First, the color of sheep fat white Sheep fat white is not pure white, but white with oily luster. Some in white can reveal a slight yellow color, and poor texture can also reveal a slight light gray tone in white. Second, 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 suet jade is translucent. Third, the texture is pure The mineral content of tremolite in sheep fat jade reaches 99%, and the fat jade is present in the most perfect area for wall rock alteration. When the granodiorite is in contact with dolomite, a series of contact metamorphic rocks are formed, and the dolomite becomes dolomite marble. The late magmatic hydrothermal fluid along the dolomite marble tectonic fissure channel is metamorphic to form tremolite. The surrounding rock erosion is transformed into three kinds of lithofacies of dolomite marble-tunnelized petrochemical dolomite marble-metamorphic rock, and the sheep fat jade is found in the tremolite rock facies. Fourth, the structure is fine The tremolite in the sheep fat jade is microscopically crystallized and aggregated. The crystallite size of the tremolite can be determined under electron microscope and optical microscope. The length of the tremolite fiber in the suet jade (longitudinal) is 0.033- 0.01mm, width (transverse) 0.0006-0.001mm, these microscopic, fluffy, felt-like tremolite crystals are intertwined to form a pile-like structure, a felt-like structure, and an interwoven structure. Microscopic, fluffy, felt-like tremolite crystal aggregates, characterized by orthogonal polarized light, do not exhibit uniform extinction at the same angle. Five, 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. Therefore, only the above five aspects are the best good sheep white jade. Rayon Jacquard Fabric,Rayon Export Company,Jacquard Viscose Rayon Fabric,Rayon Demi Satine Shaoxing Shangda Textile Co., Ltd , https://www.shangdatex.com
