To Identify Jade Coating(2)

Today I will continue to introduce the ways to identify jade coating.
Touch:
Some coating Feitsui has bad sense of touch which are not smooth. Natural products are lubricants, coating materials may be hand tractors.
Knife scratching:
Higher than the hardness of jade blade, natural materials is fixed scraper blade, but no harm when scratching. But the coating color Jade scraping with a blade and moving film, it will fall off into a film.
Clean:
Use alcohol or xylene to clean the cotton balls, cotton balls will dye layer coating the Green.
Fire:
Using matches or a cigarette butt roast, the film will change the deformation and gets damaged, while natural materials react and change nothing.
Water burnning:
Boiling with hot water immersion for a moment, due to thermal expansion, the coating will turn to the emergence of wrinkles or folds split.

The methods of Scratching, fire and water burning are generally not easily used. The key is to observe and test. Upon detection of any doubt and when it is difficult to conclude, you should apply for the inspection agency to request the inspection. Or you can chat with the seller to see whether it is able to use of knife acratching, water burning or the method of fire (these three methods will not be harm to the real thing.) to verify.