Quality, good quality Lantian jade has fine texture, good toughness, poor quality Lantian jade has loose texture structure; defects, good quality Lantian jade has inconspicuous black spots or cotton wool, poor quality Lantian jade has no defects on the surface; gloss, good quality Lantian jade has excellent oil, gloss is shiny, poor quality Lantian jade is not oily.
To observe whether Lantian jade is good or not, one can look at the texture. Lantian jade with good quality has not been treated with any chemical treatment, so the texture is fine and has good toughness. Lantian jade with poor quality has loose texture and rough structure due to acid washing.
If you observe whether the Lantian jade is good, you can see the flaws. The surface of the Lantian jade with good quality has inconspicuous black spots or cotton wool, which will gradually fade after wearing it for a long time. The surface of the Lantian jade with poor quality does not have the slightest flaw, and the color and luster also appear uniform and unnatural.
To observe whether the Lantian jade is good or not, one can see the luster. The Lantian jade with good quality is extremely oily, and it looks shiny and shiny. The Lantian jade with poor quality is not oily, nor is it very warm, and the whole looks lifeless.