The A product of jadeite is pure natural jadeite. Only by traditional mild surface acid or surface wax treatment, the structure of jadeite is corroded and destroyed.
Jade B, the national standard of jewelry and jade, is optimized to be jade that has been bleached and waxed by acid leaching during processing. According to the strength of acid leaching bleaching, it can also be divided into strong corrosion and weak corrosion. The jadeite with strong corrosion optimization is equivalent to the glue-free B goods on the market. Its interior has been seriously damaged. During the processing, the rubberized jadeite was corroded and bleached by strong acid, and the internal structure of jadeite was seriously damaged, and then the rubberized goods were filled with anti-reflection solidified colloidal polymer. Whether optimizing jadeite or filling jadeite should be classified as destructive treatment of jadeite, that is, B goods. Weakly corroded jadeite is called optimized jadeite because it does little damage to it. Jadeite ornaments treated with colloidal color and jadeites that have not been treated with colloidal color, bleached with or without colloidal color by acid leaching and added with dyes are called B+C goods.
The c product of jadeite is dyed jadeite. Whether it is acid leaching bleaching or filling with glue, artificially colored jadeite is called C goods.
At present, the new trend of jade treatment is to use wax instead of glue after strong acid treatment. Wax filling is for optimization, and glue filling is for processing (B goods), which creates a loophole.
In addition, water glass (siliceous matter) has been filled with jadeite for a long time, and the effect is very good. At present, no one knows. There are jadeites filled with nano-aluminum and silicon dioxide, which are all called high-grade B goods.