What kind of jade is "suet jade"?

1. First of all, it must be seed material, pure jade. The content of tremolite in the mineral composition of sheep fat jade is very high, above 99%. The relatively single mineral composition makes Hetian jade pure and uniform, which has great influence on luster, color and transparency.

2. There is also a fine structure. The fine structure of suet jade includes two aspects. First, its constituent mineral particles are relatively small and difficult to distinguish with the naked eye; In addition, the shape (such as fluff, felt, etc. ) The focused particles are relatively small.

3, the color requirement is suet white, suet white is not extremely white, and its white even has yellow or cyan. Sheep fat white refers to very pure white, with oily luster, moist and shiny. Moisturizing is the most remarkable advantage that distinguishes Hetian jade from other jade, and white jade with suet is no exception.

4. Heavy oiliness: Sheep fat jade will naturally produce an "oily" feeling on the jade surface in the process of people's hands constantly touching, which is also found in some fine white jade of Hetian jade. Sheep fat jade falls into the water to hold up the jade body, which can be dripping without touching, so the softness of oily sheep fat jade is also very good, which is called softness, that is, toughness.

5. Water head and foot: both head and soul are called the transparency of jade. In tremolite jade, the thickness of 2mm is often used as the standard. In this criterion, white jade is translucent-opaque, and the foot of suet jade means translucent.

Sheep fat jade is divided into "seed jade" and "mountain material"

The so-called "seed jade" is fished out from the jade river at the foot of Kunlun Mountain. This kind of "seed jade" is delicate, moist and glossy as fat. Some "seed jade" muscles contain "rice seepage", like a white rice to be melted, which is one of the texture characteristics of aquatic white jade; Others have all kinds of skin because they have been soaked in water and sand for a long time. This kind of "seed jade" is superior to mountain material and extremely rare.

Mountain material, pure white as fat, rare. According to relevant data, Hetian jade gradually became the main jade material after the Spring and Autumn Period and the Warring States Period, and all of them were collected seed materials. It was not until the Qing Dynasty that mountain materials were adopted. Sheep fat white jade has always been valued, but it is extremely rare in the world. It is the best jade, and the price is very precious.