Is Baiduan mud what kind of purple sand, and is Baiduan mud pot valuable

Duan mud is a general name for a kind of mud that is yellow and light in color after firing, and it does not refer to a single specific mud. Duan mud ore, whether it is the raw ore, or the work after firing, the overall color is yellow, plain and elegant, such as clear water hibiscus, Lingbo fairy, pure and pleasant, plain fragrance, known as "plain heart plain noodles".

From the perspective of the occurrence and performance of mud, there are roughly two types of mud: one is the section mud of white mud and the other is the section mud of symbiotic minerals; From the appearance characteristics of raw ore mud, there are green mud, sesame mud and white hemp mud; Judging from the appearance and color of the products after the pottery, there are golden section mud, beige section mud, green section and old section mud, etc., and the dark green mud that is "matched by the ingenuity of the potter" is also attributed to the section mud.

Geologically, the mud is produced in the stratigraphy of the Upper Devonian Wutong Formation and the Middle and Lower Maoshan Group. The mud in the Wutong Formation is mostly grayish-white, dark gray and grayish-black, and the metallogenic conditions are generated under reducing or strong reduction conditions, and its color is caused by organic matter or dispersed iron sulfide. The mud in the Maoshan group is mostly light green, gray-green and light green, and the metallogenic conditions are generated under weak oxidation or weak reduction conditions, and its color is caused by silicate minerals containing divalent iron ions.

Geographically, the original Yixing clay mining area or mining area or mining area of the first mud and white mud mining area or ore site, all have the output of section mud mud. Among them, the Huanglongshan mining area in Dingshu Town is the main production area of high-quality section mud in Yixing purple sand.

From the point of view of the distribution of ore deposits, the white mud in the section mud and the beige mud with performance close to the white mud are mainly produced between the quartz sandstone close to the mountain belly or the mountain belly, and extend to the mountainside wing. The mud of symbiotic minerals is mainly distributed under the roof of the deposit, and the upper part of the purple mud layer is partly mixed in the purple mud layer.

Baiduan mud is a kind of high-temperature mud in the purple sand mud, and the color is white when burned. The hair color of ordinary duanni is yellowish or cyan. Duan mud is a symbiotic ore of purple mud and green mud, which can also be synthesized, and they all belong to a kind of purple sand mud.

Hello Spike. Valuable white mud is a kind of mud, which is a kind of symbiotic mineral soil of green mud and purple mud in the mountain. Benshan green mud and purple mud are both raw ores of purple sand.

The meaning of symbiosis is natural formation, and the nature of the two stoves is the same, the original ore of the mud is very rare at present, and now the Yixing pot maker began to use the green mud and purple mud of the mountain to artificially deploy to form an unnatural section of mud. Generally speaking, it is difficult to see, and it is even more difficult to see than this mountain, and Duan Ni cannot burn the green face of this mountain.

Section mud is a kind of purple sand mud, which is generally divided into old section mud, raw ore section mud and modulation section mud. And the old section we often mention is actually the original ore section mud that has been placed for a period of time. Therefore, if you want to distinguish between Duan mud and purple sand, you only need to know the characteristics of Duan Ni purple sand pot, and the distinction between Duan Ni purple sand pot is mainly judged from the appearance of light quality, sound discrimination, feel and maintenance effect.

Exterior light quality. Whether it is a mud pot or a purple clay pot, or a pot of any color, it will show a matte mud like jade in color, and the purple clay pot is even more so, with a stronger matte sense and a strong sense of softness.

Auditory voice discriminator. By gently knocking on the body of the pot, listening to the crispness of the sound to judge whether it is a mud purple clay pot is not as crisp as porcelain, generally it sounds dull, and the darker the sound, the better the breathability of the pot. During the production process, there is no crystallization inside the pot body, so the taste of the tea can be retained for a long time when the tea is brewed in a purple clay pot, and the tea soup is not easy to change the taste.

The feel is generally that the mud purple clay pot feels relatively round and smooth to the touch, but because the surface contains fine particles, there will be a certain roughness when you feel it carefully. And the mud purple clay pot is also divided into traditional handmade, or machine-processed, the two are not the same as the processed mud, so there is a fine distinction in the feel.

The effect of raising a pot. Generally, the effect of raising the pot is very fast after getting the mud purple sand pot, and if it is used to make tea for the same number of times and the same number of days, the effect of raising mud in the purple sand pot is much faster than that of the purple sand pot, and the mud raised can be intuitively seen after soaking for a month.

The purple clay pot made of Duan mud is called Duan Ni Zisha Pot, and the high-quality feature of Duan Ni Zisha Pot is that the purple mud particles are not very obvious. It seems that the green mud of the mountain only plays a role in changing its color. There are layers, like jade.

Duan mud can't burn the green of the mountain, and the green mud of the mountain is a very delicate and pure yellow color. Duan mud is used in the firing clay pot industry. The purple sand ware fired by Duan Ni, based on Duan Ni, will also change, not only in terms of color, but also in terms of sand adjustment.

After firing, the sand feeling is very strong, the surface texture is very rich, and the air permeability is very good; After the inferior section mud is formed, the sound is crisp, the air permeability is very poor, the face has no sand feeling, the color is dull, and the texture of sand cannot be seen.

The characteristics of the mud pot in the middle of the Yixing purple clay pot are a must-see for novices who play the pot! The characteristics of the mud pot in the middle of the purple sand pot, what is the mud of the original purple sand section? What is the original section of the purple clay pot and what is the section mud pot?

How to distinguish the true and false purple sand pot mud pot, how to distinguish the true and false purple sand mud, what is the purple sand mud, and the mud pot.

The distinctive feature of the Duanni purple clay pot is that the graininess is not very strong, but it has a sense of layering. When making a pot, adding a section of mud will not only cause a change in color, but also have a sand adjustment effect. So what does purple sand mud mean, I believe many people don't know very well.

Duan mud is also called group mud, is a symbiotic ore of purple mud and green mud, at the same time Duan mud is also a kind of mud material of purple sand, which is currently a very rare kind of mud, Duan mud raw ore is greenish gray, is the grease in the interlayer of purple sand mud, the high-quality characteristics of mud are that the purple mud particles are not very obvious, there are layers like jade. The lithification process of Duan mud is vermilion mud and Duan mud, and most of the Duan mud becomes clay after metamorphosis. Due to its high iron content, the relative lithification age is the longest, and it becomes stony after metamorphosis, so the green mud of Benshan is a special mud in the mud.

The high-quality feature of the Duanni purple clay pot is that the purple mud particles are not very obvious. It seems that the green mud of the mountain only plays a role in changing its color. There are layers, like jade.

Looking at the color of the pot, it is recommended to use green tea for the purple clay pot with light green and yellow color, and it is recommended to raise it with green tea or black tea for those with heavy red and brown body color.

The differences between duan mud and purple sand are: different mud materials, different stocks, and different colors after firing.

1. The mud is different.

Purple sand, also known as purple mud, is the original mineral mud and is one of the three major raw materials for making purple clay pots. The mud is also known as the mud, which is a mineral mud made from the symbiosis of purple mud and the green mud of the mountain.

2. The stock is different.

Purple sand, mainly distributed in the middle of the purple sand ore layer, is relatively easy to mine, so the stock of purple sand is larger. The section mud is a natural formation of purple mud and green mud in this mountain, which is very precious and has a small stock.

3. The color is different after firing.

The color of the mud is beige after firing, which is very similar to the color of the soil. After the purple sand is fired, the color is purple or purple-brown, and it looks simple and beautiful.

Features of purple clay pots

1. Purple sand pottery is a pottery tempered from sand, which does not take the aroma of tea and has no cooked soup, so it is used to make tea and the fragrance is contained.

2. The sandy teapot can absorb tea juice and accumulate "tea rust" after using it for a period of time, so the boiling water injected into the empty pot also has the fragrance of tea.

3. Easy to wash, not used for a long time, it is inevitable to have a peculiar smell, you can use boiling water to blanch two or three times, then pour cold water, and then make tea with the original taste.

4. Strong adaptability to cold and hot rapid changes, in the cold winter, Huai is empty and wax moon, and boiling water is injected, so that it will not expand and crack due to the rapid change of temperature and nuclear Zhengdu. Moreover, the heat transfer of sand is slow, and it is not hot to hold no matter how you lift it.

5. Purple sand pottery is resistant to burning, and it is placed in a warm fire to burn tea in winter, and the pot is not easy to explode. This is the reason why people who pay attention to tea drinking in ancient and modern China and abroad especially like to use purple clay pots.

Old Duan Ni, what is it like?

Lao Duan Ni refers not to the Duan Ni that has been stale for many years, but to the Duan Ni that is similar to the works of the Ming and Qing dynasties, which is a kind of texture effect of the finished product.

In the Ming and Qing dynasties, due to the limited mud refining techniques at that time, most of the mud materials refined were rough and rough, and they would not remove impurities and absorb iron too much. So it usually has a lot of associated minerals in it.

And this also achieves the simplicity and purity of the old Duan mud, which seems that the texture of the work is relatively rich and the sense of hierarchy is very good.

Old section of mud ore.

It is not difficult to see that the raw ore of Laoduan mud has yellow rust spots and groupers on its surface, which are naturally formed in the primary ore, and are not caused by oxidation for a long time. ​

Next, let's talk about the characteristics of Lao Duan Ni:

Feature 1: It has a rich grain texture and a good sense of hierarchy

The old mud itself is rich in mica and quartz, so the finished product will have a granular texture such as white or silver star or gray. Quoting the words of Zhou Gaoqi of the Ming Dynasty in "Yangxian Pot Tea System": "Tao is a white sand star, like a pearl."

That is, we often say that there are star sand spots on the surface of the pot body.

Feature 2: It has a wide firing temperature range

The temperature range of the old section mud is relatively wide, and some can even span about two and a half sizes.

Take the following three pots as an example, the leftmost one is the lowest kiln temperature, and the rightmost one is the highest, and these two pots, its firing temperature spans two labels.

Such mud characteristics ensure that even if it is fired at a high kiln temperature, there will be no porcelainization and excessive crystallization. ​

It should be noted that there are slight differences between the self-generated old mud and the artificially blended mud. ​

It mainly depends on whether its particles are fused. If you look at it with a magnifying glass, you will find that the primary ore has no obvious edges and corners between its particles, while the artificially blended ones have obvious edges and corners. ​

But what should be emphasized here is that the old mud has the simple and old taste of the old mud, and the new mud has the fashionable function of the new mud, as long as the mud is good and properly deployed, the finished product is naturally not bad.

The concepts and differences between the three are as follows:

Purple sand mountain green mud:

The green mud of this mountain, the ancient name is "pear peel mud". The ore is light green layer flake, after firing into pottery, the pear skin is frozen (beige), produced in the Huanglongshan rock layer and the purple mud symbiotic ore layer, only a few centimeters thick, between the upper layer of purple mud and the rock slab, commonly known as "dragon tendon". Its mineral composition is hydromica, kaolinite, quartz and a small amount of iron oxide.

White section: White section is a kind of section mud, which is a kind of symbiotic mineral soil of green mud and purple mud in the mountain. Benshan green mud and purple mud are both raw ores of purple sand.

The meaning of symbiosis is natural formation, and the nature of the two muds is the same, the original ore of the mud is currently very rare, and now the Yixing pot maker began to use the green mud and purple mud of the mountain to artificially mix to form an unnatural section of mud. Generally speaking, it is difficult to see, and it is even more difficult to see than the mountain, and the mud cannot burn the green color of the mountain.

White mud: White mud is a mixture, the scientific name is kaolin mine, which is a non-metallic mineral. It can be used as a papermaking coating or as a ceramic or filler.

White mud is a non-metallic mineral, which is a clay and claystone dominated by kaolinite clay minerals. Because it is white and delicate, it is also called dolomites. It is named after Gaoling Village, Jingdezhen, Jiangxi Province.

Differences: 1. From the color point of view: the green clay of this mountain is light green; Duan mud can't burn the green color of the mountain; White mud is white.

2. From the first point of view: Benshan green mud is produced in the symbiotic ore layer of Huanglongshan rock formation and purple mud, and the white section is a symbiotic mineral of green mud and purple mud in Benshan, and white mud is a clay and clay rock dominated by kaolinite clay minerals.