2. Goods B: It refers to rinsing low-grade jadeite with strong acid to remove impurities and stains, and then filling the space lost by acid etching with glue or epoxy resin glue. The jadeite treated in this way will be marked with "Jade Goods B" or "Jade Treatment" on the appraisal certificate.
3. Goods C refer to jadeite and its finished products artificially added with foreign dyes or chemically treated. The method is to use high temperature and high pressure to infiltrate the colorant into the original colorless jadeite, so that all or part of it is dyed emerald green or purple, but its color will fade and darken with time.
If you want to know the authenticity of your jade, you can go to a professional jewelry quality inspection agency for identification, but not every place has such a professional testing agency. So many people try to identify themselves online, which is not desirable. The identification of true and false jadeite is like going to a hospital to diagnose a disease, and it is more reliable to be operated by a professional doctor.