeite veins exposed to the surface of the earth, because of a long period of weathering and breaking, some jadeite with poor texture will be broken into sediment in the natural weathering. Some jadeite of better quality will be weathered into gravel.

Therefore, generally speaking, only jadeite with the original stone shell and the weathering of the shell is relatively high-quality jadeite that has been naturally screened.

This quality is relatively high, not to say that the quality of these jadeite rough stones is glutinous ice, ice, or glass. Rather, it is of higher quality than those jadeites that have been weathered and eliminated.

However, the formation of jade veins in that place in Bagan was also different in height and location. The emerald veins exposed to the surface are also different in height and altitude. As a result, many jadeite veins have different degrees of weathering. There are some jadeite veins that were originally exposed to the ground, and the weathering is very violent.

The entire mountain was turned into gravel in the low-lying part of the river.

And those jadeite gravels that have weathered the most violently and for the longest time will be of high quality. It will be scattered on the surface of the earth, and it will be easy to be found. Many people say that the discovery of this jadeite was because the merchant picked up two stones from the ground and brought them back to the Central Plains with the horse.

As a result, the stone skin on the gravel was gradually washed away. So the jadeite crystal clear, the color of the quality to come. The bright luster, brilliant color, and hard texture of jadeite were far superior to the various nephrite textures that were prevalent in China at that time.

Therefore, jadeite became popular in China all of a sudden. And in the former Qing Dynasty, it became a royal specialty. Of course, the jadeite of that era was extremely dense and hard because of its texture, so the processing speed was not fast. Moreover, the texture of these processed jadeites is also average.

But anyone who has played jadeite knows that the texture of many jadeite in the late Qing Dynasty is not as good as the jadeite ore dug out in the era of large-scale mechanized mining later. Of course, jadeite materials such as those treasured and liked by the women at the top of the pyramid in the past dynasties are not among them.

This is the beginning of the introduction of jadeite into China, and it is also the beginning of jadeite's increasing value. In that era, the old mining site was called the old pit. Among them, the most famous is the jadeite from the two mines of Muna and Houjiang!

Therefore, the old pit jade is famous all over the world. The piece of colorful ice jade that Rao Ya selected just now is the big horse chopping material at the entrance of the old field!

The jadeite with a relatively short weathering time and a relatively short mineralization time is more difficult to mine because of the less natural screening and selection, and is called Xinchangkou. The jadeite ore formed by it is relatively thin in weathered shells, and some are more fragmented. After cutting, there is also a lot of waste and less good material.

However, in order to make money, the people of Bagan will also name these materials from the mouth of the field with the name of the jade rough stone of the old pit in the main field, such as Damacho, Moxisha, Muna, Houjiang, and so on......

Just like the material selected by Rao Ya, it is the Moxisha of the partial field.

The cross-section of this piece of jadeite, which is more than 100 kilograms of jadeite, is the size of a chair, and is divided into two pieces that are roughly similar. However, the cut jadeite jade material was full of black streaks. Moreover, the texture of the stone itself is not considered dense. These black streaks are the black ringworm of jadeite.

The name jadeite is called jadeite because of a waterfowl with beautiful plumage. This bird has bright feathers, and the color of the feathers is pure red and pure green.

The red jadeite, which is generally cut by the old pit and the horse, has a long weathering time, and has iron elements into the jadeite rough in it.

The green jadeite is a color band formed by the intrusion of chromium hydrothermal fluid in the geological activities of jadeite. Of course, after these chromium hydrothermal fluids invade jadeite, they will also form two forms after a long weathering process.

One of them is green jadeite, which can be processed into jewelry. On the other hand, it is this kind of melanosis that has a coarse texture due to weathering and erosion.

These ringworms usually appear on the surface of the jadeite rough in a variety of forms. In addition, it is often mixed with the green color of jadeite.

Therefore, for jadeite rough, where there is generally ringworm, there is green. Under the ringworm in no form, there will be different greens. The people of Bagan have a unique summary of the relationship between ringworm and green.

Therefore, this piece of jadeite, which has a rough texture, will be cut by the seller with one knife. According to the performance on this jadeite shell, if this knife goes down, if it is cut up, you can get a lot of jadeite material with beautiful green flowers all over your body.

Unexpectedly, after this knife, the black ringworm on this huge rough stone not only did not dissolve in the jade jade, but also pierced deeper and deeper, destroying the original jade flesh that was not very good as a whole.

As a result, the overall value of this jadeite rough has fallen!

Nowadays, if you only look at the performance, this piece of jadeite raw material has basically become a waste material, and there is not much value to be used. In the future, the best fate will either be cut into floor tiles and used to pave walls, or it will be processed into some worthless jade jewelry by machine and sold at a very low price.

The owner felt that these two roads were bound to lose money. Moreover, there are some processing fees and transportation costs. It's not cost-effective, so I put it directly on consignment with the owner of this shop. Sell as much as you can. Anyway, there will always be fools who will take over......

And today, Rao Ya has become a complete fool in the eyes of the owner of this shop. To find this site, please search for "6 Mao" or enter the URL:.