How can we tell if there's kaolin in that hill?
It can be distinguished by its physical and chemical properties:Its characteristics: more non gloss, pure color, white and delicate, such as containing impurities can be gray, yellow, brown and other colors. According to the different causes of appearance is clod shape and dense state of loose rock block.
Having plasticity; wet soil can be molded into various shapes without breaking, and can remain unchanged for a long time.Specific or to pass the test. If you need to test, you can contact me, we analyzed the testing center, the phone is the user name.