The Hetian seed material is formed after thousands of years of grinding and scouring in the Yulong Kashi River bed. It is really hard to get a piece of seed with excellent shape and less sputum. The price is also high in the market. It is not very appropriate to say that jade is not a tool. It is not very suitable for seed jade, which is very beautiful. If it exists, it can be carved into various beautiful devices. The same thing can be done a lot.
However, for the Yulong River to give a beautifully shaped seed, any one of them is not allowed to hit even one eye. It is recommended to use the form of gold or silver to retain the original shape of the material. Natural, without carving, is a beautiful pendant. This kind of good material is better than any masterpiece.
The various skin colors of Hetian jade are formed by the chemical reaction of tens of thousands of years of geological movement. Jade is the body, the skin is the clothing, and there is clothing after the body. The skin can be used as a symbol to identify whether Hetian jade is a seed material or a mountain material. It is also an ornament for beautifying Hetian jade.
From the perspective of mineralogy, whether it is the color or original skin of jade, it is only the protective layer of Hetian jade, and the skin color is the external feature of Hetian jade.
There are several general statements about jade:
Hey. The ancients called the jade stone or the jade that was not carved.璞 also has the meaning of skin. The Ming Dynasty scientist Song Yingxing’s "Heavenly Creations" records: "Where the jade is hidden in the jade, its outer skin is jade."
æ² or dip. Some experts and scholars refer to the different oxidized colors formed by jade immersion in the long-term immersion as "æ²" or "dip". Some people also refer to the secondary oxidation color of seed materials as ochre.
oxidation. This is the name of the mineralogist. Because Hetian jade has been soaked in the riverbed for a long time, the ferrous oxide in jade is converted into ferric oxide under oxidizing conditions.
Most of the jade skins are various skin colors formed on the outside of the seed material by the ferrous oxide in Hetian jade after long-term immersion. This skin color has a variety of shapes and can be said to have no one. Some are like clouds, some are like arcs, some are scattered like dots, big or small, or round or square, or long or short, or irregular; their colors are also colorful, such as autumn pear skin, Jujube red skin, tiger skin, sunflower skin, sprinkled gold skin, crow skin, deer skin, osmanthus skin, aloe skin...
Hetian jade has two kinds of skin color and jade skin. The color skin is different because of the geological structure, formation conditions and age of the jade. The thickness is also slightly different, but it is generally about 1 mm. The jade skin is the surrounding rock wrapped by Hetian jade.
Because the skin color seed formation is more advanced, some valuable varieties such as red skin, oily skin, autumn pear skin, yellow skin, sprinkled gold skin, three-color tiger skin, etc., all come from skin color seeds.
The outer skin composition of seed jade can be divided into two types.
The original skin of the sand eye pit: refers to the small sand hole with the same skin pores as the skin, like a bumpy hemp pit, which is divided into two types: fineness and coarseness;
Color enamel raw skin: It is because some of the seed jade is infiltrated and infiltrated by other minerals in the river. It has formed an outer-to-inner penetration for many years. Not only the skin is smooth, but also many colors appear. So called "skin".
Since ancient times, we have attached great importance to Daiyu. Song Yingxing, a scientist of the Ming Dynasty, said: "The jade in the middle of the jade, there are those who have no vertical and horizontal ruler. The ancient emperor took it as a beggar. The so-called "the city is not easy to get." The five or six inches of innocent people, treated with a cup of heron, this has It’s also a treasure.â€
The outer skin of Hetian jade jade can be divided into three categories: color skin, sugar skin and stone skin.
The color leather is a layer of jade with a thin tan or brown skin (about 1 mm thick), which is caused by oxidation. The quality of jade, such as autumn pear, tiger skin, deer skin, etc., can be seen from the skin color. Often the finest white jade.
The outer skin of sugar jade is thicker, such as brown sugar, and the jade mine often has such jade, including white jade or sapphire.
The stone skin is surrounded by stone surrounding rock. It is necessary to take the surrounding rock to obtain jade. For example, Heshi is a "treasure of the skin."
Hetian jade is round and has a thick and thin skin, and the color often has jujube skin and autumn pear skin. Rounded abundance, the skin color must be fully wrapped, except for the carving, manual opening and dividing into small pieces. The skin is slightly transparent, bright or "glossy", and it can be seen for 1 to 2 minutes by hand or hand.
After a thousand years of scouring in the riverbed, the granules are naturally licked, and it will be colored in a soft place and deep into the texture where there is a crack. The color on the skin should be from deep to light, and the color on the crack should be from shallow to deep. This skin color is very natural, very gratifying, eye-catching and unobtrusive, and the color is more and more affinitive with the years.
The flesh is in a gradual transition shape. Because the skin color of the granules is slowly formed on the surface of the original gravel, it is jointly produced by the weathering and water analysis and the constraints of the large and small climate cycles. It is staged, so the color breaks into the jade. There is a sense of layering inside, and the feeling of skin and flesh is consistent and has a gradual transition.
The skin seems to have a layer of felt of different colors. This type of litter is mostly stone skin. Due to the special surrounding rock conditions of the formation of the jadeite and the fiber interweaving structure of the tremolite minerals, although the weathered honing is rounded, there are numerous fine and small "small sand eyes" on the surface, which are felt-like. Can be seen under 10 times the magnifying glass!
The skin color of Hetian jade is mostly in the density of jade, the hardness is not enough, especially in the place where there is cracking, by oxidative coloring, the real good jade is "eat" and does not go into color.
Therefore, the current seed and Tianyu will retain the original skin when carving. First, it can prove that it is a true seed. Second, the pretty color carving makes the seed material more ornamental and playful. It is straightforward and more valuable.
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