How to identify a cargo jade

How to identify a jadeite? Jade is divided into: jade a cargo, jade b cargo, jade c cargo, etc., what are the differences between these abc grades? Those who know a little about jade are knowing that jadeite is a natural jade, the best jade, and then Xiaobian and everyone to understand the characteristics of the next jade a cargo? Come and find out the jadeite goods!

Jadeite A refers to the natural jade that has not been chemically treated by filling and coloring. It has long been recognized in the industry and has been called a cargo jade. The natural A-carved jade absorbs the essence of the sun and the moon, and it is full of spirituality. It is also called “living jade” in the folk. After years of wearing, the jadeite is constantly in contact with the human skin, and the jade will be more moist. The human body will also receive health care, and the wearer's mood is also very pleasant. This is what people often say, "people raise jade, jade raise people", and people can be mutually cultivated and human jade can communicate.

Gloss: After the surface of the jade A cargo has been polished, it is flat as a mirror, with strong reflective properties. It is a glass luster. After the acid and alkali soaking treatment of the jadeite B, the structure is loose, and the dissolution pit is not seen before filling. It produces diffuse reflection and is pockmarked; after the jade B goods are filled with glue, the surface is made of resin luster and has no spirituality; if the jadeite B is filled with rubber and then polished, the resin gloss spot is still visible in the filled pit, and the overall resin gloss Mixed with glass luster.

Color: Jade A goods are natural and layered; the color of Jade B goods is formed by the color of the original color, bright and yellow. Due to the destruction of the jadeite structure, the original optical properties have also changed, so the color distribution of the jadeite B goods has no layering and chaos.

Structure: It can make jadeite materials of jadeite B. It is mostly jadeite with more impurities and loose structure. After being soaked and corroded by strong acid and alkali, some substances are brought in and out, forming corrosion between mineral crystals on the surface and inside. , the internal connected cracks and the surface channel network are generated, and the 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.

Fluorescence: Jade B has a medium-yellow yellow-green, blue-green fluorescence.

Thermal reaction: Jadeite A goods are not melted below 800 °C, and carbonized when carbonized jade B goods are heated at 200~300 °C.

Density: In theory, the density of Jade B is slightly lighter than that of A, but this point lacks practicality because the density of jadeite varies within a range.

The above tells everyone how to identify a cargo jade, I hope to help you.

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