OL Jewelry Network is the first company in China to focus on office women's jewelry, diamonds, diamond rings, wedding rings and diamond rings. Half cheaper than traditional jewelry stores, Italian designers customize personalized jewelry for you, which is worth the money and luxury is no longer expensive. Sheep fat white jade is a gem-grade material in Hetian jade, and it is the best in white jade. It has the best luster and texture, and its characteristics are: moist, dense, pure and flawless, like solidified fat, hence the name. The easiest way to distinguish this kind of jade from ordinary white jade is to watch it under white fluorescent lamp. Facing the fluorescent lamp, the suet white jade is white and transparent, and it has a feeling of powder fog. The general white jade, although translucent to the fluorescent lamp, has no sense of powder fog. The biggest difference between the two is that white jade is white to the naked eye regardless of its grade, but there must be different shades of light yellow under the fluorescent lamp, so if there is a trace of light yellow under the fluorescent lamp, it cannot be called sheep fat white jade. It is absolutely impossible for rare sheep fat jade to contain any impurities. The identification points of sheep fat jade must meet five aspects, namely, pure texture, fine structure, sufficient head, white sheep fat and heavy oil. Pure texture-the tremolite mineral content in sheep fat jade reaches 99%. Sheep fat jade exists in the most perfect area of wall rock alteration. When the contact between granodiorite and dolomite produces a series of contact metamorphic rock series, dolomite becomes dolomite marble, and hydrothermal solution passes through the structural fracture channel of dolomite marble in the late magmatic period, and metasomatism occurs to form tremolite. The surrounding rock has been eroded and deformed into three lithofacies: dolomite marble-tremolite dolomite marble-tremolite, and suet jade is produced in tremolite lithofacies. Micro-structure-tremolite in sheep fat jade is microfibrous crystal and aggregate. The crystal size of tremolite can be measured under electron microscope and optical microscope. The fiber length (longitudinal direction) of tremolite in suet jade is 0.033-0.0 1mm, and the width (transverse direction) is 0.0006-0.001mm. These microfibril tremolite. Microfiber, fluffy and felt tremolite crystal aggregates are characterized by not uniform extinction at the same angle under orthogonal polarization. Shuitoujiao-Shuitou and Lingdi are the names of jade transparency. In tremolite jade, the thickness of 2mm is usually taken as the standard. White jade is translucent-opaque in this criterion, and the head of sheep fat jade is translucent. Color sheep fat white-sheep fat white is not pure white, but white with oily luster, some of which can reveal a slight yellow, and those with poor texture can also reveal a slight light gray tone in white. Heavy oiliness-suet jade will naturally produce an "oily" feeling on the jade surface in the process of people's palm touching, which is also found in some fine white jade of Hetian jade. Sheep fat jade falls into the water and lifts the jade body, which can be dripped without sticking, so the oil of sheep fat jade is also very good. The so-called sponginess is toughness. Therefore, only those who meet the above five aspects are really good white sheep and fat jade.