What are the defects of jadeite that are unacceptable?

In jadeite, the following defects are unacceptable:

1. Cracks: the original stone fell during handling, the plate was hit during processing, and the finished product accidentally fell to the ground. Cracks are generally caused by the day after tomorrow (secondary), mostly transverse cracks, visible to the naked eye, without fillers in the middle, nails can be scratched, some are very serious, and some are very slight.

2. Cracking: During the formation of long-term complex geological environment, jadeite broke due to external force. Cracks are generally caused by congenital (primary), mostly internal cracks and longitudinal lines, which can be seen by the naked eye. There are colored (impurity) fillers in the middle, and nails are generally not scraped, some are serious and some are slight.

3. Miscellaneous ribs: impurities that exist underground and feel like root ribs are impurities that jadeite has mixed in during the formation of long-term complex geological environment. Miscellaneous tendons are congenital (primary), visible to the naked eye, not cracks, some serious and some slight.

4. Stone particles: local dislocations of jadeite due to external force extrusion during the formation of long-term complex geological environment are characterized by uneven structure of adjacent parts in jadeite dislocations, which look like cracks.