Natural jadeite jade pieces that have not been filled and colored are called A goods. If it is filled (such as filled with high molecular polymer, etc.). ), just call B goods; The mineral composition of B goods is natural jadeite, and the color is natural, but aging with glue will affect the brightness, transparency and luster of the color. If it is colored, it is called c goods; The mineral composition of C goods is the composition of natural jadeite. If it is filled and colored at the same time, it is called B+C goods. The name of Emerald B may be "Bleaching &; Polymer impregnated jadeite "(bleached and glued jadeite). The name of commodity C may come from the prefix "colored jade" (Ouyang Qiumei has another explanation). Goods A, B and C do not refer to the "grades" of A, B and C (A, B and C in English), but are generally called A Jade, B Jade and C Jade in English; Because jadeite (jadeite) or jadeite (jadeite rock) is not equal to Cui Fei, it is suggested to call it A Cui Fei, B Cui Fei and C Cui Fei (A jadeite, B jadeite and C jadeite).

Artificial jadeite

C goods

C goods refer to fake colored jade that has been artificially colored. The method is to infiltrate the dye into the colorless jadeite at high temperature and high pressure, so that all or part of it is dyed into emerald green or purple, but its color will fade and become dim with time.

Class b goods

B refers to the chemical removal of jadeite with defects, impurities and yellow parts on the surface, leaving only the original green and white elements, and then injecting epoxy resin glue into jadeite as consolidation, so that the whole jadeite looks more transparent and the color is more vivid. Because the interior of jade has been destroyed in the process of chemical treatment, the structure has become loose, so B goods are prone to cracks on the surface. In addition, if dyes are added during the treatment, it is called B+C goods.

natural jadeite

A goods

A goods refer to natural jadeite that has not been artificially treated at all.

In the long-term practice of jade processing and production, the predecessors of China's jewelry industry have summarized a lot of experience about jade, and expressed these characteristics of jade in the form of concise aphorisms. Remembering these maxims and being able to understand and appreciate their profound connotations will benefit you for life.