The reason why the color of unearthed ancient jade varies greatly is due to the different time and place of entering the land, and the different depth of the Qin. There is a saying in the industry that there are "Thirteen Colors" of Qinse, which means there are so many colors. The difference in the color of ancient jade is mainly related to the nearby materials. Generally, jade is buried in the soil and will always be eroded by the soil. The lighter ones are called "soil erosion" or "soil rust", and the heavier ones are called "soil rust". "Dips" and "soil spots" are all caused by the fumigation of the earth's atmosphere. Generally speaking, the "rust" and "soil spots" of ancient jade that have been buried for a long time cannot be scraped off with a knife, because the sandy soil has penetrated into the texture of the jade and become one with the jade. The color of ancient jade influenced by loess is like chestnut yellow; the color of ancient jade influenced by rosin is like beeswax, which is light yellow; the color of ancient jade influenced by indigo is like blue sky. This is because the indigo on the clothing penetrates deeply into the texture of the jade; The color of ancient jade with blood Qin is red, which is called "jujube skin red", and the deep color is called "sauce petal purple"; the color of ancient jade with copper Qin is like jade, which is called "parrot green". This is because after the bronze is buried, Produces patina. If the jade is next to it, the patina will penetrate deep into it. After being unearthed and restored, the color will be more delicate and moist than jade. Ancient jade affected by earth fire will turn white, which is called "chicken bone white" or "ivory white". , "Fish Maw White" and so on. The ancient jade stained by lime turns into a light crimson color. After being played with, the color is as dazzling as crimson clouds.
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