Identification and differentiation of sheep fat white jade

Identification and differentiation of sheep fat white jade

The white fat jade is the gem-grade material of Hetian jade. It is the best of white jade in pure white color. It has the best luster and texture. It is characterized by: warm and firm, pure and pure, white and flawless, like gelatin, hence the name. Sheep fat white jade has been highly valued since ancient times and is very precious. In ancient times, the emperor was qualified to wear white jade.

羊脂白玉的鉴定和区分,羊脂白玉

How to identify the characteristics of sheep fat white jade?

1, pure texture

The content of tremolite minerals in sheep fat white jade is over 99%, and the hardness is 6-6.5, second only to jade.

2, the structure is fine

The texture of the sheep fat jade is the same as that of the other colors of Hetian jade. It can be seen that the short-line consists of a fluffy structure and a felt-like structure with a fine structure.

3, color sheep fat white

The white tone of the sheep fat jade is generally warmer than white, with a slight faint yellowish tinge in the white and a sense of sorrow, thick and natural. It is semi-transparent and has the thick and dignified nature of the sheep fat. The white meat has a slight yellowish tone, like the fat of the sheep. The Hetian people in Xinjiang call it "old yellow and white jade."

Since people have different judgment criteria for color, it is judged whether it is a sheep fat jade, and "white" is not the only standard.

4, oily weight

In the process of constant touch in the palm of the hand, the fat jade jade naturally produces an "oily" feeling on the surface of the jade. This phenomenon also occurs in some Hetian fine white jade. When the sheep fat jade falls in the water, the jade body is lifted. It can be dripping without sticking, so the oily heavy sheep fat is also very good, so-called cotton, which is toughness.

5, the water head

Water head and spirit land are the names of jade transparency. In tremolite jade, the thickness is usually 2mm. The white jade is translucent-opaque in this criterion. The head of the sheep fat jade is translucent.

羊脂白玉的鉴定和区分,羊脂白玉

How to divide sheep fat jade and ordinary white jade?

The composition of Hetian jade white jade and suet jade is tremolite, but the difference in the content of the respective tremolites leads to a difference in jade. The tremolite of sheep fat jade is as high as 99%, but the tremolite of white jade is lower than that of sheep fat jade, so the texture is not as pure as that of sheep fat jade.

Although the colors of Hetian Baiyu and Yangzhiyu are the same white, the white color of the fat jade is not pure white. It is also slightly beige, and there is a feeling of white like gel on the light. It will be a bit It looks like pink and white. However, the whiteness of Hetian Baiyu is not comparable to that of sheep fat jade, and the degree of smoothness is not as good as that of Yangzhiyu.

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