Twilight is a common external feature of unearthed jade, and it is also an important basis for identifying the authenticity of ancient jade. Therefore, we should seriously study the twilight of ancient jade. Today we will talk about the black scorpion of ancient jade.
Causes of black scorpion - iron element infiltrated into tremolite and transformed into actinolite
Scholars also have different views on the causes of ancient jade black scorpions. From the current research, it seems that it is certain that the formation of most black mites has nothing to do with the so-called "mercury intrusion" of the ancients. The liquid mercury in nature is rare and easy to volatilize. Whether liquid mercury is present in the ancient jade burial environment is doubtful. Mr. Yang Boda It has also been pointed out: "Mercury can neither be attached to jade watches, nor can it penetrate deep into jade muscles, so this statement is wrong."
Causes of black cockroaches - high temperature treatment of organic carbonization
Experiments conducted by many scholars have shown that the light-colored tremolite jade can be brownish-black or black when heated to a specific temperature. According to this, Mr. Wenguang speculated that the brown-black western week of the Xi'an Daixi site is high-temperature heating. Caused by.
Causes of black cockroaches - organic matter infiltration
Some scholars believe that it is caused by the carbonization of organic matter infiltrated into the surface crack of jade, which can be regarded as one of the causes of black cockroaches. In addition, Mr. Qian Xianhe found that the iron content of the ancient jade black scorpion was higher, and it was speculated that the infiltration of the external iron element caused the tremolite to be converted into an actinolite and thus formed black sputum. Mr. Liu Rushui believed that the infiltration and oxidation of organic matter in the soil and the infiltration of ferric ions caused the formation of black carp when the ancient jade was buried.
Causes of green sputum - copper oxide infiltration
The origin of the ancient jade green cricket is not much researched by scholars. The traditional view is that the green carp is caused by the rusting of bronze when it is close to the bronze when it is buried. The bronze and jade contact parts of such composite inlays are often attached with blue and green minerals. The blue is blue-copper ore, the green is malachite and zinc malachite, all of which are bronze alloy elements. The oxides indicate that if the bronzes and jade are in contact with each other when buried, the copper rust adheres to the surface of the jade, and it will gradually infiltrate and form green scorpion.
In addition, it should be noted that the definition of the traditional "æ²" includes not only the change of the color of the jade, but also the change of the texture of the jade. For example, the old name "Ding Jinyu" and "bad spot" are mostly formed by acid and alkali corrosion. The hole, "soil rust" is mostly formed by the colloidal solution in the soil attached to the surface of the jade.
The relationship between the formation of twilight and the macro environment
The formation of ochre is related to the macro-environment such as climate and soil in the region. Jade wares are unearthed in different regions. Although they are of similar jade materials and have similar burial times, the degree of eclipse often differs greatly.
First, the Hongshan cultural region in western Liaoning belongs to the temperate continental grassland climate and weakly acidic soil. The jade eclipse is mostly mild, and the ochre is generally thin layered black carp and white pelicans.
Second, the Liangzhu Cultural District in the lower reaches of the Yangtze River belongs to the subtropical monsoon climate, strong acid or acid soil. The weathering and leaching effect of the ancient jade is sufficient, the jade is severely eroded, and the opaque chicken bone is white.
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