1, natural jadeite jade pieces without filling and coloring treatment are called goods A;
2, such as after filling (such as filling 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.
3. If it is colored, it is called C goods; The mineral composition of c goods is the composition of natural jadeite;
4. If there are both filling treatment and coloring treatment, it is called B+C goods;
5. the imitation without natural ingredients is called d goods.
The main materials of jadeites A, B and C are natural jadeites, but B and C are treated by processes other than carving on the basis of jadeite stone with poor water color, so that they show good water color in appearance; And D goods refer to goods that have no natural jadeite ingredients and are completely imitated.
When buying natural jadeite jade, be sure to look for "natural A-grade jadeite" and make a special distinction between "natural jadeite"!
Runzhi natural jade is of good quality and trustworthy!