Turquoise will become darker after soaking in water, and the higher the porcelain degree, the longer the time. The newly bought soaking water is to test whether it is raw ore. Of course, it is said that this method is not absolute. Soak the beads in water for half 1 hour, and then take them out to see if some of them are darker in color. If the color is dark, it can be preliminarily judged as raw ore or treated by high-end technology. If it is pure, the natural voids will absorb water, making the stone darker, the blue one bluer and the green one greener. If optimized, the colloid contained in turquoise will block the gap, so it will not absorb water and the color will not change.
This method of distinguishing pure from impure is actually not very scientific, and the real pure porcelain pine does not change much after soaking in water. Because the density is too high. The change is not obvious.
Generally speaking, the purpose of soaking in water is simply to identify whether it is natural turquoise (with or without optimization). Add a little weight by the way. That's all!
The above content is purely hand-played. If you don't understand, you can even ask me! I'm happy to answer your questions at any time!