Why do you say that Hetian jade white jade is "ten white and nine pines"?

和田玉

In the line, Hetian Baiyu has a saying called “Ten Bai Jiu Song”. In the past, he only knew “Ten Seeds and 9 Cracks”. Hetian Baiyu is the mainstream product of Hetian Yu, and the delicateness is the primary indicator of Hetian jade. Why do some people say that Hetian Baiyu is "Ten Bai Jiu Song"? This is because really Hetian jade or real jade through the light, can see the internal structure, even the top sheep fat jade has a very fine structure, that is, if its color is particularly good, Then his density will be slightly worse than the ninety-nine. If both of them are reached, and his fat is also very good, then it is considered the top of the fat jade, like this material, is rare.

The fineness of jade material with particularly good whiteness is often poor. The reason is due to the content of agglomerated stone. The fine-grained stone is fine in texture and green in color. The less-yang stone is less white and brighter.

Sapphire is because there are more erecting stones, the jade body is condensed and orderly, the crystal is finer and more uniform, and the filling is complete. The jade body looks really finer than the white jade of the Shaoyang stone. Therefore, the quality of Hetian Baiyu is mostly "flashing green", while the pure white white jade will appear "ten white and nine pines".

I know this truth. There is a preliminary understanding of why the sapphire looks more delicate than the white jade.

Sapphire and white jade are a series in terms of formation principle. When acidic magma (SiO2+H2O) invades into dolomitic marble (CaMg(CO3)2), the two contact contact reactions form calcium magnesium silicate (Ca2Mg5). (Si4O11)2(OH)2)----Tremolite, using chemical reaction formula: 5CaMg(CO3)2+8SiO2+H2O→Ca2Mg5(Si4O11)2(OH)2+3CaCO3+7CO2

Among them, Mg2+ in calcium and magnesium ions (Ca, Mg) 2+ can be replaced by iron ion Fe2+, which is called isomorphism. The Fe2+ content is high, forming an actinolite, and the Fe2+ content is very small, that is, substantially calcium and magnesium, forming a tremolite. In theory, there is basically no pure tremolite in nature (there are reports that Korean white jade does not contain actinolite, the reason is still unknown), and there is basically no purely pure actinolite, so we call the amphibole ( Hetian jade is the middle zone of the original minerals of the tremolite-yangshi stone. It may be to the right and may be to the left. Among them, Yang Qishi is mostly sapphire, followed by Qingbaiyu and Baiyu. In this sequence, how much Mg2+ is replaced by Fe2+ depends on how much iron ions and temperature, pressure, etc. are present at this location. In the contact zone close to the magmatic rock part of the Fe2+, forming sapphire, away from the contact zone, Fe2+ has been consumed, and the jade is getting whiter.

As the isomorphic Mg2+ and Fe2+, it is determined whether the sapphire or the white jade is formed in this part, but the erectite is formed earlier than the tremolite, which means that the tremolite is formed after the erectite. Crystallize around the crystal. Crystallography tells us that when a substance is crystallized from a liquid, a fluid, or a semi-liquid (colloid) with a drop in temperature, it is preferable to have a crystal nucleus, such as an impurity, so that it is easier to gradually start crystallization when the temperature is still relatively high. Crystallization can begin at a point above the theoretical crystallization temperature and below the theoretical crystallization concentration. Otherwise, it is necessary to wait until it is the theoretical crystallization temperature and concentration to "roll pile" the crystal. Therefore, when making artificial crystals in scientific or industrial laboratories, a crystal nucleus is placed in the solution.

For example, the jade body with more radiant stones is like a semi-liquid cement made of a reinforced stone frame and then poured into a tremolite, and then solidified into concrete blocks. Such concrete blocks have roots, are attached, and gradually solidify, so they are solid.

Sapphire is because there are more erecting stones, the jade body is condensed and orderly, the crystal is finer and more uniform, and the filling is complete. The jade body looks really finer than the white jade of the Shaoyang stone. Therefore, the quality of Hetian Baiyu is mostly "flashing green", while the pure white white jade will appear "ten white and nine pines".

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