The production process of jade B goods is more and more superb. At present, there is a kind of high-grade B goods made with sodium-grade filling materials, and the gloss and transparency are enough to be chaotic. Therefore, the identification of jadeite is very important. The identification characteristics of jadeite B goods are listed below:
Gloss: After the surface of the jade A cargo has been polished, it is flat as a mirror and has strong reflective properties, which is glass luster. After the acid and alkali soaking treatment, the jade B product is loose in structure, the surface sees the dissolution pit, and the diffuse reflection is produced, and the surface is lustrous; the surface of the jadeite B is filled with resin and has no spirituality; the jadeite B is filled with rubber and then polished. Resin gloss spots are still visible in the filled pits, and the overall resin gloss and glass gloss are mixed.
Color: Emerald A goods are natural and layered. The color of the jade B goods is formed after the natural color is gone, and it is bright and yellow. Due to the destruction of the jadeite structure, the intrinsic optical properties have changed, and the color distribution of the jadeite B goods has no layering and mixed colors.
Structure: Jade raw materials for making jade B goods, generally jadeite with more impurities and loose structure. After being soaked and etched by strong acid and alkali, some substances are taken out, forming corrosion on the surface and inside along the mineral crystals, resulting in internal Connected fissures and surface channels, internal cracks are jagged tensile cracks. Under the condition of transmitted light, the internal longitudinal and transverse interlacing cracks are visible, which seriously affects the permeability. Under the reflective condition, the surface of the dissolution pit or the net is clearly visible, and the original glass luster of the jadeite is lost.
Bubbles: Refilled jade B goods in the surface layer or cracks in the colloid visible residual bubbles.
Impurities: Jade A goods are magnified and observed, sometimes see yellow, brown, black impurities; jade B goods are relatively pure, can not find impurities.
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