1: Guanyin Clay is also known as kaolin, also known as bentonite, bainite, sweet earth, soap earth, clay, white clay,

is a clay mineral with montmorillonite as the main ingredient, and its chemical composition is quite stable, and it is known as the "all-purpose stone".

2: in the old society, the poor in the green and yellow or disaster years, often rely on eating Guanyin earth to live; this earth can be hungry, but can not be digested and absorbed by the human body, after eating bloating, difficult to defecate, a small amount of food is not fatal; although not starving, but due to the lack of nutrients, the person is still dying.

3: Guanyin soil is rich in silicon, zinc, magnesium, aluminum and other minerals, chemical molecular formula: Al4 (Si4O10) OH6, in addition to Al2O3, but also contains SiO2.